ALBERT

Note: Contents: Preface. - 1 Introduction. - 1.1 Physical characteristics of the Antarctic. - 1.2 A brief history of Antarctic meteorology. - 1.3 The role of the Antarctic atmosphere in the global climate system. - 2 Observations and instrumentation. - 2.1 Observing in the Antarctic. - 2.2 Instruments for meteorological measurements. - 2.3 Automatic weather stations. - 2.4 Drifting buoys. - 2.5 Surface-based remote sensing. - 2.6 Satellites, space-based observing systems and ground stations. - 2.7 The station network and communications. - 2.8 Data sets and data centres. - 3 Physical climatology. - 3.1 Radiation. - 3.2 Temperature and humidity. - 3.3 Pressure, geopotential and wind. - 3.4 Clouds and precipitation. - 3.5 Sea ice and the Southern Ocean environment. - 4 The large-scale circulation of the Antarctic atmosphere. - 4.1 Introduction. - 4.2 The heat budget. - 4.3 Atmospheric circulation and the vorticity budget. - 4.4 The water vapour budget. - 4.5 Representation of the Antarctic atmosphere in general circulation models. - 5 Synoptic-scale weather systems and fronts. - 5.1 Introduction. - 5.2 The role of depressions. - 5.3 Depressions in the Antarctic and over the Southern Ocean. - 5.4 Climatology. - 5.5 Preparation of operational analyses and forecasts. - 5.6 Future research needs. - 6 Mesoscale systems and processes. - 6.1 Local wind systems. - 6.2 Internal gravity waves. - 6.3 The atmospheric boundary layer. - 6.4 Blowing snow. - 6.5 Mesocyclones. - 7 Climate variability and change. - 7.1 Variations in the historical climate record. - 7.2 Interactions with the tropical and mid-latitude circulation. - 7.3 Future climate predictions - Antarctica in a 'greenhouse' climate. - Appendix A: A chronological list of stations that have made multi-year meteorological observations in the Antarctic and on the sub-Antarctic islands. - Appendix B: A chronological list of automatic weather stations that have been deployed in the Antarctic and on the sub-Antarctic Islands. - References. - Index.

Note: Contents: Abstract. - Acknowledgements. - Introduction: Environmental change, paleolimnology, and diatoms. - Chapter 1: Diatoms as indicators of salinity and brine composition. - Chapter 2: Diatoms as indicators of lake trophic status. - References. - Plates. - Appendices. - Species Index.

Note: Contents: Preface to first edition. - Preface to second edition. - Acknowledgements. - 1 Some basic ideas. - 1.1 Planetary atmospheres. - 1.2 Equilibrium temperatures. - 1.3 Hydrostatic equation. - 1.4 Adiabatic lapse rate. - 1.5 Sandström's theorem. - Problems. - 2 A radiative equilibrium model. - 2.1 Black-body radiation. - 2.2 Absorption and emission. - 2.3 Radiative equilibrium in a grey atmosphere. - 2.4 Radiative time constants. - 2.5 The greenhouse effect. - Problems. - 3 Thermodynamics. - 3.1 Entropy of dry air. - 3.2 Vertical motion of saturated air. - 3.3 The tephigram. - 3.4 Total potential energy of an air column. - 3.5 Available potential energy. - 3.6 Zonal and eddy energy. - Problems. - 4 More complex radiation transfer. - 4.1 Solar radiation: its modification by scattering. - 4.2 Absorption of solar radiation by ozone. - 4.3 Absorption by single lines. - 4.4 Transmission of an atmospheric path. - 4.5 The integral equation of transfer. - 4.6 Integration over frequency. - 4.7 Heating rate due to radiative processes. - 4.8 Cooling by carbon dioxide emission from upper stratosphere and lower mesosphere. - 4.9 Bandmodels. - 4.10 Continuum absorption. - 4.11 Global radiation budget. - Problems. - 5 The middle and upper atmospheres. - 5.1 Temperature structure. - 5.2 Diffusive separation. - 5.3 The escape of hydrogen. - 5.4 The energy balance of the thermosphere. - 5.5 Photochemical processes. - 5.6 Breakdown of thermodynamic equilibrium. - Problems. - 6 Clouds. - 6.1 Cloud formation. - 6.2 The growth of cloud particles. - 6.3 The radiative properties of clouds. - 6.4 Radiative transfer in clouds. - Problems. - 7 Dynamics. - 7.1 Total and partial derivatives. - 7.2 Equations of motion. - 7.3 The geostrophic approximation. - 7.4 Cyclostrophic motion. - 7.5 Surfaces of constant pressure. - 7.6 The thermal wind equation. - 7.7 The equation of continuity. - Problems. - 8 Atmospberic waves. - 8.1 Introduction. - 8.2 Sound waves. - 8.3 Gravity waves. - 8.4 Rossby waves. - 8.5 The vorticity equation. - 8.6 Three dimensional Rossby-type waves. - Problems. - 9 Turbulence. - 9.1 The Reynolds number. - 9.2 Reynolds stresses. - 9.3 Ekman's solution. - 9.4 The mixing-length hypothesis. - 9.5 Ekman pumping. - 9.6 The spectrum of atmospheric turbulence. - Problems. - 10 The general circulation. - 10.1 Labaratory experiments. - 10.2 A symmetric circulation. - 10.3 Inertial Instability. - 10.4 Barotropic instability. - 10.5 Baroclinic instability. - 10.6 Sloping convection. - 10.7 Energy transport. - 10.8 Transport of angular momentum. - 10.9 The general circulation of the middle atmosphere. - Problems. - 11 Numerical modelling. - 11.1 A barotropic model. - 11.2 Baroclinic models. - 11.3 Primitive equation models. - 11.4 Inclusion of orography. - 11.5 Convection. - 11.6 Moist processes. - 11.7 Radiation transfer. - 11.8 Inclusion of clouds. - 11.9 Sub grid scale processes. - 11.10 Transfer across the surface. - 11.11 Forecasting models. - 11.12 Other models. - Problems. - 12 Global observation. - 12.1 What Observations are required?. - 12.2 ConventionaJ observations. - 12.3 Remote sounding from satellites. - 12.4 Remote sounding of atmospheric temperature. - 12.5 Remote measurements of composition. - 12.6 Other remote sounding observations. - 12.7 Observations from remote platforms. - 12.8 Achieving global coverage. - Problems. - 13 Atmospheric predictability and climatic change. - 13.1 Short-term predictability. - 13.2 Variations of climate. - 13.3 Atmospheric feedback processes. - 13.4 Different kinds of predictability. - 13.5 Jupiter's Great Red Spot. - 13.6 The challenge of climate research. - Problems. - Appendices. - 1 Some useful physical constants and data on dry air. - 2 Properties of water vapour. - 3 Atmospheric composition. - 4 Relation of geopotential to geometric height. - 5 Model atmospheres (0-105 km). - 6 Mean reference atmosphere (110- 500 km). - 7 The Planck function. - 8 Solar radiation. - 9 Absorption of solar radiation by oxygen and ozone. - 10 Spectral band information. - Bibliography. - References to works cited in the text. - Answers to problems and hints to their solution. - Index.

Note: CONTENTS: The Antarctic Research Series / Board of Associate Editors. - Preface / John C. Priscu. - Section 1: Physical and Hydrological Environment. - The Composite Glacial Erosional Landscape of the Northern McMurdo Dry Valleys: Implications for Antarctic Tertiary Glacial History / Michael L. Prentice, Johan Kleman, and Arjen P. Stroeven. - Solar Radiation in the McMurdo Dry Valleys, Antarctica / Gayle L. Dana, Robert A. Wharton Jr., and Ralph Dubayah. - Glaciers of the McMurdo Dry Valleys, Southern Victoria Land, Antarctica / Andrew G. Fountain, Gayle L. Dana, Karen J. Lewis, Bruce H. Vaughn, and Diane M. McKnight. - Geochemical Linkages Among Glaciers, Streams, and Lakes Within the Taylor Valley, Antarctica / W. Berry Lyons, Kathy A. Welch, Klaus Neumann, Jeffrey K. Toxey, Robyn McArthur, Changela Williams, Diane M. McKnight, and Daryl Moorhead. - Section 2: Stream Environment. - Hydrologic Processes Influencing Streamflow Variation in Fryxell Basin, Antarctica / Peter A. Conovitz, Diane M. McKnight, Lee H. MacDonald, Andrew G. Fountain, and Harold R. House. - Longitudinal Patterns in Algal Abundance and Species Distribution in Meltwater Streams in Taylor Valley, Southern Victoria Land, Antarctica / Diane M. McKnight, Alex Alger, Cathy M. Tate, Gordon Shupe, and Sarah Spaulding. - Primary Production Processes in Streams of the McMurdo Dry Valleys, Antarctica / Ian Howes and Clive Howard-Williams. - Modeling Nitrogen Transformations in Dry Valley Streams, Antarctica / Daryl L. Moorhead, Diane M. McKnight, and Cathy M. Tate. - Section 3: Lake Environment. - Physical Limnology of the McMurdo Dry Valley Lakes / Robert H. Spigel and John C. Priscu. - Optical Properties of the McMurdo Dry Valley Lakes, Antarctica / Clive Howard-Williams, Anne-Maree Schwarz, Ian Hawes, and John C. Priscu. - Cobalt Cycling and Fate in Lake Vanda / William J. Green, Donald E. Canfield, and Philip Nixon. - The Abundance of Ammonium-Oxidizing Bacteria in Lake Bonney, Antarctica, Determined by Immunofluorescence, PCR, and in Situ Hybridization / Mary A. Voytek, Bess B. Ward, and John C. Priscu. - Pigment Analysis of the Distribution, Succession, and Fate of Phytoplankton in the McMurdo Dry Valley Lakes of Antarctica / Michael P. Lizotte and John C. Priscu. - Fluorescence Quenching in Phytoplankton of the McMurdo Dry Valley Lakes (Antarctica): Implications for the Structure and Function of the Photosynthetic Apparatus / Patrick J. Neale and John C. Priscu. - Protozooplankton and Microzooplankton Ecology in Lakes of the Dry Valleys, Southern Victoria Land / Mark R. James, Julie A. Hall, and Johanna Laybourn-Parry. - Permanent Ice Covers of the McMurdo Dry Valleys Lakes, Antarctica: Liquid Water Contents / Christian H. Fritsen, Edward E. Adams, Christopher P. McKay, and John C. Priscu. - Permanent Ice Covers of the McMurdo Dry Valley Lakes, Antarctica: Bubble Formation and Metamorphism / Edward E. Adams, John C. Priscu, Christian H. Fritsen, Scott R. Smith, and Steven L. Brackman. - Section 4: Soil Environment. - The Soil Environment of the McMurdo Dry Valleys, Antarctica / Iain B.Campbell, Graeme G. C. Claridge, David I. Campbell, and Megan R. Balks. - Soil Biodiversity and Community Structure in the McMurdo Dry Valleys, Antarctica / Diana Wall Freckman and Ross A. Virginia. - Section 5: Summary. - Science and Environmental Management in the McMurdo Dry Valleys, Southern Victoria Land, Antarctica / Colin M. Harris. - The McMurdo Dry Valley Ecosystem: Organization, Controls, and Linkages / Daryl L. Moorhead and John C. Priscu. - Section 6: CDROM. - Digital Geospatial Datasets Pertaining to the McMurdo Dry Valleys of Antarctica: The SOLA/AGU CDROM / Jordan Towner Hasting.

Note: Table of contents: In Memoriam: J. M. Broadus. - Introduction: Sea-level Rise and Coastal Subsidence - Towards Meaningful Strategies / J. D. Milliman, B. U. Haq. - PART I: PROCESSES AND PROBLEMS. - 1 Global Sea-level Rise: Past and Future / S. C. B. Raper, T. M. L. Wigley, R. A. Warrick. - Observed Changes in Global Mean Sea Level. - Observed Changes in Global Mean Temperature. - The climate model. - Factors contributing to sea-level rise. - Temperature and Sea-Level Rise Results. - Summary and Conclusions. - Appendix: Radiative Forcing. - 2 Land Subsidence in Coastal Lowlands / Saskia Jelgersma. - Introduction. - Geological Setting. - Subsidence in Coastal Lowlands. - Methods to Control or Inhibit Induced Subsidence. - Conclusions. - 3 River-Sediment Inputs to Major Deltas / Robert H. Meade. - Introduction. - Tabulations of Discharge Data for Major Rivers. - Spatial Distributions of Sediment Sources and Sinks. - Temporal Variations in River-Sediment Discharge. - Storage of Sediment in Large River Systems. - Human Influences on River-Sediment Loads. - 4 Coastal Erosion and Rising Sea-Level / E. C. F. Bird. - Introduction. - Submerging Coastlines. - Coastline Changes. - Cliff Erosion. - Beach Erosion. - Erosion on Deltaic Coasts. - Erosion of Coastal Swamps. - Erosion of Developed Coastlines. - Conclusion. - PART II: CASE STUDIES. - 5 Land Subsidence in Bangkok during 1978-1988 / Prinya Nutalaya, R. N. Yong, Thongchai Chumnankit, Somkid Buapeng. - Introduction. - Land Subsidence Prior to 1978. - 1978 to 1988. - Effects of Land Subsidence. - Aquifer Delineation. - Source and Age of Ground Water. - Geotechnical Properties of Soils. - Mathematical Modeling to Predict Subsidence and Recharge Response. - Recommendations. - 6 Coastal Erosion in the Gulf of Thailand / S. Vongvisessomjai, R. Polsi, C. Manotham, D. Srisaengthong, S. Charulukkana. - Introduction. - Oceanographic Conditions. - Coastal Morphology. - Summary. - 7 Nature of Sediment Load in the Ganges-Brahmaputra River Systems in India / V. Subramanian, A. L. Ramanathan. - Introduction. - Description of the Basins. - Sediment and Water Discharge. - Basin Lithology. - Natural (Tectonic) and Human Impact on Sediment Load. - Erosion vs Deposition. - Nature of Sediment Load. - Conclusion. - 8 Subsidence of the Ganges-Brahmaputra Delta of Bangladesh and Associated Drainage, Sedimentation and Salinity Problems / Mahmood Alam. - Introduction. - Geotectonics. - Depositional Sequence. - Subsidence of the Basin and Progradation of the Delta. - Floods and Drainage Problems. - Effects of Recent Engineering Projects. - Salinity. - Sea-Level Rise. - Conclusions. - 9 Tectonic, Eustatic and Isostatic Changes along the Indian Coast / K. R. Subrahmanya. - Introduction. - Quaternary Eustatic Changes. - Holocene Uplift and Subsidence. - Most Recent Sea-Level Changes along the Indian Coast. - Conclusions. - 10 Effect of Sea-Level Rise and Human Activity on the Yangtze Delta, China / Ren Mei-e, J. D. Milliman. - The Yangtze River and its Delta. - Sea-Level Rise and Subsidence. - Impact of a Future Sea-Level Rise and Changes in Landuse and the Yangtze River. - Concluding Statement. - 11 Rising Sea-Level and Subsidence of the Northern Nile Delta: A Case Study / Mahmoud Kh. El-Sayed. - Introduction. - The Nile Delta. - Present-Day Use of the Northern Nile Delta. - Nile Damming and its Effect. - Impact of Climate Changes and Sea-Level Rise on the Nile Delta. - Scenario Based on Present-Day Assumptions and Socio-Economic Conditions in the Northern Nile Delta. - Management of the Northern Nile Delta. - Conclusions. - 12 Land Subsidence and Sea-Level Rise: The Case of the Po Delta Region, Italy / G. Sestini. - Introduction. - Historical Evolution of the NW Adriatic Coast. - Subsidence and its Impact. - Impact of Changes to River Sediment Discharge. - Discussion. - Conclusions. - 13 The Niger Delta and Sea-Level Rise / A. Chidi Ibe. - Introduction. - Tectonic and Sedimentary Evolution. - General Geomorphology. - Coastal Processes. - Erosion Scenario. - Change in Fluvial Sediment/Water Input to the Delta. - Socio-Economic Setting. - Concluding Statements and Suggestions. - 14 Sea-Level Rise and the Stability of Barrier Islands, with special reference to the Wadden Sea / H. Postma. - Post-Glacial Evolution. - Present-Day Conditions. - Future Sea-Level Rise. - Conclusions. - 15 Subsidence, Sea-Level Rise, and Wetland Loss in the Lower Mississippi River Delta / J. T. Wells. - Introduction. - Geological Setting and History. - Sea-Level Rise and Subsidence. - Subdeltas and Wetland Loss. - The Sediment Problem. - Future Mitigation: Artifical Diversions. - PART III: STRATEGIES. - 16 Economizing Human Responses to Subsidence and Rising Sea Level / J. M. Broadus. - Introduction. - Example Assessments for Bangladesh and Egypt. - An Extension of Crude Loss Estimates. - Qualitative Considerations. - Economic Considerations in Human Responses. - Summary. - 17 Man-Made Projects and Relative Sea-Level Rise / J. G. de Ronde. - General Considerations of Impacts. - A Preliminary Study for The Netherlands. - Policy Analysis. - 18 Impact of Sea Level Rise on Flood Control in Bangkok and Vicinity / Sanga Sabhasri, Ksemsan Suwarnarat. - Introduction. - Flood Control Plans. - Impact of Upstream Agricultural Development. - Land Subsidence. - Sedimention due to the Chao Praya River. - Coastal Vulnerability: Hazards and Strategies / B. U. Haq, J. D. Milliman. - Introduction. - Impacts. - of Accelerated Sea-Level Rise on Coastal Areas. - Impacts of Sea-Level Rise. - Adaptive Strategies. - Examples of Action and Consequences of Inaction. - Concluding Statement. - List of Contributors. - Geographic Index.

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