selected publications
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conference proceeding
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Arctic sea-ice variability revisited.
Annals of Glaciology.
71-81.
2007
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Comparison of sea-ice extent and ice-edge location estimates from passive microwave and enhanced-resolution scatterometer data.
Annals of Glaciology.
65-70.
2007
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Whither Arctic sea ice? A clear signal of decline regionally, seasonally and extending beyond the satellite record.
Annals of Glaciology.
428-+.
2006
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Arctic sea ice variability during the last half century.
143-+.
2006
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Bridging perspectives from remote sensing and Inuit communities on changing sea-ice cover in the Baffin Bay region.
Annals of Glaciology.
433-+.
2005
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Recent changes in the Arctic melt season.
Annals of Glaciology.
367-374.
2005
- Improvements in virtual sensors: Using spatial information to estimate remote sensing spectra. 5606-5609. 2005
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Virtual sensors: Using data mining techniques to efficiently estimate remote sensing spectra.
IEEE Transactions on Geoscience and Remote Sensing.
590-600.
2003
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EOS Aqua AMSR-E arctic sea ice validation program.
Proceedings of SPIE.
413-424.
2002
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Research applications and opportunities using Advanced Microwave Scanning Radiometer-earth Observing System (AMSR-E) data.
Proceedings of SPIE.
434-445.
2002
- Cryospheric applications of MISR data. 1219-1221. 2001
- Sensitivity analysis of operational passive microwave sea-ice algorithms. 1798-1800. 2001
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Development and validation of a snow albedo algorithm for the MODIS instrument.
Annals of Glaciology.
45-52.
2001
- The changing albedo of the Greenland ice sheet: implications for climate modeling. Annals of Glaciology. 51-57. 1996
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Arctic sea-ice variability revisited.
Annals of Glaciology.
71-81.
2007
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journal article
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Changing state of Arctic sea ice across all seasons.
Environmental Research Letters.
2018
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Ice and Snow Thickness Variability and Change in the High Arctic Ocean Observed by In Situ Measurements.
Geophysical Research Letters.
10462-10469.
2017
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Detecting failure of climate predictions.
Nature Climate Change.
861-+.
2016
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Mapping and assessing variability in the Antarctic marginal ice zone, pack ice and coastal polynyas in two sea ice algorithms with implications on breeding success of snow petrels.
The Cryosphere.
1823-1843.
2016
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Melt onset over Arctic sea ice controlled by atmospheric moisture transport.
Geophysical Research Letters.
6636-6642.
2016
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Using timing of ice retreat to predict timing of fall freeze-up in the Arctic.
Geophysical Research Letters.
6332-6340.
2016
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Relating the Age of Arctic Sea Ice to its Thickness, as Measured during NASA's ICESat and IceBridge Campaigns.
Remote Sensing.
2016
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Atmospheric drivers of Greenland surface melt revealed by self-organizing maps.
Journal of Geophysical Research: Atmospheres.
5095-5114.
2016
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The Arctic is becoming warmer and wetter as revealed by the Atmospheric Infrared Sounder.
Geophysical Research Letters.
4439-4446.
2015
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Changes in Arctic melt season and implications for sea ice loss.
Geophysical Research Letters.
1216-1225.
2014
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Future Arctic climate changes: Adaptation and mitigation time scales.
Earths Future|.
68-74.
2014
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North American Climate in CMIP5 Experiments. Part I: Evaluation of Historical Simulations of Continental and Regional Climatology.
Journal of Climate.
9209-9245.
2013
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Temperature and vegetation seasonality diminishment over northern lands.
Nature Climate Change.
581-586.
2013
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Trends in Arctic sea ice extent from CMIP5, CMIP3 and observations.
Geophysical Research Letters.
2012
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The Arctic's rapidly shrinking sea ice cover: a research synthesis.
Climatic Change.
1005-1027.
2012
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Greenland ice sheet albedo feedback: thermodynamics and atmospheric drivers.
The Cryosphere.
821-839.
2012
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Attribution of recent changes in autumn cyclone associated precipitation in the Arctic.
Tellus A.
653-663.
2011
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Sea ice response to an extreme negative phase of the Arctic Oscillation during winter 2009/2010.
Geophysical Research Letters.
2011
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The sea ice mass budget of the Arctic and its future change as simulated by coupled climate models.
Climate Dynamics.
185-200.
2010
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Recent changes in Arctic sea ice melt onset, freezeup, and melt season length.
Journal of Geophysical Research: Oceans.
2009
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Does sea ice influence Greenland ice sheet surface-melt?.
Environmental Research Letters.
2009
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Demographic models and IPCC climate projections predict the decline of an emperor penguin population.
Proceedings of the National Academy of Sciences.
1844-1847.
2009
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The emergence of surface-based Arctic amplification.
The Cryosphere.
11-19.
2009
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Evolution of the 2007-2008 Arctic sea ice cover and prospects for a new record in 2008.
Geophysical Research Letters.
2008
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A younger, thinner Arctic ice cover: Increased potential for rapid, extensive sea-ice loss.
Geophysical Research Letters.
2007
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Arctic sea ice decline: Faster than forecast.
Geophysical Research Letters.
2007
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Perspectives on the Arctic's shrinking sea-ice cover.
Science.
1533-1536.
2007
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Evaluation of the MODIS (MOD10A1) daily snow albedo product over the Greenland ice sheet.
Remote Sensing of Environment.
155-171.
2006
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Impact of surface roughness on AMSR-E sea ice products.
IEEE Transactions on Geoscience and Remote Sensing.
3103-3117.
2006
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Microwave signatures of snow on sea ice: Modeling.
IEEE Transactions on Geoscience and Remote Sensing.
3091-3102.
2006
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Microwave signatures of snow on sea ice: Observations.
IEEE Transactions on Geoscience and Remote Sensing.
3081-3090.
2006
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Snow depth and ice thickness measurements from the Beaufort and Chukchi seas collected during the AMSR-Ice03 campaign.
IEEE Transactions on Geoscience and Remote Sensing.
3009-3020.
2006
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Spatial variability of barrow-area shore-fast sea ice and its relationships to passive microwave emissivity.
IEEE Transactions on Geoscience and Remote Sensing.
3021-3031.
2006
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Analysis of leaf area index and fraction of PAR absorbed by vegetation products from the terra MODIS sensor: 2000-2005.
IEEE Transactions on Geoscience and Remote Sensing.
1829-1842.
2006
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Greenland ice sheet surface mass balance variability (1988-2004) from calibrated polar MM5 output.
Journal of Climate.
2783-2800.
2006
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The value of multiangle measurements for retrieving structurally and radiatively consistent properties of clouds, aerosols, and surfaces.
Remote Sensing of Environment.
495-518.
2005
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Mapping daily snow/ice shortwave broadband albedo from Moderate Resolution Imaging Spectroradiometer (MODIS): The improved direct retrieval algorithm and validation with Greenland in situ measurement.
Journal of Geophysical Research: Atmospheres.
2005
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Tracking the Arctic's shrinking ice cover: Another extreme September minimum in 2004.
Geophysical Research Letters.
2005
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Accuracy assessment of the MODIS 16-day albedo product for snow: comparisons with Greenland in situ measurements.
Remote Sensing of Environment.
46-60.
2005
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A record minimum arctic sea ice extent and area in 2002.
Geophysical Research Letters.
2003
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New methods to infer snow albedo from the MISR instrument with applications to the Greenland ice sheet.
IEEE Transactions on Geoscience and Remote Sensing.
1616-1625.
2002
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Assessment of Greenland albedo variability from the advanced very high resolution radiometer Polar Pathfinder data set.
Journal of Geophysical Research: Atmospheres.
33989-34006.
2001
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Intercomparison between in situ and AVHRR polar pathfinder-derived surface Albedo over Greenland.
Remote Sensing of Environment.
360-374.
2001
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New directions in earth observing: Scientific applications of multiangle remote sensing.
Bulletin of the American Meteorological Society.
2209-2228.
1999
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An intercomparison of DMSP F11- and F13-derived sea ice products.
Remote Sensing of Environment.
132-152.
1998
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Variability of AVHRR-derived clear-sky surface temperature over the Greenland ice sheet.
Journal of Applied Meteorology and Climatology.
23-31.
1998
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Comparison of AVHRR-derived and in situ surface albedo over the Greenland ice sheet.
Remote Sensing of Environment.
262-276.
1997
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Surface temperature from ERS-1 ATSR infrared thermal satellite data in polar regions.
Journal of Applied Meteorology and Climatology.
1231-1239.
1996
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CLIMATE SENSITIVITY STUDIES OF THE GREENLAND ICE-SHEET USING SATELLITE AVHRR, SMMR, SSM/I AND IN-SITU DATA.
Meteorology and Atmospheric Physics.
239-258.
1993
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Changing state of Arctic sea ice across all seasons.
Environmental Research Letters.
2018