ALBERT

Note: Contents: Preface. - 1. Overview of climate variability and climate science. - 1.1 Climate dynamics, climate change and climate prediction. - 1.2 The chemical and physical climate system. - 1.2.1 Chemical and physical aspects of the climate system. - 1.2.2 El Niño and global warming. - 1.3 Climate models: a brief overview. - 1.4 Global change in recent history. - 1.4.1 Trace gas concentrations. - 1.4.2 A word on the ozone hole. - 1.4.3 Some history of global warming studies. - 1.4.4 Global temperatures. - 1.5 El Niño: an example of natural climate variability. - 1.5.1 Some history of El Niño studies. - 1.5.2 Observations of El Niño: the 1997-98 event. - 1.5.3 The first El Niño forecast with a coupled ocean-atmosphere model. - 1.6 Paleoclimate variability. - Notes. - 2. Basics of global climate. - 2.1 Components and phenomena in the climate system. - 2.1.1 Time and space scales. - 2.1.2 Interactions among scales and the parameterization problem. - 2.2 Basics of radiative forcing. - 2.2.1 Blackbody radiation. - 2.2.2 Solar energy input. - 2.3 Globally averaged energy budget: first glance. - 2.4 Gradients of radiative forcing and energy transports. - 2.5 Atmospheric circulation. - 2.5.1 Vertical structure. - 2.5.2 Latitude structure of the circulation. - 2.5.3 Latitude-Iongitude dependence of atmospheric climate features. - 2.6 Ocean circulation. - 2.6.1 Latitude-longitude dependence of oceanic climate features. - 2.6.2 The ocean vertical structure. - 2.6.3 The ocean thermohaline circulation. - 2.7 Land surface proeesses. - 2.8 The carbon cycle. - Notes. - 3. Physical processes in the climate system. - 3.1 Conservation of momentum. - 3.1.1 Coriolis force. - 3.1.2 Pressure gradient force. - 3.1.3 Velocity equations. - 3.1.4 Application: geostrophic wind. - 3.1.5 Pressure-height relation: hydrostatic balance. - 3.1.6 Application: pressure coordinates. - 3.2 Equation of state. - 3.2.1 Equation of state for the atmosphere: ideal gas law. - 3.2.2 Equation of state for the ocean. - 3.2.3 Application: atmospheric height-pressure-temperature relation. - 3.2.4 Application: thermal circulations. - 3.2.5 Application: sea level rise due to oceanic thermal expansion. - 3.3 Temperature equation. - 3.3.1 Ocean temperature equation. - 3.3.2 Temperature equation for air. - 3.3.3 Application: the dry adiabatic lapse rate near the surface. - 3.3.4 Application: decay of a sea surface temperature anomaly. - 3.3.5 Time derivative following the parcel. - 3.4 Continuity equation. - 3.4.1 Oceanic continuity equation. - 3.4.2 Atmospheric continuity equation. - 3.4.3 Application: coastal upwelling. - 3.4.4 Application: equatorial upwelling. - 3.4.5 Application: conservation of warm water mass in an idealized layer above the thermocline. - 3.5 Conservation of mass applied to moisture. - 3.5.1 Moisture equation for the atmosphere and surface. - 3.5.2 Sources and sinks of moisture, and latent heat. - 3.5.3 Application: surface melting on an ice sheet. - 3.5.4 Salinity equation for the ocean. - 3.6 Moist processes. - 3.6.1 Saturation. - 3.6.2 Saturation in convection; lifting condensation level. - 3.6.3 The moist adiabat and lapse rate in convective regions. - 3.6.4 Moist convection. - 3.7 Wave processes in the atmosphere and ocean. - 3.7.1 Gravity waves. - 3.7.2 Kelvin waves. - 3.7.3 Rossby waves. - 3.8 Overview. - Notes. - 4. El Niño and year-to-year climate prediction. - 4.1 Recap of El Niño basics. - 4.1.1 The Bjerknes hypothesis. - 4.2 Tropical Pacific climatology. - 4.3 ENSO mechanisms I: extreme phases. - 4.4 Pressure gradients in an idealized upper layer. - 4.4.1 Subsurface temperature anomalies in an idealized upper layer. - 4.5 Transition into the 1997-98 El Niño. - 4.5.1 Subsurface temperature measurements. - 4.5.2 Subsurface temperature anomalies during the onset of El Niño. - 4.5.3 Subsurface temperature anomalies during the transition to La Niña. - 4.6 El Niño mechanisms II: dynamics of transition phases. - 4.6.1 Equatorial jets and the Kelvin wave. - 4.6.2 The Kelvin wave speed. - 4.6.3 What sets the width of the Kelvin wave and equatorial jet?. - 4.6.4 Response of the ocean to a wind anomaly. - 4.6.5 The delayed oscillator model and the recharge oscillator model. - 4.6.6 ENSO transition mechanism in brief. - 4.7 El Niño prediction. - 4.7.1 Limits to skill in ENSO forecasts. - 4.8 El Niño remote impacts: teleconnections. - 4.9 Other interannual climate phenomena. - 4.9.1 Hurricane season forecasts. - 4.9.2 Sahel drought. - 4.9.3 North Atlantic oscillation and annular modes. - Notes. - 5. Climate models. - 5.1 Constructing a climate model. - 5.1.1 An atmospheric model. - 5.1.2 Treatment of sub-grid-scale processes. - 5.1.3 Resolution and computational cost. - 5.1.4 An ocean model and ocean-atmosphere coupling. - 5.1.5 Land surface, snow, ice and vegetation. - 5.1.6 Summary of principal climate model equations. - 5.1.7 Climate system modeling. - 5.2 Numerical representation of atmospheric and oceanic equations. - 5.2.1 Finite-difference versus spectral models. - 5.2.2 Time-stepping and numerical stability. - 5.2.3 Staggered grids and other grids. - 5.2.4 Parallel computer architecture. - 5.3 Parameterization of small-scale processes. - 5.3.1 Mixing and surface fluxes. - 5.3.2 Dry convection. - 5.3.3 Moist convection. - 5.3.4 Land surface processes and soil moisture. - 5.3.5 Sea ice and snow. - 5.4 The hierarchy of climate models. - 5.5 Climate simulations and climate drift. - 5.6 Evaluation of climate model simulations for present-day climate. - 5.6.1 Atmospheric model climatology from specified SST. - 5.6.2 Climate model simulation of climatology. - 5.6.3 Simulation of ENSO response. - Notes. - 6. The greenhouse effect and climate feedbacks. - 6.1 The greenhouse effect in Earth's current climate. - 6.1.1 Global energy balance. - 6.1.2 A global-average energy balance model with a one-layer atmosphere. - 6.1.3 Infrared emissions from a layer. - 6.1.4 The greenhouse effect: example with a completely IR-absorbing atmosphere. - 6.1.5 The greenhouse effect in a one-layer atmosphere, global-average model. - 6.1.6 Temperatures from the one-layer energy balance model. - 6.2 Global warming I: example in the global-average energy balance model. - 6.2.1 Increases in the basic greenhouse effect. - 6.2.2 Climate feedback parameter in the one-layer global-average model. - 6.3 Climate feedbacks. - 6.3.1 Climate feedback parameter. - 6.3.2 Contributions of climate feedbacks to global-average temperature response. - 6.3.3 Climate sensitivity. - 6.4 The water vapor feedback. - 6.5 Snow/ice feedback. - 6.6 Cloud feedbacks. - 6.7 Other feedbacks in the physical climate system. - 6.7.1 Stratospheric cooling. - 6.7.2 Lapse rate feedback. - 6.8 Climate response time in transient climate change. - 6.8.1 Transient climate change versus equilibrium response experiments. - 6.8.2 A doubled-CO2 equilibrium response experiment. - 6.8.3 The role of the oceans in slowing warming. - 6.8.4 Climate sensitivity in transient climate change. - Notes. - 7. Climate model scenarios for global warming. - 7.1 Greenhouse gases, aerosols and other climate forcings. - 7.1.1 Scenarios, forcings and feedbacks. - 7.1.2 Forcing by sulfate aerosols. - 7.1.3 Commonly used scenarios. - 7.2 Global-average response to greenhouse warming scenarios. - 7.3 Spatial patterns of warming for time-dependent scenarios. - 7.3.1 Comparing projections of different climate models. - 7.3.2 Multi-model ensemble averages. - 7.3.3 Polar amplification of warming. - 7.3.4 Summary of spatial patterns of the response. - 7.4 Ice, sea level, extreme events. - 7.4.1 Sea ice and snow. - 7.4.2 Land ice. - 7.4.3 Extreme events. - 7.5 Summary: the best-estimate prognosis. - 7.6 Climate change observed to date. - 7.6.1 Temperature trends and natural variability: scale dependence. - 7.6.2 Is the observed trend consistent with natural variability or anthropogenic forcing?. - 7.6.3 Sea ice, land ice, ocean heat storage and sea level rise. - 7.7 Emissions

Note: Erscheinungsjahr in Vorlageform:2012

Note: TABLE OF CONTENTS PREFACE CHAPTER 1: INTRODUCTION How to collect, process and identify diatoms Phytoplankton Periphyton Permanent preparation Health and Safety Light microscopy (LM) Scanning Electron Microscopy (SEM) The Pathway to diatom studies CHAPTER 2 BIOLOGY AND APPLICATION OF DIATOMS Introduction Habitat Habit Frustule Structure Cytology Cell Division Movement of Diatoms Life Cycle Resting Stages Ecology and biomonitoring Palaeoecology and climate change Diatomite Diatoms in Forensic Science Harmful Diatoms Classification and Systematics CHAPTER 3 FEATURES AND ILLUSTRATED GLOSSARY FOR DIATOM IDENTIFICATION Glossary of Terms Applicable to Diatoms Botanical Nomenclature A Mind Map Recent Name Changes CHAPTER 4 SHORT DIAGNOSTIC DESCRIPTIONS OF COMMON GENERA CENTRIC PENNATE DIATOMS ARAPHID GROUP MONORAPHID GROUP PRORAPHID GROUP BIRAPHID GROUP NAVICULOID SIGMOID GROUP HETEROPOLAR GROUP CYMBELLOID GROUP DIATOMS WITH RAPHE RAISED ON KEEL BIBLIOGRAPHY INDEX OF DIATOM SPECIES ILLUSTRATED IN THIS GUIDE

Note: Contents: Preface. - 1 Basics. - 2 Radiative energy flows. - 3 How turbulence and cumulus clouds carry energy upward. - Appendix to Chapter 3: More about Eddy Fluxes. - 4 How energy travels from the tropics to the poles. - Appendix to chapter 4: Conservation of momentum on a rotating sphere. - 5 Feedbacks. - 6 The water planet. - 7 Predictability of weather and climate. - 8 Air, sea, land. - 9 Frontiers. - Notes. - Glossary. - Suggestions for further reading. - Bibliography. - Index.

Note: Zugl.: Berlin, Techn. Univ., Diss., 2012

Note: Erscheinungsjahr in Vorlageform:2012

Note: Contents: 1 Introduction. - 1.1 The world cold regions. - 1.2 Water in frozen soils. - 1.3 Permafrost. - 1.3.1 Definitions. - 1.3.2. Distribution. - 1.3.3. Factors influencing permafrost occurence. - 1.4 Permafrost and hydrology. - 1.4.1 Permafrost hydrology. - 1.4.2 Hydrologic behavior of seasonal frost and permafrost. - 1.5 Environments of permafrost regions. - 1.5.1 Hydroclimatology. - 1.5.2 Geology. - 1.5.3 Glaciation. - 1.5.4 Physiography. - 1.5.5 Vegetation. - 1.5.6 Peat cover. - 1.6 Presentation of the book. - 2 Moisture and heat. - 2.1 Precipitation. - 2.1.1 General pattern. - 2.1.2 Cyclones. - 2.1.3 Recycling. - 2.1.4 Trace precipitation. - 2.2 Surface energy balance. - 2.3 Evaporation. - 2.3.1 Eddy Fluctuation Method. - 2.3.2 Aerodynamic method. - 2.3.3 Bowen Ratio Method. - 2.3.4 Priestley and Taylor Method. - 2.4 Energy balance of the active layer. - 2.4.1 Energy Balance. - 2.4.2 Thermal conductivity and heat capacity. - 2.5 Ground temperature. - 2.5.1 Penetration of temperature waves. - 2.5.2 Frost table development. - 2.6 Heat and moisture flows in frozen soils. - 2.6.1 Stefan's Algorithm. - 2.6.2 Near-Surface ground temperature. - 2.6.3 Moisture migration and ice lens formation. - 2.7 Ground ice. - 2.7.1 Types of ground ice. - 2.7.2 Excess ice. - 3 Groundwater. - 3.1 Groundwater occurence in permafrost. - 3.1.1 Suprapermafrost groundwater. - 3.1.2 Intrapermafrost groundwater. - 3.1.3 Subpermafrost groundwater. - 3.2 Groundwater recharge and circulation. - 3.2.1 Recharge. - 3.2.2 Groundwater movement. - 3.3 Groundwater discharge. - 3.3.1 Seeps. - 3.3.2 Springs. - 3.3.3 Baseflow. - 3.3.4 Ponds and lakes. - 3.4 Icings. - 3.4.1 Ground and spring icings. - 3.4.2 River icings. - 3.4.3 Icing dimension. - 3.4.4 Icing problems. - 3.5 Domed ice features. - 3.5.1 Frost mounds and icing mounds. - 3.5.2 Pingos. - References. - 4 Snow cover. - 4.1 Snow accumulation. - 4.1.1 Winter precipitation. - 4.1.2 Blowing snow. - 4.1.3 Terrain heterogeneity. - 4.1.4 Vegetation cover. - 4.2 Characteristics of the snow cover. - 4.2.1 Snow temperature and insulation. - 4.2.2 Snow metamorphism. - 4.2.3 Snow stratigraphy. - 4.3 Snowmelt processes. - 4.3.1 Radiation melt. - 4.3.2 Turbulent fluxes melt. - 4.3.3 Other melt terms. - 4.4 Snowmelt in permafrost areas. - 4.4.1 Tundra and Barren areas. - 4.4.2 Dirty snow. - 4.4.3 Shrub fields. - 4.4.4 Forests. - 4.5 Meltwater movement in snow. - 4.5.1 Dry snow. - 4.5.2 Wet snow. - References. - 5 Active layer dynamics. - 5.1 Freeze-back and winter periods. - 5.1.1 Snow cover and ground freezing. - 5.1.2 Moisture flux and ice formation. - 5.1.3 Vapor flux from soil to snow. - 5.2 Snowmelt period. - 5.2.1 Snowmelt and basal ice. - 5.2.2 Infiltration into frozen soil. - 5.2.3 Soil warming. - 5.2.4 Surface saturation, evaporation and runoff. - 5.3 Summer. - 5.3.1 Active layer thaw. - 5.3.2 Summer precipitation. - 5.3.3 Evaporation. - 5.3.4 Rainwater infiltration. - 5.3.5 Soil moisture. - 5.3.6 Groundwater. - References. - 6 Slope processes. - 6.1 Flow paths. - 6.1.1 Flow paths in snow. - 6.1.2 Surface and subsurface flows. - 6.1.3 Flow in bedrock areas. - 6.1.4 Flow in unconsolidated materials. - 6.2 Water sources. - 6.3 Factors influencing slope runoff generation. - 6.3.1 Microclimatic control. - 6.3.2 Topographic influence. - 6.3.3 Importance of the Frost table. - 6.3.4 Roles of organic materials. - 6.3.5 Bedrock control. - 6.4 Basin slopes in permafrost regions. - 6.4.1 High Arctic slopes. - 6.4.2 Low Arctic slopes. - 6.4.3 Subarctic slopes. - 6.4.4 Alpine permafrost zones. - 6.4.5 Precambrian bedrock terrain. - 6.5 Concepts for basin flow generation. - 6.5.1 Variable source area and fill-and-spill concepts. - 6.5.2 Heterogenous slopes. - References. - 7 Cold lakes. - 7.1 Types of lake. - 7.2 Lake ice. - 7.2.1 Lake ice regime. - 7.2.2 Ice formation and growth. - 7.2.3 Ice decay. - 7.3 Lake circulation. - 7.4 Hydrologic inputs. - 7.5 Lake evaporation. - 7.6 Lake outflow. - 7.6.1 Outflow conditions. - 7.6.2 Fill-and-Spill concept and lake outflow. - 7.7 Lake level. - 7.8 Large lakes. - 7.9 Permafrost and lakes. - References. - 8 Northern wetlands. - 8.1 Wetlands in permafrost regions. - 8.2 Factors favoring wetland occurence. - 8.2.1 Climate. - 8.2.2 Topography. - 8.2.3 Stratigraphy. - 8.2.4 Other factors. - 8.3 Hydrogeomorphic features in wetlands. - 8.3.1 Bog-related features. - 8.3.2 Fen-related features. - 8.3.3 Marshes and swamps. - 8.3.4 Shallow water bodies. - 8.4 Hydrologic behavior of wetlands. - 8.4.1 Seasonality of hydrologic activities. - 8.4.2 Wetland storage. - 8.4.3 Flow paths. - 8.4.4 Application of Fill-and-Spill concept. - 8.5 Patchy arctic wetlands. - 8.5.1 Wetlands maintained by snowmelt. - 8.5.2 Groundwater-fed wetlands. - 8.5.3 Valley bottom fens. - 8.5.4 Wetlands due to lateral inundation. - 8.5.5 Tundra ponds. - 8.5.6 Lake-fed and lake-bed wetlands. - 8.6 Extensive wetlands. - 8.6.1 Wet terrain. - 8.6.2 Ice-wedge polygon fields. - 8.6.3 Coastal plains. - 8.6.4 Deltas. - 8.6.5 Subarctic continental wetlands. - 8.7 Wetlands, permafrost and disturbances. - References. - 9 Rivers in cold regions. - 9.1 Drainage patterns. - 9.2 In-valley conditions. - 9.2.1 Geological setting for channels. - 9.2.2 River ice. - 9.2.3 River icing. - 9.2.4 In-channel snow. - 9.2.5 Permafrost. - 9.2.6 Alluvial environment. - 9.3 In-channel hydrology. - 9.3.1 Lateral inflow. - 9.3.2 Channel inflow. - 9.3.3 Vertical water exchanges. - 9.3.4 Storage in channels. - 9.4 Flow connectivity and delivery. - 9.4.1 Flow network integration. - 9.4.2 Decoupling of flow network. - 9.4.3 Flow delivery. - References. - 10 Basin hydrology. - 10.1 Basin outflow generation. - 10.1.1 The roles of snow. - 10.1.2 Meltwater from glaciers. - 10.1.3 Rainfall contribution. - 10.1.4 Groundwater supply. - 10.1.5 Evaporation losses. - 10.1.6 Permafrost effects. - 10.1.7 Consequences of basin storage. - 10.2 Streamflow hydrograph. - 10.3 Streamflow regimes. - 10.3.1 Nival regime. - 10.3.2 Proglacial regime. - 10.3.3 Pluvial regime. - 10.3.4 Spring-fed Regime. - 10.3.5 Prolacustrine regime. - 10.3.6 Wetland regime. - 10.4 Streamflow in large basins. - 10.4.1 Scaling up to large rivers. - 10.4.2 Flow generation in a large basin: the Liard river. - 10.4.3 Regulated discharge of large rivers. - 10.4.4 Flow in a sub-continental scale basin: Mackenzie basin. - 10.5 Basin water balance. - 10.5.1 Considerations in water balance investigation. - 10.5.2 Regional tendencies. - 10.5.3 Examples from permafrost environments. - 10.6 Permafrost basin hydrology: general remarks. - References. - Appendices. - Index.