AGW Observer

Observations of anthropogenic global warming


Papers from New research stream


Grounding line retreat of Pope, Smith, and Kohler Glaciers, West Antarctica, measured with Sentinel-1a radar interferometry data (Scheuchl et al. 2016)

On the recent contribution of the Greenland ice sheet to sea level change (van den Broeke et al. 2016)

Tropical Pacific SST drivers of recent Antarctic sea ice trends (Purich et al. 2016)

Quantifying ice loss in the eastern Himalayas since 1974 using declassified spy satellite imagery (Maurer et al. 2016)

Quantifying the uncertainty in historical and future simulations of Northern Hemisphere spring snow cover (Thackeray et al. 2016)

Persistent artifacts in the NSIDC ice motion dataset and their implications for analysis (Szanyi et al. 2016)

Distributed ice thickness and glacier volume in southern South America (Carrivick et al. 2016)

Century-scale perspectives on observed and simulated Southern Ocean sea ice trends from proxy reconstructions (Hobbs et al. 2016)

Identifying dynamically induced variability in glacier mass-balance records (Christian et al. 2016)

Impacts of marine instability across the East Antarctic Ice Sheet on Southern Ocean dynamics (Phipps et al. 2016)

Effects of bryophyte and lichen cover on permafrost soil temperature at large scale (Porada et al. 2016)

Meltwater Pathways from Marine Terminating Glaciers of the Greenland Ice Sheet (Gillard et al. 2016)

Assimilation of surface velocities between 1996 and 2010 to constrain the form of the basal friction law under Pine Island Glacier (Gillet-Chaulet et al. 2016)

Linked trends in the south Pacific sea ice edge and Southern Oscillation Index (Kwok et al. 2016)

Greenland during the last interglacial: the relative importance of insolation and oceanic changes (Pedersen et al. 2016)

The impact of melt ponds on summertime microwave brightness temperatures and sea-ice concentrations (Kern et al. 2016)

The EUMETSAT sea ice concentration climate data record (Tonboe et al. 2016)

Temperature reconstruction from the length fluctuations of small glaciers in the eastern Alps (northeastern Italy) (Zecchetto et al. 2016)

Variability, trends, and predictability of seasonal sea ice retreat and advance in the Chukchi Sea (Serreze et al. 2016)

Producing cloud-free MODIS snow cover products with conditional probability interpolation and meteorological data (Dong & Menzel, 2016)

ICESat laser altimetry over small mountain glaciers (Treichler & Kääb, 2016)

Heterogeneous glacier thinning patterns over the last 40 years in Langtang Himal, Nepal (Ragettli et al. 2016)

Arctic sea ice patterns driven by the Asian Summer Monsoon (Grunseich & Wang, 2016)

Impact of climate warming on snow processes in ny-Ålesund, a polar maritime site at Svalbard (López-Moreno et al. 2016)

Variations in ice velocities of Pine Island Glacier Ice Shelf evaluated using multispectral image matching of Landsat time series data (Han et al. 2016)

Application of GRACE to the assessment of model-based estimates of monthly Greenland Ice Sheet mass balance (2003–2012) (Schlegel et al. 2016)

Near-real-time Arctic sea ice thickness and volume from CryoSat-2 (Tilling et al. 2016)

Potential for estimation of snow depth on Arctic sea ice from CryoSat-2 and SARAL/AltiKa missions (Guerreiro et al. 2016)

Sliding of temperate basal ice on a rough, hard bed: creep mechanisms, pressure melting, and implications for ice streaming (Krabbendam, 2016)

Monte Carlo modelling projects the loss of most land-terminating glaciers on Svalbard in the 21st century under RCP 8.5 forcing (Möller et al. 2016)

North-east sector of the Greenland Ice Sheet to undergo the greatest inland expansion of supraglacial lakes during the 21st century (Ignéczi et al. 2016)

Rapid glacial retreat on the Kamchatka Peninsula during the early 21st century (Lynch et al. 2016)

How predictable is the timing of a summer ice-free Arctic? (Jahn et al. 2016)

Satellite observed changes in the Northern Hemisphere snow cover phenology and the associated radiative forcing and feedback between 1982 and 2013 (Chen et al. 2016)

Grounding Line Variability and Subglacial Lake Drainage on Pine Island Glacier, Antarctica (Joughin et al. 2016)

Influences of surface air temperature and atmospheric circulation on winter snow cover variability over Europe (Ye & Lau, 2016)

Anthropogenic impact on Antarctic surface mass balance, currently masked by natural variability, to emerge by mid-century (Previdi & Polvani, 2016)

Reduced melt on debris-covered glaciers: investigations from Changri Nup Glacier, Nepal (Vincent et al. 2016)

Increasing water vapor transport to the Greenland Ice Sheet revealed using self-organizing maps (Mattingly et al. 2016)

Fine-scale spatial variation in ice cover and surface temperature trends across the surface of the Laurentian Great Lakes (Mason et al. 2016)

On the feedback of the winter NAO-driven sea ice anomalies (García-Serrano & Frankignoul, 2016)

Estimation of melt pond fraction over high-concentration Arctic sea ice using AMSR-E passive microwave data (Tanaka et al. 2016)

A simple equation for the melt elevation feedback of ice sheets (Levermann & Winkelmann, 2016)

Hail climatology and trends in Romania: 1961-2014 (Burcea et al. 2016)

Influence of the Eurasian snow on the negative North Atlantic Oscillation in subseasonal forecasts of the cold winter 2009/2010 (Orsolini et al. 2016)

Annual Greenland accumulation rates (2009–2012) from airborne snow radar (Koenig et al. 2016)

Ice-margin and meltwater dynamics during the mid-Holocene in the Kangerlussuaq area of west Greenland (Carrivick et al. 2016)

The robustness of mid-latitude weather pattern changes due to Arctic sea-ice loss (Chen et al. 2016)

Arctic Sea Ice Seasonal Prediction by a Linear Markov Model (Yuan et al. 2016)

Testing the recent snow drought as an analog for climate warming sensitivity of Cascades snowpacks (Cooper et al. 2016)

Summer Atmospheric Circulation Anomalies over the Arctic Ocean and Their Influences on September Sea Ice Extent: A Cautionary Tale (Serreze et al. 2016)

The abandoned ice sheet base at Camp Century, Greenland, in a warming climate (Colgan et al. 2016)

Thermal impacts of engineering activities and vegetation layer on permafrost in different alpine ecosystems of the Qinghai–Tibet Plateau, China (Wu et al. 2016)

Greenland annual accumulation along the EGIG line, 1959–2004, from ASIRAS airborne radar and neutron-probe density measurements (Overly et al. 2016)

Attribution of spring snow water equivalent (SWE) changes over the northern hemisphere to anthropogenic effects (Jeong et al. 2016)

Historical analysis and visualization of the retreat of Findelengletscher, Switzerland, 1859-2010 (Rastner et al. 2016)

Observed spatio-temporal changes of winter snow albedo over the north-west Himalaya (Negi et al. 2016)

An evaluation of high-resolution regional climate model simulations of snow cover and albedo over the Rocky Mountains, with implications for the simulated snow-albedo feedback (Minder et al. 2016)

Statistical indicators of Arctic sea-ice stability – prospects and limitations (Bathiany et al. 2016)

Effects of stratified active layers on high-altitude permafrost warming: a case study on the Qinghai–Tibet Plateau (Pan et al. 2016)

Monitoring surface deformation over permafrost with an improved SBAS-InSAR algorithm: With emphasis on climatic factors modeling

Interaction of sea ice floe size, ocean eddies and sea ice melting

Long-term changes of glaciers in north-western Spitsbergen

The Andes Cordillera. Part II: Rio Olivares Basin snow conditions (1979–2014), central Chile

Arctic sea ice decline contributes to thinning lake ice trend in northern Alaska

Design of a scanning laser meter for monitoring the spatio-temporal evolution of snow depth and its application in the Alps and in Antarctica

Predictability of Arctic annual minimum sea ice patterns

Decreasing Spatial Dependence in Extreme Snowfall in the French Alps since 1958 under Climate Change

Twelve-year cyclic surging episodes at Donjek Glacier in Yukon, Canada

Glacier melting and precipitation trends detected by surface area changes in Himalayan ponds

Changes in summer sea ice, albedo, and portioning of surface solar radiation in the Pacific sector of Arctic Ocean during 1982-2009

The effects of Antarctic iceberg calving-size distribution in a global climate model

About the consistency between Envisat and CryoSat-2 radar freeboard retrieval over Antarctic sea ice

Effects of sources, transport and post-depositional processes on levoglucosan records in southeastern Tibetan glaciers

Greenland Ice Sheet seasonal and spatial mass variability from model simulations and GRACE (2003–2012)

Emerging impact of Greenland meltwater on deepwater formation in the North Atlantic Ocean

Million year old ice found under meter-thick debris layer in Antarctica

Patterns of Sea-Ice Retreat in the Transition to a Seasonally Ice-Free Arctic

A review of recent changes in Southern Ocean sea ice, their drivers and forcings

Sea ice leads in the Arctic Ocean: Model assessment, interannual variability and trends

Atmospheric winter response to Arctic sea ice changes in reanalysis data and model simulations

Water-mass transformation by sea ice in the upper branch of the Southern Ocean overturning

Permafrost Meta-Omics and Climate Change

Carbon loss and chemical changes from permafrost collapse in the northern Tibetan Plateau

The Effects of Climate Change on Seasonal Snowpack and the Hydrology of the Northeastern and Upper Midwest, U.S.

Characterizing the extreme 2015 snowpack deficit in the Sierra Nevada (USA) and the implications for drought recovery

Effect of snow grain shape on snow albedo

Glacial Isostatic Adjustment (GIA) in Greenland: a Review

The Role of Ocean Heat Transport in the Global Climate Response to Projected Arctic Sea Ice Loss

Antarctic sea-ice expansion between 2000 and 2014 driven by tropical Pacific decadal climate variability

A snow climatology of the Andes Mountains from MODIS snow cover data

Accelerating retreat and high-elevation thinning of glaciers in central Spitsbergen

A global assessment of the societal impacts of glacier outburst floods

The Role of Springtime Arctic Clouds in Determining Autumn Sea Ice Extent

Linkages between Arctic summer circulation regimes and regional sea ice anomalies

Spatiotemporal Snowfall Variability in the Lake Michigan Region: How is Warming Affecting Wintertime Snowfall?

The Andes Cordillera. Part I: snow distribution, properties, and trends (1979–2014)

Threshold Sensitivity of Shallow Arctic Lakes and Sub-lake Permafrost to Changing Winter Climate

Variability in the sensitivity among model simulations of permafrost and carbon dynamics in the permafrost region between 1960 and 2009

A high resolution record of Greenland mass balance

Derivation and validation of supraglacial lake volumes on the Greenland Ice Sheet from high-resolution satellite imagery

Effects of a Warming Climate on Daily Snowfall Events in the Northern Hemisphere

Sensitivity of Arctic warming to sea-ice concentration

New visualizations highlight new information on the contrasting Arctic and Antarctic sea-ice trends since the late 1970s

Recent glacier changes in the Tien Shan observed by satellite gravity measurements

Greenland Ice Sheet influence on Last Interglacial climate: global sensitivity studies performed with an atmosphere–ocean general circulation model (open access)

Melt onset over Arctic sea ice controlled by atmospheric moisture transport

Using timing of ice retreat to predict timing of fall freeze-up in the Arctic

Time forecast of a break-off event from a hanging glacier (open access)

Ice flow dynamics and mass loss of Totten Glacier, East Antarctica from 1989 to 2015

Extraordinary runoff from the Greenland ice sheet in 2012 amplified by hypsometry and depleted firn retention (open access)

Modeling of ocean-induced ice melt rates of five West Greenland glaciers over the past two decades

Revealing the early ice flow patterns with historical Declassified Intelligence Satellite Photographs back to 1960s

Global snow cover estimation with Microwave Brightness Temperature measurements and one-class in situ observations

Eroding permafrost coasts release low amounts of dissolved organic carbon (DOC) from ground ice into the nearshore zone of the Arctic Ocean

Observed concentration budgets of Arctic and Antarctic sea ice

Dynamic preconditioning of the minimum September sea-ice extent

Modeling debris-covered glaciers: response to steady debris deposition (open access)

The climatic mass balance of Svalbard glaciers: a 10-year simulation with a coupled atmosphere–glacier mass balance model (open access)

Can the Tibetan Plateau snow cover influence the interannual variations of Eurasian heat wave frequency?

Attribution of the spring snow cover extent decline in the Northern Hemisphere, Eurasia and North America to anthropogenic influence

Quantifying Greenland freshwater flux underestimates in climate models

Four-decade record of pervasive grounding line retreat along the Bellingshausen margin of West Antarctica

Distribution, attribution, and radiative forcing of snow cover changes over China from 1982 to 2013

Climate change impact on the roles of temperature and precipitation in western U.S. snowpack variability

Evidence of recent changes in the ice regime of lakes in the Canadian High Arctic from spaceborne satellite observations (open access)

Climate regulates alpine lake ice cover phenology and aquatic ecosystem structure

The influence of continental shelf bathymetry on Antarctic Ice Sheet response to climate forcing

Adjustment of regional climate model output for modeling the climatic mass balance of all glaciers on Svalbard

Greenland Blocking Index 1851–2015: a regional climate change signal (open access)

Atmospheric drivers of Greenland surface melt revealed by Self Organizing Maps

A comparison of Antarctic Ice Sheet surface mass balance from atmospheric climate models and in situ observations

The dynamics of supraglacial water storage in the Everest region, central Himalaya

On the link between Barents-Kara sea-ice variability and European blocking

Sea ice circulation around the Beaufort Gyre: The changing role of wind forcing and the sea ice state

Non-annular response of sea ice cover in the Indian sector of the Antarctic during extreme SAM events

Sea ice production variability in Antarctic coastal polynyas

Dynamical link between the Barents-Kara Sea ice and the Arctic Oscillation

Future climate warming and changes to mountain permafrost in the Bolivian Andes

Local and regional variability in snow conditions in northern Finland: A reindeer herding perspective

Melting at the base of the Greenland ice sheet explained by Iceland hotspot history

Tundra permafrost thaw causes significant shifts in energy partitioning (open access)

Atmospheric response to the autumn sea-ice free Arctic and its detectability (open access)

Antarctic sea ice increase consistent with intrinsic variability of the Amundsen Sea Low (open access)

Accumulation Variability in the Antarctic Peninsula: The Role of Large-Scale Atmospheric Oscillations and Their Interactions

Changing Arctic snow cover: A review of recent developments and assessment of future needs for observations, modelling, and impacts (open access)

Eurasian snow cover variability in relation to warming trend and Arctic Oscillation

Spatiotemporal analysis of snow cover variations at mt. Kilimanjaro using multi-temporal Landsat images during 27 years

The snow and the willows: Earlier spring snowmelt reduces performance in the low-lying alpine shrub Salix herbacea

Arctic sea ice simulation in the PlioMIP ensemble (open access)

Glacier change over the last century, Caucasus Mountains, Georgia, observed from old topographical maps, Landsat and ASTER satellite imagery (open access)

Analysis of the mass balance time series of glaciers in the Italian Alps (open access)

Seasonal atmospheric responses to reduced Arctic sea ice in an ensemble of coupled model simulations

Recent changes in sea ice area flux through the Beaufort Sea during the summer

Pan-Arctic ice-wedge degradation in warming permafrost and its influence on tundra hydrology

Changing climate and glacio-hydrology in Indian Himalayan Region: a review

Impacts of warm water on Antarctic ice shelf stability through basal channel formation

Modelled glacier dynamics over the last quarter of a century at Jakobshavn Isbræ (open access)

Thinning of the Monte Perdido Glacier in the Spanish Pyrenees since 1981 (open access)

Sea-ice melt onset associated with lead opening during the spring/summer transition near the North Pole

Ice mass loss in Greenland, the Gulf of Alaska, and the Canadian Archipelago: Seasonal cycles and decadal trends

Fluvial supraglacial landscape evolution on the Greenland Ice Sheet

Reanalysis of long-term series of glaciological and geodetic mass balance for 10 Norwegian glaciers (open access)

Importance of combined winter and summer Arctic Oscillation (AO) on September sea ice extent (open access)

Detection of melt onset over the northern Canadian Arctic Archipelago sea ice from RADARSAT, 1997–2014

Monitoring ice break-up on the Mackenzie River using MODIS data (open access)

An assessment of the possible impacts of climate change on snow and peak river flows across Britain

Suppressed mid-latitude summer atmospheric warming by Arctic sea ice loss during 1979-2012

The darkening of the Greenland ice sheet: trends, drivers, and projections (1981–2100) (open access)

Modelling calving front dynamics using a level-set method: application to Jakobshavn Isbræ, West Greenland (open access)

Impact of sea ice initialisation on sea ice and atmosphere prediction skill on seasonal timescales

Has Arctic sea-ice loss contributed to increased surface melting of the Greenland ice sheet?

The implication of non-radiative energy fluxes dominating Greenland ice sheet exceptional ablation area surface melt in 2012

Modeling of Store Gletscher’s calving dynamics, West Greenland, in response to ocean thermal forcing

Episodic ice velocity fluctuations triggered by a subglacial flood in West Antarctica

Replacement of Multiyear sea ice and Changes in the Open Water Season Duration in the Beaufort Sea Since 2004

The Combined Influences of Autumnal Snow and Sea Ice on Northern Hemisphere Winters

The Influence of Winter Cloud on Summer Sea Ice in the Arctic, 1983–2013

Potential ocean-atmosphere preconditioning of late autumn Barents-Kara sea ice concentration anomaly (open access)

The surface climatology of the Ross Ice Shelf Antarctica (open access)

Large scale atmospheric warming in winter and the Arctic sea ice retreat

Snow and albedo climate change impacts across the United States Northern Great Plains (open access)

Observed high-altitude warming and snow cover retreat over Tibet and the Himalayas enhanced by black carbon aerosols (open access)

Projections of glacier change in the Altai Mountains under twenty-first century climate scenarios

Predictability of the Arctic sea-ice edge

On the potential for abrupt Arctic winter sea-ice loss

Investigating uncertainty in the simulation of the Antarctic ice sheet during the mid-Piacenzian

The Response of the Southern Ocean and Antarctic Sea Ice to Fresh Water from Ice Shelves in an Earth System Model

High basal melting forming a channel at the grounding line of Ross Ice Shelf, Antarctica

Observational uncertainty of Arctic sea-ice concentration significantly affects seasonal climate forecasts

A modeling investigation of the Arctic sea ice-atmosphere feedback

Twentieth-century sea ice variability in the Weddell Sea and its effect on moisture transport: Evidence from a coastal East Antarctic ice core record

Intercomparison of the Arctic sea ice cover in global ocean–sea ice reanalyses from the ORA-IP project

Sea ice cover in Isfjorden and Hornsund, Svalbard (2000–2014) from remote sensing data (open access)

Comparison of multiple glacier inventories with a new inventory derived from high-resolution ALOS imagery in the Bhutan Himalaya (open access)

Feasibility of improving a priori regional climate model estimates of Greenland ice sheet surface mass loss through assimilation of measured ice surface temperatures (open access)

Ablation from calving and surface melt at lake-terminating Bridge Glacier, British Columbia, 1984–2013 (open access)

Climatic controls and climate proxy potential of Lewis Glacier, Mt. Kenya (open access)

Spatial and temporal patterns in Arctic river ice breakup revealed by automated ice detection from MODIS imagery

Sheet, stream, and shelf flow as progressive ice-bed uncoupling: Byrd Glacier, Antarctica and Jakobshavn Isbrae, Greenland (open access)

Global reconstructions of glacier mass change during the 20th century are consistent (open access)

Committed retreat of Smith, Pope, and Kohler Glaciers over the next 30 years inferred by transient model calibration (open access)

Improved Arctic sea ice thickness projections using bias-corrected CMIP5 simulations (open access)

SeaRISE experiments revisited: potential sources of spread in multi-model projections of the Greenland ice sheet (open access)

Small glaciers on the Balkan Peninsula: State and changes in the last several years

Satellite-derived changes in the permafrost landscape of central Yakutia, 2000–2011: Wetting, drying, and fires

Older papers


Observed changes in snow depth and number of snow days in the eastern and central Tibetan Plateau (You et al. 2011)
Vanishing winters in Germany: soil frost dynamics and snow cover trends, and ecological implications (Kreyling & Henry, 2011)
Occurrence of synoptic flaw leads of sea ice in the Gulf of Finland (Pärn & Haapala 2011)


Prolongation of soil frost resulting from reduced snow cover increases nitrous oxide emissions from boreal forest soil (Maljanen et al. 2010)
A study on effects of lake temperature and ice cover in HIRLAM (Eerola et al. 2010)
Simulation of temperate freezing lakes by one-dimensional lake models: performance assessment for interactive coupling with regional climate models (Martynov et al. 2010)


Sea ice, climate change, and community vulnerability in northern Foxe Basin, Canada (Ford et al. 2009)
An enhanced sea-ice thermodynamic model applied to the Baltic Sea (Tedesco et al. 2009)


Ice regime dynamics in the Nemunas River, Lithuania (Stonevicius et al. 2008)
Sensitivity of the snow energy balance to climatic changes: prediction of snowpack in the Pyrenees in the 21st century (López-Moreno et al. 2008)
Snow accumulation on evergreen needle-leaved and deciduous broad-leaved trees (Suzuki et al. 2008)


Relationships between Antarctic sea-ice and South African winter rainfall (Blamey & Reason, 2007)
Mapping snowpack distribution over large areas using GIS and interpolation techniques (López-Moreno et al. 2007)
Validation of the SNOWPACK model in five different snow zones in Finland (Rasmus et al. 2007)
Antecedent snow conditions affect water levels and plant biomass of a fen in the southern boreal forest: results from an experiment using mesocosms (Benoy et al. 2007)


Relationships between NW flow snowfall and topography in the Southern Appalachians, USA (Perry & Konrad, 2006)
East-west asymmetry in long-term trends of landfast ice thickness in the Hudson Bay region, Canada (Gagnon & Gough, 2006)
Swiss Alpine snow pack variability: major patterns and links to local climate and large-scale flow (Scherrer & Appenzeller, 2006)
Trends in sea ice conditions in the Baltic Sea near the Estonian coast during the period 1949/1950–2003/2004 and their relationships to large-scale atmospheric circulation (Jaagus 2006)


Variation in sea ice cover on the east coast of Canada from 1969 to 2002: climate variability and implications for harp and hooded seals (Johnston et al. 2005)
Influence of Eurasian snow cover in spring on the Indian Ocean Dipole (Pang et al. 2005)


Long-term changes in snow cover depth in eastern Europe (Bednorz & Kossowski, 2004)
Atmospheric circulation and its impact on ice phenology in Scandinavia (Blenckner et al. 2004)


Baltic Sea ice seasons in the twentieth century (Jevrejeva et al. 2003)


Long-term variability in reconstructed and observed snow cover over the last 100 winter seasons in Cracow and Zakopane (southern Poland) (Falarz, 2002)
The snow cover characteristics of northern Eurasia and their relationship to climatic parameters (Kitaev et al. 2002)
Snow water equivalent variability and forecast in Lithuania (Rimkus & Stankunavichius 2002)


Impact of climate change on soil frost under snow cover in a forested landscape (Venäläinen et al. 2001)


The atmospheric response to a reduction in summer Antarctic sea-ice extent (Hudson & Hewitson, 2000)


Air and soil frost indices in relation to plant mortality in elevated clear-felled terrain in Central Sweden (Lindkvist & Chen, 1999)


An empirical approach for delineating fine scaled spatial patterns of freezing rain in the Appalachian region of the USA (Konrad, 1998)


The Baltic Sea ice season in changing climate (Haapala & Leppäranta 1997)
Variability of climatic and ice conditions in the Bohai Sea, China (Zhang et al. 1997)


Snowpack ablation and associated processes in the Subarctic forest near Fort Norman, N.W.T., Canada (Kershaw, 1995)


Freezing rain and sleet climatology of the southeastern USA (Gay & Davis, 1993)

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