ALBERT

Note: Contents (I) Motivation and Methods (A) The Antarctic Ice Sheet and its Role in the Global System (A.1) Main Geographic and Glaciologic Provinces of Antarctica (A.2) Climatic Change, Sea-Level Rise,and Changes in the Cryosphere (A.3) Modeling Versus Measuring B) Satellite Remote Sensing (B.1) An Overview of Ice Sheet Observations by Satellite (B.2) Satellite Radar Altimetry (B.2.1) Satellite Missions with Radar Altimeter Observations (B.2.1.1) SEASAT (B.2.1.2) GEOSAT (B.2.1.3) ERS-1 and ERS-2 (B.2.1.4) Other Missions with Altimeters, and Related Missions (B.2.2) Mission Types: Exact Repeat Missions and Geodetic Missions (B.2.3) Radar Measurement Principles (B.3) Analysis of Satellite Radar Altimeter Data over Ice Sheets and Glaciers (B.3.1) Problems and Methods of Mapping Ice Surface Elevation (B.3.2) Derivation of Ice Surface Roughness and Morphology (C) Data Analysis Methods Applied in the Antarctic Atlas (C.0) Introduction (C.1) Corrections of Radar Altimeter Data (C.1.1) Corrections Applied to Satellite Radar Altimeter Data for Ice Surface Mapping (C.1.2) The Bad-Track Problem (C.1.3) The Need for Interpolation of Geophysical Line Survey Data (C.2) Map Projection and Atlas Mapping (C.2.1) The UTM Projection (C.2.2) The Atlas Mapping Problem (C.2.3) The Solution: The Antarctic Atlas Mapping Scheme (C.2.4) Map Sheet Calculation with TRANSVIEW (C.3) Geostatistical Estimation (C.3.1) Concept of the Regionalized Variable and Principles of Variography (C.3.2) Kriging (C.3.3) Variography for Satellite Radar Altimeter Data over Antarctic Ice Surfaces (C.3.4) Application: Search Algorithm and Kriging Parameters for Antarctic Atlas DTMs. Mapping Parameters (C.3.4.1) Search Routine for Geophysical Line Survey Data and Software (C.3.4.2) Grid Spacing (C.3.4.3) Mapping Parameters: Contouring and Coloring Scheme (C.3.5) Error Analysis (C.3.6) Influence of the Radar Altimeter Sensor Compared to Influence of the Variogramin Kriging for GEOSAT and ERS-1 Data (C.4) The Role of the Geodetic Reference Surface (C.4.1) Ellipsoid and Geoid Concepts (C.4.2) Mapping of Ice Surfaces with Reference to Geoid Models (II) The Atlas (D) Atlas Maps (D.0) Map Organization and Description Principles (D.1) Latitude Row 63-68°S: Maps from GEOSAT and ERS-1 Radar Altimeter Data Map m45e37-53n63-68 Casey Bay Map m57e49-65n63-68 Napier Mountains Map m69e61-77n63-68 Mawson Coast East Map m81e73-89n63-68 Leopold and Astrid Coast Map m93e85-101n63-68 Queen Mary Coast Map m105e97-113n63-68 Knox Coast Map m117e109-125n63-68 Sabrina Coast Map m129e121-137n63-68 Clarie Coast Map m141e133-149n63-68 Adélie Coast Map m153e145-161n63-68 Ninnis Glacier Tongue Map m297e289-305n63-68 Antarctic Peninsula (Graham Land) (D.2) Latitude Row 67-72.1°S: Maps from GEOSAT and ERS-1 Radar Altimeter Data Map m15we23W-7Wn67-721 Ekström Ice Shelf Map m3we11w-5n67-721 Fimbul Ice Shelf Map m9e1-17n67-721 Princess Astrid Coast Map m21e13-29n67-721 Erskine Iceport Map m33e25-41n67-721 Riiser-Larsen Peninsula Map m45e37-53n67-721 Prince Olav Coast Map m57e49-65n67-721 Kemp Coast Map m69e61-77n67-721 Lambert Glacier Map m81e73-89n67-721 Ingrid Christensen Coast Map m93e85-101n67-721 Wilkes Land (e85-101n67-721) Map m105e97-113n67-721 Wilkes Land (e97-113n67-721) Map m117e109-125n67-721 Wilkes Land (e109-125n67-721) Map m129e121-137n67-721 Wilkes Land (e121-137n67-721) Map m141e133-149n67-721 Wilkes Land (e133-149n67-721) Map m153e145-161n67-721 Cook Ice Shelf Map m165e157-173n67-721 Pennell Coast Map m292e284-300n67-721 Antarctic Peninsula (Palmer Land) (D.3) Latitude Row 71-77°S: Maps from ERS-1 Radar Altimeter Data Map m333e315-351n71-77 Riiser-Larsen Ice Shelf Map m357e339-15n71-77 New Schwabenland Map m21e3-39n71-77 Sør Rondane Mountains Map m45e27-63n71-77 Belgica Mountains Map m69e51-87n71-77 Upper Lambert Glacier Map m93e75-111n71-77 American Highland Map m117e99-135n71-77 Dome Charlie Map m141e123-159n71-77 Southern Wilkes Land (e123-159) Map m165e147-183n71-77 Victoria Land Map m213e195-231n71-77 Ruppert Coast Map m237e219-255n71-77 Bakutis Coast Map m261e243-279n71-77 Walgreen Coast Map m285e267-303n71-77 Ellsworth Land Map m309e291-327n71-77 Black Coast (D.4) Latitude Row 75-80°S: Maps from ERS-1 Radar Altimeter Data Map m333e315-351n75-80 Coats Land Map m357e339-15n75-80 Western Queen Maud Land (North) Map m21e3-39n75-80 Central Queen Maud Land (North) Map m45e27-63n75-80 Valkyrie Dome Map m69e51-87n75-80 South of Lambert Glacier Map m93e75-111n75-80 East Antarctica (Sovetskaya) Map m117e99-135n75-80 East Antarctica (Vostok) Map m141e123-159n75-80 East Antarctica (Mt. Longhurst) Map m165e147-183n75-80 Scott Coast Map m189e171-207n75-80 Roosevelt Island Map m213e195-231n75-80 Saunders Coast Map m237e219-255n75-80 Northern Marie Byrd Land Map m261e243-279n75-80 Northern Hollick-Kenyon Plateau Map m285e267-303n75-80 Zumberge Coast Map m309e291-327n75-80 Ronne Ice Shelf (D.5) Latitude Row 78-81.5°S: Maps from ERS-1 Radar Altimeter Data Map m333e315-351n78-815 Filchner Ice Shelf Map m357e339-15n78-815 Western Queen Maud Land (South) Map m21e3-39n78-815 Central Queen Maud Land (South) Map m45e27-63n78-815 Eastern Queen Maud Land (South) Map m69e51-87n78-815 Dome Argus Map m93e75-111n78-815 East Antarctica (e75-111n78-815) Map m117e99-135n78-815 EastAntarctica (e99-135n78-815) Map m141e123-159n78-815 Byrd Glacier Map m165e147-183n78-815 Hillary Coast Map m189e171-207n78-815 Ross Ice Shelf Map m213e195-231n78-815 Shirase Coast Map m237e219-255n78-815 Southern Marie Byrd Land Map m261e243-279n78-815 Southern Hollick-Kenyon Plateau Map m285e267-303n78-815 Ellsworth Mountains Map m309e291-327n78-815 Berkner Island (III) Applications (E) Monitoring Changes in Antarctic Ice SurfaceTopography: The Example of the Lambert Glacier/Amery Ice Shelf System (E.1) The Problem of Monitoring Changes (E.2) Time Series of Digital Terrain Models and Maps (E.3) Altimeter Data: Acquisition and Corrections (E.4) Visual Comparison - Quantitative Comparison (E.5) Calculation of Elevation Changes (E.6) Discussion of Results on Elevation Changes (E.6.1) Results of the Monitoring Study (E.6.2) Comparison with Other Maps of Lambert Glacier/Amery Ice Shelf (E.7) On the Potential Existence of Surge Glaciers in the Lambert Glacier/Amery Ice Shelf System (E.7.1) Introduction to the Surge Phenomenon and Relationship to Results of the Monitoring Study (E.7.2) Discussion of the Surge Hypothesis in the Glaciologic Literature (F) Detailed Studies of Selected Antarctic Outlet Glaciers and Ice Shelves (F.0) Introduction (F.1) Detail Map 1: Slessor Glacier (ERS-1 Data 1995) (F.2) Detail Map 2: Stancomb-Wills Glacier (ERS-1 Data 1995) (F.3) Detail Map 3: Jutulstraumen Glacier (ERS-1 Data 1995) (F.4) Detail Map 4: Shirase Glacier (ERS-1 Data 1995) (F.5) Detail Map 5: Lambert Glacier (ERS-1 Data 1995) (F.6) Detail Map 6: West Ice Shelf (ERS-1 Data 1995) (F.7) Detail Map 7: Denman Glacier (ERS-1 Data 1995) (F.8) Detail Map 8: Vanderford Glacier (ERS-1 Data 1995) (F.9) Detail Map 9: Totten Glacier (ERS-1 Data 1995) (F.10) Detail Maps 10: Mertz Glacier,11: Ninnis Glacier, and 12: Mertz and Ninnis Glaciers (GEOSAT Data 1985-86) (F.11) Detail Map 13: Rennick Glacier (ERS-1 Data 1995) (F.12) Detail Map 14: David Glacier/Drygalski Ice Tongue (ERS-1 Data 1995) (F.13) Detail Map15: Thwaites Glacier (ERS-1 Data 1995) (F.14) Detail Map 16: PineIsland Glacier (ERS-1 Data 1995) (G) Combination of SAR and Radar Altimeter Data: Lambert Glacier/Amery Ice Shelf (IV) References and Appendix (H) References (I) Appendix (I.1)Glaciological Glossary (I.2) Index of Place Names (I.3) Antarctic Expeditions (I.3.1) Early Seagoing Expeditions (I.3.2) Expeditions to the Antarctic Continent (I.3.3) Antarctic Expeditions after the International Geophysical Year

Note: Contents: 1 Global Distribution of Lakes / M. MEYBECK. - 1 Introduction. - 2 Background Material and Approaches to Global Lake Census. - 2.1 Data Used. - 2.2 Approaches to Global Lake Census. - 3 General Laws of Lake Distribution. - 3.1 Lake Density . - 3.2 Limnic Ratio. - 4 Distribution of Lakes of Tectonic Origin. - 5 Lakes of Glacial Origin. - 5.1 Lake Densities. - 5.2 Global Deglaciated Area. - 5.3 Total Number of Glacial Lakes. - 6 Fluvial Lakes. - 7 Global Distribution of Crater Lakes. - 8 Global Distribution of Saline Lakes. - 8.1 Coastal Lagoons. - 8.2 Salinized Lakes due to Evaporation. - 9 Global Lake Distribution. - 9.1 Extrapolation Approach. - 9.2 Lake Type Approach. - 9.3 Climatic Typology Approach. - 9.4 Lake Distribution in Endorheic Areas. - 9.5 Global Dissolved Salt Distribution in Lakes. - 10 Major Changes in Global Lake Distribution in the Geological Past. - 10.1 Lake Ages. - 10.2 Historical Changes. - 10.3 Postglacial Changes. - 11 Discussion and Conclusions. - References. - 2 Hydrological Processes and the Water Budget of Lakes / T. C. WINTER. - 1 Introduction. - 2 Hydrological System with Regard to Lakes. - 2.1 Interaction of Lakes with Atmospheric Water. - 2.2 Interaction of Lakes with Surface Water. - 2.3 Interaction of Lakes with Subsurface Water. - 2.4 Change in Lake Volume. - 3 Summary. - References. - 3 Hydrological and Thermal Response of Lakes to Climate: Description and Modeling / S. W. HOSTETLER. - 1 Introduction. - 2 Hydrological Response. - 3 The Hydrological Budget. - 4 Hydrological Models. - 5 Thermal Response. - 5.1 Energy Budget and Energy Budget Models. - 5.2 Models and Modeling. - 6 Use of Models to Link Lakes with Climate Change. - 7 Input Data Sets. - 8 Sample Applications. - 9 Summary. - References. - 4 Mixing Mechanisms in Lakes / D. M. IMBODEN and A. WÜEST. - 1 Transport and Mixing. - 2 Lakes as Physical Systems. - 3 Fluid Dynamics: Mathematical Description of Advection and Diffusion. - 3.1 Equations of Fluid Motion. - 3.2 Turbulence, Reynolds' Stress, and Eddy Diffusion. - 3.3 Vertical Momentum Equation. - 3.4 Nonlocal Diffusion and Transilient Mixing. - 4 Density and Stability of Water Column. - 4.1 Equation of State of Water. - 4.2 Potential Temperature and Local Vertical Stability. - 5 Energy Fluxes: Driving Forces Behind Transport and Mixing. - 5.1 Thermal Energy. - 5.2 Potential Energy. - 5.3 Kinetic Energy. - 5.4 Turbulent Kinetic Energy Balance in Stratified Water. - 5.5 Internal Turbulent Energy Fluxes: Turbulence Cascade. - 6 Mixing Processes in Lakes. - 6.1 Waves and Mixing. - 6.2 Mixing in the Surface Layer. - 6.3 Diapycnal Mixing. - 6.4 Boundary Mixing. - 6.5 Double Diffusion. - 6.6 Isopycnal Mixing. - 7 Mixing and Its Ecological Relevance. - 7.1 Time Scales of Mixing. - 7.2 Reactive Species and Patchiness. - 7.3 Mixing and Growth: The Search for an Ecological Steering Factor. - References. - 5 Stable Isotopes of Fresh and Saline Lakes / J. R. GAT. - 1 Introduction. - 1.1 Isotope Separatio During Evaporation. - 2 Small-Area Lakes. - 2.1 Seasonal and Annual Changes. - 2.2 Deep Freshwater Lakes. - 2.3 Transient Surface-Water Bodies. - 3 Interactive and Feedback Systems. - 3.1 Network of Surface-Water Bodies. - 3.2 Recycling of Reevaporated Moisture into the Atmosphere. - 3.3 Large Lakes. - 3.4 Large-Area Lakes with Restricted Circulation. - 4 Saline Lakes. - 4.1 Isotope Hydrology of Large Salt Lakes. - 4.2 Ephemeral Salt Lakes and Sabkhas. - 5 Isotopie Paleolimnology. - 6 Conclusions: From Lakes to Oceans. - References. - 6 Exchange of Chemicals Between the Atmosphere and Lakes / P. VLAHOS, D. MACKAY, S. J. EISENREICH, and KC. HORNBUCKLE. - 1 Introduction. - 2 Air-Water Partitioning Equilibria. - 3 Diffusion Between Water and Air. - 4 Volatilization and Absorption: Double-Resistance Approach. - 5 Factors Affecting Mass-Transfer Coefficients. - 6 Partitioning of Chemical to Paniculate Matter in Air and Water. - 6.1 Air. - 6.2 Water. - 7 Atmospheric Deposition Processes. - 7.1 Dry Deposition. - 7.2 Wet Deposition. - 8 Specimen Calculation. - 8.1 Step 1: Physicochemical Properties. - 8.2 Step 2: Mass-Transfer Coefficients. - 8.3 Step 3: Sorption in Air and Water. - 8.4 Step 4: Equilibrium Status. - 8.5 Step 5: Volatilization and Deposition Rates. - 9 Role of Air-Water Exchange in Lake Mass Balances. - 10 Case Studies. - 10.1 Mass Balance on Siskiwit Lake, Isle Royale. - 10.2 Mass Balance on Lake Superior. - 10.3 Air-Water Exchange in Green Bay, Lake Michigan. - 10.4 Air-Water Exchange in Lake Superior. - 11 Conclusions. - References. - 7 Atmospheric Depositions: Impact of Acids on Lakes / W. STUMM and J. SCHNOOR. - Abstract. - 1 Introduction: Anthropogenic Generation of Acidity. - 1.1 Genesis of Acid Precipitation. - 2 Acidity and Alkalinity: Neutralizing Capacities. - 2.1 Transfer of Acidity (or Alkalinity) from Pollution Through the Atmosphere to Ecosystems. - 3 Acidification of Aquatic and Terrestrial Ecosystems. - 3.1 Disturbance of H+ Balance from Temporal or Spatial Decoupling of the Production and Mineralization of the Biomass. - 3.2 In Situ H+ Ion Neutralization in Lakes. - 3.3 Krug and Frink Revisited. - 4 Brønsted Acids and Lewis Acids: Pollution by Heavy Metals, as Influenced by Acidity. - 4.1 Cycling of Metals. - 4.2 Pb in Soils. - 5 Impact of Acidity on Ecology in Watersheds. - 5.1 Soils. - 5.2 Lakes. - 5.3 Nitrogen Saturation of Forests. - 6 Critical Loads. - 6.1 Critical Load Maps. - 6.2 Models for Critical Load Evaluation. - 7 Case Studies. - 7.1 Chemical Weathering of Crystalline Rocks in the Catchment Area of Acidic Ticino Lakes, Switzerland. - 7.2 Watershed Manipulation Project at Bear Brooks, Maine. - 8 Summary. - References. - 8 Redox-Driven Cycling of Trace Elements in Lakes / J. HAMILTON-TAYLOR and W. DAVISON. - 1 Introduction. - 2 Major Biogeochemical Cycles and Pathways. - 3 Iron and Manganese. - 3.1 Transformations and Cycling. - 3.2 Iron and Manganese Compounds as Carrier Phases. - 4 Sediment-Water Interface. - 4.1 Diffusive Flux from Sediments. - 4.2 Evidence of Little or No Diffusive Efflux from Sediments. - 4.3 Transient Remobilization. - 4.4 Diffusive Flux into Sediments. - 5 Pathways Involving Redox Reactions Directly: Case Studies. - 5.1 Arsenic. - 5.2 Chromium. - 5.3 239,240Pu. - 5.4 Selenium 6 Pathways Involving Redox Reactions Indirectly: Case Studies. - 6.1 137Cs. - 6.2 Stable Pb, 210Pb, and 210Po. - 6.3 Zinc. - 7 Summary and Conclusions. - References. - 9 Comparative Geochemistry of Marine Saline Lakes / F. T. MACKENZIE, S. VINK, R. WOLLAST, and L. CHOU. - 1 Introduction. - 2 General Characteristics of Marine Saline Lakes. - 3 Comparative Sediment-Pore-Water Reactions. - 3.1 Mangrove Lake, Bermuda. - 3.2 Solar Lake, Sinai. - 4 Conclusions. - References. - 10 Organic Matter Accumulation Records in Lake Sediments / P. A. MEYERS and R. ISHIWATARI. - 1 Introduction. - 1.1 Significance of Organic Matter in Lake Sediments. - 1.2 Origins of Organic Matter to Lake Sediments. - 1.3 Alterations of Organic Matter During Deposition. - 1.4 Similarities and Differences Between Organic Matter in Sediments of Lakes and Oceans. - 1.5 Dating of Lake-Sediment Records. - 2 Indicators of Sources and Alterations of Total Organic Matter in Lake Sediments. - 2.1 Source Information Preserved in C/N Ratios of Sedimentary Organic Matter. - 2.2 Source Information from Carbon-Stable Isotopic Compositions. - 2.3 Source Information from Nitrogen-Stable Isotopic Compositions. - 3 Origin and Alterations of Humic Substances. - 4 Sources and Alterations of Lipid Biomarkers. - 4.1 Alteration of Lipids During Deposition. - 4.2 Changes in Sources vs Selective Diagenesis. - 4.3 Effects of Sediment Grain Size on Geolipid Compositions. - 4.4 Source Records of Alkanes in Lake Sediments. - 4.5 Preserv

Note: Table of Contents: Prologue. - List of authors and participants. - I. RADIOCARBON AND ABSOLUTE CHRONOLOGIES. - Tree-ring 14C calibration at 10.000 BP / B. Kromer and B. Becker. - On flow model dating of stable isotope records from Greenland ice cores 7 S. J. Johnsen and W. Dansgaard. - The clay-varve based Swedish time scale and its relation to the Late Weichselian radiocarbon chronology / S. björck, I. Cato, L. Brunnberg, B. Strömberg. - A step towards an absolute time-scale for the Late-Glacial: annually laminated sediments from Soppensee (Switzerland) / A. F. Lotter. - B. Ammann, J. Beer, I. Hajdas, M. Sturm. - The late glacial-holocene transition in central Europe derived from isotope studies of laminated sediments from Lake Gościaź (Poland) / K. Rozanski, T. Goslar, M. Dulinski, T. Kuc, M. F. Pazdur, A. Walanus. - Younger Dryas oscillation - varve dated microstratigraphic, palynological and palaeomagnetic records from Lake Holzmaar, Germany / B. Zolitschka, B. Haverkamp, J. F. W. Negendank. - 230Th/234U and 14C ages obtained by mass spectrometry on corals from Barbados (West Indies), Isabela (Galapagos) and Mururoa (French Polynesia) / E. Bard, R. G. Fairbanks, M. Arnold, B. Hamelin. - II. COSMONUCLIDE PRODUCTION CHANGES DURING THE PAST. - Expected secular variations in the global terrestrial production rate of radiocarbon / D. Lal. - 10Be deposition at Vostok, Antarctica, during the last 50,000 years and its relationship to possible cosmogenic production variations during this period / G. M. Raisbeck, F. Yiou, J. Jouzel, J. R. Petit, N. I. Barkov, E. Bard. - 10Be peaks as time markers in polar ice cores / J. Beer, S. J. Johnsen, G. Bonani, R. C. Finkel, C. C. Langway, H. Oeschger, B. Stauffer, M. Suter, W. Woelfli. - Variation of geomagnetic field intensity from 8-60 Ky BP, Massif Central France / J. Salis and N. Bonhommet. - A geomagnetic calibration of the radiocarbon time-scale / A. Mazaud, C. Laj, E. Bard, M. Arnold, E. Tric. - III. CLIMATIC CHANGES DURING THE LAST DEGLACIATION. - The strength of the nordic heat pump / W. S. Broecker. - δ18O time-slice reconstruction of meltwater anomalies at Termination 1 in the North Atlantic between 50 and 80°N / M. Sarnthein, E. Jansen, M. Arnold, J. C. Duplessy, H. Erlenkeuser, A. Flatoy, T. Veum, E. Vogelsang, M. S. Weinelt. - A new method to reconstruct sea surface salinity: application to the North Atlantic ocean during the Younger Dryas / J.-C. Duplessy, L. Labeyrie, A. Juillet-Leclerc, J. Duprat. - The determination of past ocean-atmosphere radiocarbon differences / J. R. Southon, D. E. Nelson, J. S. Vogel. - The last deglaciation in Antarctica: further evidence of a "Younger Dryas" type climatic event / J. Jouzel, J. R. Petit, N. I. Barkov, J. M. Barnola, J. Chappellaz, P. Ciais, V. M. Kotkyakov, C. Lorius, V. N. Petrov, D. Raynaud, C. Ritz. - Possible ice-core evidence for a fresh melt water cap over the Atlantic ocean in the early Holocene / D. A. Fisher. - Climatic changes in Northwest Africa during the last deglaciation (16-7 ka BP) / F. Gasse, J. Ch. Fontes. - The palynological expression and timing of the Younger Dryas event - Europe versus Eastern North America / D. M. Peteet.

Note: Table of Contents: 1 The Solid Phase of Marine Sediments / DIETER K. FÜTTERER 1.1 Introduction 1.2 Sources and Components of Marine Sediments 1.2.1 Lithogenous Sediments 1.2.2 Biogenous Sediments 1.2.3 Hydrogenous Sediments 1.3 Classification of Marine Sediments 1.3.1 Terrigenous Sediments 1.3.2 Deep-Sea Sediments 1.4 Global Patterns of Sediment Distribution 1.4.1 Distribution Patterns of Shelf Sediments 1.4.2 Distribution Patterns of Deep-Sea Sediments 1.4.3 Distribution Patterns of Glay Minerals 1.4.4 Sedimentation Rates 2 Geophysical Perspectives in Marine Sediments 2.1 Physical Properties of Marine Sediments / MONIKA BREITZKE 2.1.1 Introduction 2.1.2 Porosity and Wet Bulk Density 2.1.2.1 Analysis by Weight and Volume 2.1.2.2 Gamma Ray Attenuation 2.1.2.3 Electrical Resistivity (Galvanic Method) 2.1.2.4 Electrical Resistivity (Inductive Method) 2.1.3 Permeability 2.1.4 Acoustic and Elastic Properties 2.1.4.1 Biot-Stoll Model 2.1.4.2 Full Waveform Ultrasonic Gore Logging 2.1.5 Sediment Classification 2.1.5.1 Full Waveform Gore Logs as Acoustic Images 2.1.5.2 P-and S-Wave Velocity, Attenuation, Elastic Moduli and Permeability 2.1.6 Sediment Echosounding 2.1.6.1 Synthetic Seismograms 2.1.6.2 Narrow-Beam Parasound Echosounder Recordings 2.2 Sedimentary Magnetism / ULRICH BLEIL 2.2.1 Introduction 2.2.2 Biogenie Magnetic Minerals in Marine Sediments 2.2.3 Reduction Diagenesis of Magnetic Minerals in Marine Environments 3 Quantification of Early Diagenesis: Dissolved Constituents in Marine Pore Water / HORST D. SCHULZ 3.1 Introduction: How to Read Pore Water Concentration Profiles 3.2 Calculation of Diffusive Fluxes and Diagenetic Reaction Rates 3.2.1 Steady State and Non-Steady State Situations 3.2.2 The Steady State Situation and Fick's First Law of Diffusion 3.2.3 Quantitative Evaluation of Steady State Concentration Profiles 3.2.4 The Non-Steady State Situation and Fick's Second Law of Diffusion 3.2.5 The Primary Redox-Reactions: Degradation of Organic Matter 3.3 Sampling of Pore Water for Ex-Situ Measurements 3.3.1 Obtaining Sampies of Sediment for the Analysis of Pore Water 3.3.2 Pore Water Extraction from the Sediment 3.3.3 Storage, Transport and Preservation of Pore Water 3.4 Analyzing Constituents in Pore Water, Typical Profiles 3.5 In-Situ Measurements 3.6 Influence of Bioturbation, Bioirrigation, and Advection 4 Organic Matter: The Driving Force for Early Diagenesis / JÜRGEN RULLKÖTTER 4.1 The Organic Carbon Cycle 4.2 Organic Matter Accumulation in Sediments 4.2.1 Productivity Versus Preservation 4.2.2 Primary Production of Organic Matter and Export to the Ocean Bottom 4.2.3 Transport of Organic Matter through the Water Column 4.2.4 The Influence of Sedimentation Rate on Organic Matter Burial 4.2.5 Allochthonous Organic Matter in Marine Sediments 4.3 Early Diagenesis 4.3.1 The Organic Carbon Content of Marine Sediments 4.3.2 Chemical Composition of Biomass 4.3.3 The Principle of Selective Preservation 4.3.4 The Formation of Fossil Organic Matter and its Bulk Composition 4.3.5 Early Diagenesis at the Molecular Level 4.3.6 Biological Markers (Molecular Fossils) 4.4 Organic Geochemical Proxies 4.4.1 Total Organic Carbon and Sulfur 4.4.2 Marine Versus Terrigenous Organic Matter 4.4.3 Molecular Paleo-Seawater Temperature and Climate Indicators 4.5 Analytical Techniques 4.5.1 Sam pie Requirements 4.5.2 Elemental and Bulk Isotope Analysis 4.5.3 Rock-Eval Pyrolysis and Pyrolysis Gas Chromatography 4.5.4 Organic Petrography 4.5.5 Bitumen Analysis 4.6 The Future of Marine Geochemistry of Organic Matter 5 Bacteria and Marine Biogeochemistry / Bo BARKER JORGENSEN 5.1 Role of Microorganisms 5.1.1 From Geochemistry to Microbiology - and back 5.1.2 Approaches in Marine Biogeochemistry 5.2 Life and Environments at Small Scale 5.2.1 Hydrodynamics of Low Reynolds Numbers 5.2.2 Diffusion at Small Scale 5.2.3 Diffusive Boundary Layers 5.3 Regulation and Limits of Microbial Processes 5.3.1 Substrate Uptake by Microorganisms 5.3.2 Temperature as a Regulating Factor 5.3.3 Other Regulating Factors 5.4 Energy Metabolism of Prokaryotes 5.4.1 Free Energy 5.4.2 Reduction-Oxidation Processes 5.4.3 Relations to Oxygen 5.4.4 Definitions of Energy Metabolism 5.4.5 Energy Metabolism of Microorganisms 5.4.6 Chemolithotrophs 5.4.7 Respiration and Fermentation 5.5 Pathways of Organic Matter Degradation 5.5.1 Depolymerization of Macromolecules 5.5.2 Aerobic and Anaerobic Mineralization 5.5.3 Depth Zonation of Oxidants 5.6 Methods in Biogeochemistry 5.6.1 Incubation Experiments 5.6.2 Radioactive Tracers 5.6.3 Example: Sulfate Reduction 5.6.4 Specific Inhibitors 5.6.5 Other Methods 6 Early Diagenesis at the Benthic Boundary Layer: Oxygen and Nitrate in Marine Sediments / CHRISTIAN HENSEN AND MATTHIAS ZABEL 6.1 Introduction 6.2 Oxygen and Nitrate Distribution in Seawater 6.3 The Role of Oxygen and Nitrate in Marine Sediments 6.3.1 Respiration and Redox Processes 6.3.1.1 Nitrification and Denitrification 6.3.1.2 Coupling of Oxygen and Nitrate to other Redox Pathways 6.3.2 Determination of Consumption Rates and Senthic Fluxes 6.3.2.1 Fluxes and Concentration Profiles Determined by In-Situ Devices 6.3.2.2 Ex-Situ Pore Water Data from Deep-Sea Sediments 6.3.2.3 Determination of Denitrification Rates 6.3.3 Oxic Respiration, Nitrification and Denitrification in Different Marine Environments 6.3.3.1 Quantification of Rates and Fluxes 6.3.3.2 Variation in Different Marine Environments: Case Studies 6.4 Summary 7 The Reactivity of Iron / RALF R. HAESE 7.1 Introduction 7.2 Pathways of Iron Input to Marine Sediments 7.2.1 Fluvial Input 7.2.2 Aeolian Input 7.3 Iron as a Limiting Nutrient for Primary Productivity 7.4 The Early Diagenesis of Iron in Sediments 7.4.1 Dissimilatary Iran Reductian 7.4.2 Solid Phase Ferric Iron and its Bioavailability 7.4.2.1 Properties of Iron Oxides 7.4.2.2 Bioavailability of Iron Oxides 7.4.2.3 Bioavailability of Sheet Silicate Sound Ferric lron 7.4.3 Iron and Manganese Redax Cycles 7.4.4 Iron Reactivity towards S, O2, Mn, NO3, P, HCO3, and Si-AI 7.4.4.1 lron Reduction by HS and Ligands 7.4.4.2 Iron Oxidation by O2, NO3, and Mn4+ 7.4.4.3 Iron-Sound Phosphorus 7.4.4.4 The Formation of Siderite 7.4.4.5 The Formation of lron Searing Aluminosilicates 7.4.5 Discussion: The Importance of Fe-and Mn-Reactivity in Various Enyironments 7.5 The Assay for Ferric and Ferrous Iron 8 Sulfate Reduction in Marine Sediments / SABINE KASTEN AND BO BARKER JØRGENSEN 8.1 Introduction 8.2 Sulfate Reduction and the Degradation of Organic Matter 8.3 Biotic and Abiotic Processes Coupled to Sulfate Reduction 8.3.1 Pyrite Formation 8.3.2 Effects of Sulfate Reduction on Sedimentary Solid Phases 8.4 Determination of Sulfate Reduction Rates 9 Marine Carbonates: Their Formation and Destruction / RALPH R. SCHNEIDER, HORST D. SCHULZ AND CHRISTIAN HENSEN 9.1 Introduction 9.2 Marine Environments of Carbonate Production and Accumulation 9.2.1 Shallow-Water Carbonates 9.2.2 Pelagic Calcareous Sediments 9.3 The Calcite-Carbonate-Equilibrium in Marine Aquatic Systems 9.3.1 Primary Reactions of the Calcite-Carbonate-Equilibrium with Atmospheric Contact in Infinitely Diluted Solutions 9.3.2 Primary Reactions of the Calcite-Carbonate-Equilibrium without Atmospheric Contact 9.3.3 Secondary Reactions of the Calcite-Carbonate-Equilibrium in Seawater 9.3.4 Examples for Calculation of the Calcite-Carbonate-Equilibrium in Ocean Waters 9.4 Carbonate Reservoir Sizes and Fluxes between Particulate and Dissolved Reservoirs 9.4.1 Production Versus Dissolution of Pelagic Carbonates 9.4.2 Inorganic and Organic Carbon Release trom Deep-Sea Sediments 10 Influences of Geochemical Processes on Stable Isotope Distribution in Marine Sediments / TORSTEN SICKERT 10.1 Introduction 10.2 Fundamentals 10.2.1 Principles of Isotopic Fractionation 10.2.2 Analytical Procedures 10.3 Geochemicallnfluences on 18O/16O Ratios 10.3.1 δ18O of Seawater 10.3.2 δ18O in Marine Carbonates 10.4 Geochemical Influences on 13C/12C Ratios 10.4.1

Note: Contents: 1 Introduction. - 2 Time Scales and Ages. - 2.1 Absolute Time Scales. - 2.2 Relative Time Scales. - 2.3 Physical and Chemical Time Scales. - 3 Selection, Collection, Packing, Storage, Transport,and Description of the Samples. - 3.1 Selection and Collection of the Samples. - 3.2 Packing, Storage, and Transport of the Samples. - 3.3 Sample Description. - 4 Treatment and Interpretation of the Raw Data. - 4.1 Suitability of a Sample for Dating and Reliabilityof the Dates. - 4.1.1 Soft-Rock Dating. - 4.1.2 Hard-Rock Dating. - 4.1.3 Isotope Geochemistry. - 4.2 Mathematical Evaluation of Physical and Chemical Age Data. - 4.2.1 Rules for Simple Calculations with the Dating Results; Statistical Tests. - 4.2.2 Comparison of Age Values. - 4.2.3 Numerical and Graphical Evaluation of Age Values. - 4.3 Publication of the Age Values. - 5 Physical Dating Methods. - 5.1 Principles. - 5.2 Sample Treatment and Measurement Techniques. - 5.2.1 Sample Treatment. - 5.2.1.1 Hard-Rock Samples. - 5.2.1.2 Soft-Rock Samples. - 5.2.2 Radioactivity Measurements: Decay Counting Methods. - 5.2.2.1 Gas-Filled Proportional and Geiger-Müller Counters. - 5.2.2.2 Scintillation Counters. - 5.2.2.3 Semiconductor Detectors. - 5.2.3 Measurement of Stable and Long-Lived Isotopes: Atom Counting Methods. - 5.2.3.1 Mass Spectrometry (MS). - 5.2.3.2 Accelerator Mass Spectrometry (AMS). - 5.2.3.3 Resonance-Ionization Spectrometry (RIS). - 5.2.4 Other Analytical Techniques. - 5.2.4.1 Isotope Dilution Analysis (ID). - 5.2.4.2 Neutron Activation Analysis (NAA). - 5.2.4.3 Flame Photometry, Atomic Absorption Spectrometry (AA) and Inductive Coupled Plasma Analysis (ICP). - 5.2.4.4 Ion-Microprobe (IMP) and Laser Microprobe Mass Analysis (LAMMA). - 5.2.4.5 X-Ray Fluorescence Analysis (XRF) . - 6 Radiometric Dating Methods. - 6.1 Parent/Daughter Isotope Ratios as a Geochronometer. - 6.1.1 Potassium/Argon (40K/40Ar) Method. - 6.1.1.1 Conventional Potassium/Argon (40K/40Ar) Method. - 6.1.1.2 Argon/Argon (39Ar/40Ar) Method. - 6.1.2 Potassium/Calcium (40K/40Ca) Method. - 6.1.3 Rubidium/Strontium (87Rb/87Sr) Method. - 6.1.4 Lanthanum/Cerium (138La/138Ce) Method. - 6.1.5 Lanthanum/Barium (138La/138Ba) Method. - 6.1.6 Samarium/Neodymium (147Sm/143Nd) Method. - 6.1.7 Lutetium/Hafnium (176Lu/176Hf) Method. - 6.1.8 Rhenium/Osmium (187Re/187Os) Method. - 6.1.9 Uranium/Thorium/Lead Methods (238U/206Pb, 235U/207Pb and 232Th/208Pb Methods). - 6.1.10 Common Lead Method. - 6.1.11 Lead/Lead (207Pb/206Pb) Method. - 6.1.12 Chemical Lead Method. - 6.1.13 Lead/Alpha Method (Larsen Method). - 6.1.14 Krypton/Krypton (Krsf/Krn) Method. - 6.1.15 Xenon Methods. - 6.1.15.1 Uranium/Xenon (U/Xesf) Method. - 6.1.15.2 Xenon/Xenon (Xesf/Xen) Method. - 6.2 Dating with Cosmogenic Radionuclides. - 6.2.1 Radiocarbon (14C) Method. - 6.2.2 Tritium (3H) Methods. - 6.2.2.1 Classical Tritium (3H) Method. - 6.2.2.2 Tritium/Helium-3 (3H/3He) and Helium-3 (3He)Methods. - 6.2.3 Beryllium-10 (10Be) Method. - 6.2.4 Sodium-22 (22Na) Method. - 6.2.5 Aluminium-26 (26Al) Method. - 6.2.6 Silicon-32 (32Si) Method. - 6.2.7 Chlorine-36 (36Cl) Method. - 6.2.8 Argon-39 (39Ar) Method. - 6.2.9 Calcium-41 (41Ca) Method. - 6.2.10 Manganese-53 (53Mn) Method. - 6.2.11 Krypton-81 (81Kr) Method. - 6.2.12 Iodine-129 (129I) Method. - 6.2.13 Aluminium-26/Beryllium-10 (26Al/10Be) Method. - 6.2.14 Beryllium-10/Chlorine-36 (10Be/36Cl) Method. - 6.3 Dating Based on Radioactive Disequilibrium of the Uranium, Thorium, and Protactinium Decay Series: The Uranium/Thorium/Protactinium Methods. - 6.3.1 230Th/234U Method. - 6.3.2 231Pa/235U Method. - 6.3.3 231Pa/230Th Method. - 6.3.4 234U/238U Method. - 6.3.5 230Th-excess Method. - 6.3.6 231Pa-excess Method. - 6.3.7 230Th-excess/232Th or 230Th/238U Method. - 6.3.8 231Pa-excess/23Th-excess Method. - 6.3.9 234Th-excess Method. - 6.3.10 228Th-excess/232Th Method. - 6.3.11 Dating Methods Based on Supported 226Ra and Unsupported 226Ra. - 6.3.12 224Ra and 228Ra Methods. - 6.3.13 210Pb Method. - 6.3.14 Uranium/Helium (U/He) Method. - 6.3.15 Radium/Radon Method. - 6.4 Age Determination Using Radiation Damage. - 6.4.1 Thermoluminescence (TL) Method. - 6.4.2 Optical Dating (OSL) Method. - 6.4.3 Electron Spin Resonance (ESR or EPR) Method. - 6.4.4 Exo-Electron Method (TSEE Method). - 6.4.5 Thermally Stimulated Current (TSC) Method. - 6.4.6 Differential Thermoanalysis (DTA). - 6.4.7 Fission Track Method (FT Method). - 6.4.8 Alpha-Recoil Track Method. - 6.4.9 Age Determination Using Pleochroic Haloes. - 6.5 Dating Meteorites and Lunar Rocks. - 6.5.1 Introduction. - 6.5.2 Sample Preparation and Measurement. - 6.5.3 Formation Interval. - 6.5.4 Solidification Ages. - 6.5.5 Gas Retention Ages. - 6.5.6 Cosmic Ray Exposure Ages. - 6.5.7 Terrestrial Ages of Meteorites. - 7 Chronostratigraphic Methods Using Global Time Markers. - 7.1 Paleomagnetic Dating Methods. - 7.2 Chronostratigraphic Time-Scale Using [Delta] 18O Values. - 7.3 Chronostratigraphic Time-Scale Using [Delta] 34S and [Delta] 13C Values and 87Sr/86Sr Ratios. - 7.4 Artificial Radionuclides as Time Markers. - 7.5 Geochemical Time Markers. - 7.6 Chemical Pollution as Time Markers. - 8 Chemical Dating Methods. - 8.1 Amino-Acid Racemization Method (AAR). - 8.2 Amino-Acid Degradation Method. - 8.3 Dating of Bones Using the Nitrogen or Collagen Content. - 8.4 Chemical Electron-Spin-Resonance (ESR) Dating. - 8.5 Molecular (Protein and DNA) Clocks. - 8.6 Obsidian Hydration Method. - 8.7 Dating of Man-Made Glass. - 8.8 Calcium Diffusion and Cation-Ratio Methods. - 8.9 Dating of Bones Using the Fluorine or Uranium Content. - 9 Phanerozoic Time-Scale. - 9.1 Objectives and History of Geochronolgy. - 9.2 Geological Time-Scales. - 9.3 The Future. - 10 Literature. - 10.1 Journals that Frequently Publish Geochronological Papers. - 10.2 Geochronology Textbooks. - 10.3 References. - Acknowledgments. - Appendix A: Geochronology Glossary. - Appendix B: Radioactive and Stable Isotopes in Geochronology. - Appendix C: List of Addresses. - Subject Index. - Foldout Table: Dating Methods, Ranges, and Materials.

Note: Inhaltsverzeichnis: 1 Einleitung. - 1.1 Definition von Paläo- und Archäomagnetismus. - 1.2 Einordnung der Methoden innerhalb der Geophysik. - 1.3 Aussagemöglichkeiten über den früheren Zustand der Erde. - 1.4 Wechselbeziehungen mit Nachbardisziplinen. - 1.5 Maßsysteme, Einheiten. - 2 Methodische Grundlagen. - 2.1 Eigenschaften und Ursprung des Erdmagnetfeldes. - 2.1.1 Definition der Kenngrößen des Erdmagnetfeldes X, Y, H, Z, F, D, I und ihre Verknüpfungen. - 2.1.2 Ideales und reales Erdmagnetfeld. - 2.1.3 Nichtdipolanteile in Raum und Zeit (Säkularvariation). - 2.1.4 Kugelfunktionsentwicklung und zeitliche Änderungen der Feldgrößen. - 2.1.5 Theorien zum Ursprung des erdmagnetischen Feldes. - 2.2 Gesteinsmagnetische Grundlagen. - 2.2.1 Diamagnetismus, Paramagnetismus, Ferromagnetismus, Antiferromagnetismus und Ferrimagnetismus. - 2.2.1.1 Definition der Magnetisierung und des Diamagnetismus. - 2.2.1.2 Paramagnetismus. - 2.2.1.3 Ferromagnetismus. - 2.2.1.4 Antiferromagnetismus. - 2.2 A.5 Ferrimagnetismus. - 2.2.2 Definition magnetischer Kenngrößen (k, Hc, Js, ..) der Ferro(i)magnetika. - 2.2.3 Anisotropie der Suszeptibilität. - 2.2.4 Selbstentmagnetisierung und magnetische Brechung. - 2.2.5 Kristallanisotropie und Magnetostriktion. - 2.2.6 SD-PSD-MD-Teilchen und ihre typischen Eigenschaften und Unterscheidungsmerkmale. - 2.3 Magnetische und strukturelle Eigenschaften natürlicher Ferrite. - 2.3.1 Magnetit. - 2.3.2 Ternäres System (FeO-TiO2-Fe2O3) und die Mischreihe der Titanomagnetite. - 2.3.3 Hämatit und Maghemit. - 2.3.4 Mischreihe der Hämo-Ilmenite. - 2.3.5 Nichtstöchiometrische Minerale im ternären System der Ti-Oxide, Titanomaghemite. - 2.3.6 Pyrrhotit und Greigit. - 2.3.7 Goethit. - 2.3.8 Methoden zur Identifikation von ferro(i)magnetischen Mineralphasen. - 2.4 Die Typen der remanenten Magnetisierung und ihre spezifischen Eigenschaften. - 2.4.1 Natürliche remanente Magnetisierung NRM. - 2.4.2 Thermoremanente Magnetisierung TRM. - 2.4.3 Partielle thermoremanente Magnetisierung PTRM. - 2.4.4 Chemische Remanenz CRM. - 2.4.5 Sedimentationsremanenz DRM. - 2.4.6 Postsedimentationsremanenz PDDRM. - 2.4.7 Piezoremanenz PRM. - 2.4.8 Viskose Remanenz VRM. - 2.4.9 Isothermale Remanenz IRM. - 2.4.10 Charakteristische Remanenz ChRM. - 2.4.11 Anhysteretische Remanenz ARM. - 2.4.12 Selbstumkehr einer remanenten Magnetisierung. - 2.4.13 Andere Remanenztypen. - 2.5 Typische magnetische Eigenschaften verschiedener Gesteine und archäologischer Materialien. - 2.5.1 Basalte und andere Ergußgesteine. - 2.5.2 Intrusivgesteine. - 2.5.3 Ganggesteine. - 2.5.4 Sandsteine. - 2.5.5 Tonsteine. - 2.5.6 Karbonatgesteine. - 2.5.7 Metamorphe Gesteine. - 2.5.8 Einfluß der Verwitterung. - 2.5.9 Sonstige Gesteine. - 2.5.10 Archäologisches Material. - 2.6 Verfahren zur Analyse einer remanenten Magnetisierung. - 2.6.1 Wechselfeldentmagnetisierung. - 2.6.2 Thermische Entmagnetisierung. - 2.6.3 Chemische Entmagnetisierung. - 2.6.4 Stoßwellenentmagnetisierung. - 2.6.5 Lowrie-Fuller-Test. - 2.6.6 Orthogonale Projektionen (Zijderveld-Diagramme) und Darstellung der Remanenzrichtungen im Schmidtschen Netz. - 2.6.7 Methode der Differenzvektoren. - 2.6.8 Methode der konvergierenden Großkreise. - 2.6.9 Mehrkomponentenanalyse. - 2.7 Alter einer Remanenz und radiometrische Alter. - 2.7.1 Faltungstest. - 2.7.2 Konglomerattest. - 2.7.3 Kontakttest. - 2.7.4 Thellier-Test. - 2.7.5 Reversal-Test. - 2.7.6 Beziehungen zwischen Remanenzalter und radiometrisch oder biostratigraphisch bestimmten Altern. - 2.8 Statistische Methoden zur Analyse von Remanenzrichtungen. - 2.8.1 Mittlere Richtungen und Fisher-Statistik. - 2.8.2 Fehlerfortpflanzung. - 2.8.3 Signifikanztests. - 2.8.4 Analyse und statistische Behandlung von Inklinationsdaten. - 2.9 Berechnung des virtuellen geomagnetischen Pols VGP und des virtuellen geomagnetischen Dipolmoments Mpal. - 2.9.1 VGP-Berechnung auf der Basis der Dipolhypothese. - 2.9.2 Statistische Behandlung der Pollagen. - 2.9.3 Berechnung des virtuellen Dipolmoments Mpal. - 2.10 Methoden zur Bestimmung der Paläointensität. - 2.10.1 Methode unter Verwendung der TRM (Methode Thellier). - 2.10.2 Methode unter Verwendung der ARM (Methode Shaw). - 2.10.3 Methode unter Verwendung der DRM. - 2.11 Probenentnahme und Meßgeräte im Paläomagnetismus und Archäomagnetismus. - 2.11.1 Kriterien für die Auswahl von Beprobungsorten. - 2.11.2 Statistische Minimalanforderungen. - 2.11.3 Bestimmung der horizontalen Referenzebene und einer Referenzrichtung. - 2.11.4 Entnahme von orientierten Handstücken. - 2.11.5 Entnahme von Kernen mit Diamantbohrern und Kolbenloten. - 2.11.6 Probenentnahme bei archäologischen Fundorten. - 2.11.7 Laborgeräte zur Messung magnetischer Parameter. - 2.11.7.1 Messung der remanenten Magnetisierung. - 2.11.7.2 Messung der Suszeptibilität und ihrer Anisotropie. - 2.11.7.3 Messung der Koerzitivkraft Hc. - 2.11.7.4 Messung der Curie-Temperatur Tc. - 2.11.8 Geräte zur Entmagnetisierung von Proben. - 2.11.8.1 Wechselfeldentmagnetisierung. - 2.11.8.2 Thermische Entmagnetisierung. - 2.11.8.3 Chemische Entmagnetisierung. - 2.11.8.4 Spulensysteme für die Kompensation des erdmagnetischen Feldes. - 2.11.8.5 Magnetische Abschirmung. - 2.12 Mikroskopie und Mößbauer-Spektroskopie. - 2.12.1 Erzmikroskopie: Dünnschliffe, Anschliffe. - 2.12.2 Rasterelektronenmikroskopie REM. - 2.12.3 Transmissionselektronenmikroskopie TEM. - 2.12.4 Mößbauer-Spektroskopie. - 3 Ergebnisse des Paläo- und Archäomagnetismus. - 3.1 Geometrie des Erdmagnetfeldes. - 3.1.1 Hypothese vom axialen geozentrischen Dipol. - 3.1.2 Archäosäkularvariation. - 3.1.3 Quartäre Säkularvariation. - 3.1.4 Paläosäkularvariation. - 3.1.5 Exkursionen des Erdmagnetfeldes. - 3.2 Polwanderungskurven größerer Kontinentalschollen. - 3.2.1 Scheinbare oder echte Polwanderung?. - 3.2.2 Scheinbare Polwanderungskurven der großen Kontinentalschollen. - 3.2.3 Scheinbare Polwanderungskurven von Mikroplatten. - 3.3 Feldumkehr und Polaritätszeitskalen. - 3.3.1 Selbstumkehr der Remanenz oder Feldumkehr?. - 3.3.2 Polaritätszeitskala der letzten 0.7 Ma. - 3.3.3 Polaritätszeitskala der letzten 5 Ma. - 3.3.4 Polaritätszeitskala der letzten 150 Ma. - 3.3.5 Polaritätszeitskalen der früheren geologischen Vergangenheit. - 3.3.6 Feldverhalten während einer Feldumkehr. - 3.3.7 Statistik der Feldumkehrungen. - 3.4 Paläointensität des Erdmagnetfeldes. - 3.4.1 Ergebnisse von archäologischen Proben. - 3.4.2 Paläointensitäten der geologischen Vergangenheit. - 3.4.3 Paläointensität während einer Feldumkehr. - 4 Anwendung des Paläomagnetismus auf geologische, petrologische und archäologische Fragestellungen. - 4.1 Anwendungen in der Geologie und der Tektonik. - 4.1.1 Paläorekonstruktion von Kontinentverteilungen. - 4.1.2 Paläobreitenbestimmungen von Krustenblöcken. - 4.1.3 Nachweis von Rotationsbewegungen. - 4.1.4 Altersbestimmung mit Hilfe der scheinbaren Polwanderungskurven. - 4.1.5 Datierung mit der Magnetostratigraphie. - 4.2 Gesteinsmagnetische Untersuchungen. - 4.2.1 Suszeptibilität und Magnetitgehalt. - 4.2.2 Anisotropie der magnetischen Suszeptibilität. - 4.2.3 Messung magnetischer Eigenschaften bei tiefen Temperaturen. - 4.2.4 Koenigsbergerscher Q-Faktor. - 4.2.5 Js/T-Kurven zur Identifikation von ferro(i)magnetischen Mineralien. - 4.2.6 IRM-Erwerbskurven und Entmagnetisierung der IRMs mit Wechselfeldern und thermisch. - 4.3 Anwendungen in der Archäologie. - 4.3.1 Datierung mit Hilfe von Standardkurven der Inklination und Deklination. - 4.3.2 Rekonstruktion archäologischer Objekte. - 5 Bibliographie. - 5.1 Gesteinsmagnetismus, Mineralogie. - 5.2 Paläomagnetismus und Archäomagnetismus. - 5.3 Zitierte Literatur . - Anhang. - Programme. - Sachverzeichnis.

Note: Contents Observed Climatic Variability: Time Dependence / J. M. WALLACE Observed Climatic Variability: Spatial Structure / J. M. WALLACE Predictability of the Atmosphere and Oceans: From Days to Decades / T. N. PALMER Mechanisms for Decadal-to-Centennial Climate Variability / E. S. SARACHIK, M. WINTON and F. L. YIN Long-Term Coordinated Changesin the Convective Activity of the North Atlantic / R. DICKSON, J. LAZIER, J. MEINCKE and P. RHINES Mechanism for Decadal Climate Variability / M. LATIF, A. GROTZNER, M. MUNNICH, E. MAIER-REIMER, S. VENZKE and T. P. BARNETTA The Climate Response to the Changing Greenhouse Gas Concentration in the Atmosphere / L. BENGTSSON Analysis of Thermohaline Feedbacks / J. MAROTZKE An Overview of Century Time-Scale Variability in the Climate System: Observations and Models / T. F. STOCKER Steady States and Variability in Oceanic Zonal Flows / D. OLBERS and C. VOLKER Spectral Methods: What They Can and Cannot Do for Climatic Time Series / M. GHIL and P. Yiou Subject Index List of Participants

Note: Contents: I INTRODUCTION. - 1 Ecosystem Response, Resistance, Resilience, and Recovery in Arctic Landscapes: Introduction / J. F. Reynolds and J. D. Tenhunen. - 1.1 Introduction. - 1.2 NRC Committee Report. - 1.3 The R4D Program. - 1.3.1 Objectives and Conceptual Framework. - 1.3.2 Program Implementation. - 1.3.3 Landscape Function. - 1.4 Summary. - References. - 2 Integrated Ecosystem Research in Northern Alaska, 1947-1994 / G. R. Shaver. - 2.1 Introduction. - 2.2 Early Days at NARL. - 2.3 The U.S. Tundra Biome Program. - 2.4 The Meade River RATE Program. - 2.5 Eagle Creek and Eagle Summit. - 2.6 The Arctic LTER Program at Toolik Lake. - 2.7 Other Studies In Alaska and Elsewhere. - 2.8 Summary and Prospects. - References. - 3 Disturbance and Recovery of Arctic Alaskan Vegetation / D. A. Walker. - 3.1 Introduction. - 3.2 Disturbance and Recovery. - 3.3Typical Disturbance and Recovery Patterns. - 3.3.1 Small Disturbed Patches. - 3.3.2 Contaminants. - 3.3.2.1 Hydrocarbon Spills. - 3.3.2.2 Seawater and Reserve-Pit Spills. - 3.3.3 Fire. - 3.3.4 Transportation Corridors. - 3.3.4.1 Bulldozed Tundra and Related Disturbances. - 3.3.4.2 Off-Road Vehicle Trails. - 3.3.4.2.1 Summer Travel. - 3.3.4.2.2 Winter Travel. - 3.3.4.3 Permanent Roads and Pads. - 3.3.4.4 Gravel Mines. - 3.3.4.5 Native Species in Revegetation of Gravel Pads and Mines. - 3.3.4.6 Road Dust. - 3.3.4.7 Roadside Impoundments. - 3.3.5 Cumulative Impacts. - 3.4 Conclusions. - References. - 4 Terrain and Vegetation of the Imnavait Creek Watershed / D. A. Walker and M. D. Walker. - 4.1 Introduction. - 4.2 Terrain. - 4.2.1 Glacial Deposits. - 4.2.2 Retransported Hillslope Deposits. - 4.2.3 Colluvial Basin Deposits. - 4.2.4 Floodplain Deposits. - 4.3 Vegetation. - 4.3.1 Flora. - 4.3.2 Vegetation Types. - 4.3.2.1 Lichen-Covered Rocks. - 4.3.2.2 Dry Heath. - 4.3.2.2.1 Exposed Sites. - 4.3.2.2.2 Snowbeds. - 4.3.2.3 Tussock Tundra. - 4.3.2.4 Riparian Areas. - 4.3.2.5 Mires. - 4.3.2.6 Beaded Ponds. - 4.4 West-Facing Toposequence. - 4.5 Terrain Sensitivity to Disturbance. - 4.6 Conclusions. - Appendix A. List of Plants for Imnavait Creek, Alaska. - References. - 5 Vegetation Structure and Aboveground Carbon and Nutrient Pools in the Imnavait Creek Watershed / S. C. Hahn, S. F. Oberbauer, R. Gebauer, N. E. Grulke, O. L. Lange, and J. D. Tenhunen. - 5.1 ntroduction. - 5.2 Description of Vegetation. - 5.3 Sampling Methods. - 5.3.1 Cover. - 5.3.2 Biomass and Nutrient Pools. - 5.4 Cover. - 5.5 Aboveground Biomass. - 5.5.1 Live Biomass. - 5.5.2 Photosynthetic Biomass. - 5.5.3 Lichen Biomass. - 5.5.4 Organic Litter. - 5.5.5 Watershed Patterns. - 5.6 Nutrient Pools. - 5.6.1 N and P in Heath Cryptogams. - 5.6.2 N and P in Communities. - 5.7 Discussion and Conclusions. - References. - II PHYSICAL ENVIRONMENT, HYDROLOGY, and TRANSPORT. - 6 Energy Balance and Hydrological Processes in an Arctic Watershed / L. Hinzmann, D. L. Kane, C. S. Benson, and K. R. Everett. - 6.1 Introduction. - 6.2 Radiation and Thermal Regimes. - 6.2.1 Surface Energy Balance. - 6.2.2 Snow Cover and Soil Thermal Regime. - 6.3 Hydrological Processes. - 6.3.1 Snowmelt. - 6.3.2 Plot and Basin Water Balance. - 6.3.3 Runoff and Basin Discharge. - 6.3.4 Precipitation, Evaporation, and Evapotranspiration. - 6.4 Energy Balance and Hydrology Models. - 6.4.1 Simulation of the Thermal Regime. - 6.4.2 Simulation of Snowmelt. - 6.4.3 Simulation of Catchment Runoff. - 6.5 Conclusions. - References. - 7 Shortwave Reflectance Properties of Arctic Tundra Landscapes / A. S. Hope and D. A. Stow. - 7.1 Introduction. - 7.2 Shortwave Reflectance Studies in Arctic Environments. - 7.2.1 Environmental Considerations. - 7.2.2 Radiometric Data. - 7.2.3 Image Data. - 7.3 Spectral Reflectance. - 7.3.1 Aboveground Biomass. - 7.3.2 Vegetation Composition. - 7.3.3 Landscape Patterns. - 7.3.4 Effects of Dust Deposition. - 7.4 Albedo. - 7.4.1 Undisturbed Tussock Tundra. - 7.4.2 Effects of Dust Deposition. - 7.5 Conclusions. - References. - 8 Isotopic Tracers for Investigating Hydrological Processes / L. W. Cooper, I. L. Larsen, C. Solis, J. M. Grebmeier, C. R. Olsen, D. K. Solomon, and R. B. Cook. - 8.1 Introduction. - 8.1.1 Units. - 8.1.2 Conservative vs Nonconservative Isotopes. - 8.2 Nonconservative Tracers. - 8.3 Sulfur-35. - 8.4 Oxygen-18. - 8.4.1 Oxygen-18 Content of Snowpack. - 8.4.2 Oxygen-18 Content of Imnavait Creek. - 8.4.3 Oxygen-18 Content of Soil Moisture. - 8.4.4 Covariance of Oxygen-18 and Deuterium in Watershed Compartments. - 8.4.5 Covariance of Oxygen-18 and Deuterium in Plant Water. - 8.5 Long-Lived Radioisotopes: Lead-210 and Cesium-137. - 8.5.1 Distribution of 137Cs on Tundra and in Lake Sediments. - 8.5.2 Cycling of 137Cs in Annual Berries. - 8.5.3 Distribution of 210Pb in Tundra. - 8.6 Conclusions. - References. - III NUTRIENT AND CARBON FLUXES. - 9 Surface Water Chemistry and Hydrology of a Small Arctic Drainage Basin / K. R. Everett, D. L. Kane, and L. D. Hinzman. - 9.1 Introduction. - 9.2 Watershed Instrumentation. - 9.3 Snowmelt Period. - 9.3.1 Snowmelt Hydrology. - 9.3.2 Snowmelt Chemistry . - 9.3.2.1 Overland Flow. - 9.3.2.2 Water Track Flow. - 9.3.2.3 Imnavait Creek Flow. - 9.4 Post Snowmelt Period. - 9.4.1 Atmospheric Inputs. - 9.4.1.1 Rainfall. - 9.4.1.2 Dry Deposition. - 9.4.1.3 Rime. - 9.4.2 Water Chemistry. - 9.4.2.1 Overland Flow. - 9.4.2.2 Active Layer Flow. - 9.4.2.3 Imnavait Creek Flow. - 9.5 Conclusions. - References. - 10 Nutrient Availability and Uptake by Tundra Plants / J. P. Schimel, K. Kielland, and F. S. Chapin III. - 10.1 Introduction. - 10.2 Controls on Mineralization and Nutrient Supply. - 10.2.1 Patterns of Nutrient Supply in the Soil. - 10.2.2 Patterns of Mineralization. - 10.2.3 Controls on N and P Mineralization. - 10.2.4 Controls on Decomposition and Mineralization. - 10.2.4.1 Temperature. - 10.2.4.1.1 Enzyme Activities. - 10.2.4.1.2 Microbial Activity at Low Temperatures. - 10.2.4.1.3 Freeze-Thaw Events. - 10.2.4.2 Effects of Low Oxygen on Microbial Activity and Mineralization. - 10.2.4.3 Substrate Quality. - 10.3 Fate of Available Nutrients. - 10.3.1 Microbial Nutrient Uptake and Competition with Plants. - 10.3.2 Plant Uptake. - 10.3.2.1 Soil Factors Controlling Nutrient Absorption. - 10.3.2.2 Rooting Strategies. - 10.3.2.3 Uptake Characteristics of Tundra Plants. - 10.3.2.4 Retranslocation vs Current Uptake. - 10.4 Disturbances. - 10.4.1 Vehicle Tracks. - 10.4.2 Road Dust. - 10.4.3 Gray Water. - 10.4.4 Climate Change. - References. - 11 Landscape Patterns of Carbon Dioxide Exchange in Tundra Ecosytems / S. F. Oberbauer, W. Cheng, C. T. Gillespie, B. Ostendorf, A. Sala, R. Gebauer, R. A. Virginia, and J. D. Tenhunen. - 11.1 Introduction. - 11.2 Methods. - 11.2.1 Community Types. - 11.2.2 Leaf Photosynthesis. - 11.2.3 Ecosystem Efflux. - 11.2.4 Ecosystem Net CO2 Exchange. - 11.3 CO2 Uptake. - 11.3.1 Factors Affecting CO2 Uptake. - 11.3.1.1 Light. - 11.3.1.2 Temperature. - 11.3.1.3 Phenology. - 11.3.1.4 Water Availability. - 11.3.1.5 Nutrition. - 11.3.2 Landscape Patterns in Leaf Photosynthesis. - 11.4 CO2 Efflux. - 11.4.1 Factors Affecting CO2 Efflux. - 11.4.1.1 Live Plant Biomass. - 11.4.1.2 Soil Quality. - 11.4.1.3 Thaw Depth and Depth to Water Table. - 11.4.1.4 Soil Moisture. - 11.4.1.5 Soil Temperature. - 11.4.2 Landscape Patterns of CO2 Efflux. - 11.4.3 Daily and Seasonal Patterns of CO2 Efflux. - 11.4.4 Dust Deposition Effects on CO2 Efflux. - 11.5 Landscape Patterns in Net CO2 Exchange. - 11.6 Conclusions. - References. - 12 Control of Tundra Methane Emission by Microbial Oxidation / S. C. Whalen, W. S. Reeburgh, and C. E. Reimers. - 12.1 Introduction. - 12.2 Sampling Procedure. - 12.3 Results and Discussion. - 12.3.1 Methane Flux and Environmental Variables in Tundra and Taiga. - 12.3.2 Physiology, Controls, and Potential for Microbial CH4 Oxidation. - 12.3.3 Methane Oxidation by Tundra Soils in a Warmer Climate. - 12.4 Conclusions. - References. - 13 Dynamics of Dissolved and Particulate Car