Thomas E. Shaw
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View article: Mountain glaciers recouple to atmospheric warming over the twenty-first century
Mountain glaciers recouple to atmospheric warming over the twenty-first century Open
Recent studies have argued that air temperatures over many mountain glaciers are decoupled from their surroundings, leading to a local cooling which could slow down melting. Here we use a compilation of on-glacier meteorological observatio…
View article: Snowfall decrease in recent years undermines glacier health and meltwater resources in the Northwestern Pamirs
Snowfall decrease in recent years undermines glacier health and meltwater resources in the Northwestern Pamirs Open
Central Asia hosts some of the world’s last relatively healthy mountain glaciers and is heavily dependent on snow and ice melt for downstream water supply, though the causes of this stable glacier state are not known. We combine recent in-…
View article: DebDaB: a database of supraglacial debris thickness and physical properties
DebDaB: a database of supraglacial debris thickness and physical properties Open
Rocky debris covers around 7.3 % of the global glacier area, influencing ice melt rates and the surface mass balance of glaciers, making the dynamics and hydrology of debris-covered glaciers distinct from those of clean-ice glaciers. Accur…
View article: The Second Hintereisferner Experiment (HEFEX II): Initial Insights into Boundary Layer Structure and Surface–Atmosphere Exchange Processes from Intensive Observations at a Valley Glacier
The Second Hintereisferner Experiment (HEFEX II): Initial Insights into Boundary Layer Structure and Surface–Atmosphere Exchange Processes from Intensive Observations at a Valley Glacier Open
Mountain glaciers offer opportunities to observe boundary layer exchanges in conditions characterized by predominantly stable stratification, thermally driven winds, and varying surface roughness. Logistical challenges involved in instrume…
View article: DCG-MIP: The Debris-Covered Glacier melt Model Intercomparison exPeriment
DCG-MIP: The Debris-Covered Glacier melt Model Intercomparison exPeriment Open
In a warming world of glacier changes, the scientific community has dedicated increasing attention to debris-covered glaciers and their response to climate. A variety of models with distinct complexity and data requirements have been devel…
View article: Thin and ephemeral snow shapes melt and runoff dynamics in the Peruvian Andes
Thin and ephemeral snow shapes melt and runoff dynamics in the Peruvian Andes Open
The snow and glaciers of the Peruvian Andes provide vital water supplies in a region facing water scarcity and substantial glacier change. However, there remains a lack of understanding of snow processes and quantification of the contribut…
View article: Method Dependence in Thermal Conductivity and Aerodynamic Roughness Length Estimates on a Debris‐Covered Glacier
Method Dependence in Thermal Conductivity and Aerodynamic Roughness Length Estimates on a Debris‐Covered Glacier Open
Rock debris partially covers glaciers worldwide, with varying extents and distributions, and controls sub‐debris melt rates by modifying energy transfer from the atmosphere to the ice. Two key physical properties controlling this energy ex…
View article: Precipitation phase drives seasonal and decadal snowline changes in high mountain Asia
Precipitation phase drives seasonal and decadal snowline changes in high mountain Asia Open
Snow cover is of key importance for water resources in high mountain Asia (HMA) and is expected to undergo extensive changes in a warming climate. Past studies have quantified snow cover changes with satellite products of relatively low sp…
View article: Inferring glacier meteorology with physical modeling and remote sensing
Inferring glacier meteorology with physical modeling and remote sensing Open
Meteorology is crucial to understand the rapid response of mountain glaciers to climate warming, but is often challenging to observe and simulate due to site inaccessibility, instrument maintenance and the complex interactions between glac…
View article: Reconstructing the water balance of selected glacierized catchments in High Mountain Asia since 197
Reconstructing the water balance of selected glacierized catchments in High Mountain Asia since 197 Open
In High Mountain Asia (HMA), declines in water stored in glaciers and seasonal snowpacks have been widespread in recent decades. Changes are however highly heterogeneous, with glaciers in the Pamirs experiencing near-neutral mass balance w…
View article: Precipitation Uncertainty Hampers the Understanding of Glacier Response in High Mountain Asia
Precipitation Uncertainty Hampers the Understanding of Glacier Response in High Mountain Asia Open
High Mountain Asia (HMA) provides crucial water resources to more than 1.5 billion people and accurate quantification of high elevation precipitation in this region is essential for understanding the hydrological cycle, patterns of ongoing…
View article: DebDab: A database of physical properties of supraglacial debris
DebDab: A database of physical properties of supraglacial debris Open
Rocky debris layers cover an increasing portion of glacier ablation areas as glaciers thin and retreat in response to climate change, progressively altering surface melt rates. However, determining the thickness and physical properties of …
View article: Evaluating the Performance of Sentinel‐1 SAR Derived Snow Depth Retrievals Over the Extratropical Andes Cordillera
Evaluating the Performance of Sentinel‐1 SAR Derived Snow Depth Retrievals Over the Extratropical Andes Cordillera Open
Monitoring and estimating mountain snowpack mass over regional scales is still a challenge because of the inadequacy of observational networks in capturing spatiotemporal variability, and limitations in remotely sensed retrievals. Recent w…
View article: DebDab: A database of supraglacial debris thickness and physical properties
DebDab: A database of supraglacial debris thickness and physical properties Open
Rocky debris covers around 7.3 % of the global glacier area, influencing ice melt rates and the surface mass balance of glaciers, making the dynamics and hydrology of debris-covered glaciers distinct from those of clean-ice glaciers. Accur…
View article: Observed and projected declines in glacier albedo across the Third Pole in the 21st century
Observed and projected declines in glacier albedo across the Third Pole in the 21st century Open
Glaciers are crucial water resources in the Third Pole (the Tibetan Plateau and its surroundings) and are shrinking in response to climate change. Glacier albedo is an expression of glacier interactions with climate and dust/black carbon, …
View article: Land surface modeling informed by earth observation data: toward understanding blue–green–white water fluxes in High Mountain Asia
Land surface modeling informed by earth observation data: toward understanding blue–green–white water fluxes in High Mountain Asia Open
Mountains are important suppliers of freshwater to downstream areas, affecting large populations in particular in High Mountain Asia (HMA). Yet, the propagation of water from HMA headwaters to downstream areas is not fully understood, as i…
View article: Snow accumulation dynamics and its contribution to the hydrology of a glacierized catchment in the Northern Pamirs
Snow accumulation dynamics and its contribution to the hydrology of a glacierized catchment in the Northern Pamirs Open
Mountain glaciers are shrinking at accelerating rates due to enhanced ablation and reduced accumulation. In High Mountain Asia (HMA), recent glacier and snow changes have been highly heterogeneous, due to differences in accumulation regime…
View article: On the importance of the cryosphere in a tropical Andean basin: the past, present and future of the glaciers and runoff in the Rio Santa
On the importance of the cryosphere in a tropical Andean basin: the past, present and future of the glaciers and runoff in the Rio Santa Open
The Peruvian Andes contains the largest mass of glaciers in the tropics and these glaciers have shown considerable decay over the past 4 decades and into the present day. The historic and future runoff is tied to the cryospheric changes in…
View article: The pulse of the Pamirs: using remote sensing and in situ data to investigate accelerating glacier mass loss in the Pamirs
The pulse of the Pamirs: using remote sensing and in situ data to investigate accelerating glacier mass loss in the Pamirs Open
In situ and satellite observations have unambiguously indicated the hastening rate of global glacier decay over the past two decades. In the region affected by the Karakoram Anomaly, however, the near-zero mass change and relatively high u…
View article: Inferring Debris Properties on Debris-Covered Glaciers: Implications for Glacier Modelling
Inferring Debris Properties on Debris-Covered Glaciers: Implications for Glacier Modelling Open
Debris, ranging from thin surface dust to medial moraines and thick, continuous layers in ablation zones, partially covers glaciers all around the world. By modifying energy transfer from the atmosphere to the ice, the supraglacial debris …
View article: Temperature Decoupling on the World’s Mountain Glaciers
Temperature Decoupling on the World’s Mountain Glaciers Open
The development of a katabatic boundary layer can decouple near surface air temperature changes over glaciers from their surrounding environment during the ablation season, impacting the response of glaciers to ongoing climate change. Curr…
View article: Spatially distributed streamflow buffering by glaciers during recent droughts in Switzerland
Spatially distributed streamflow buffering by glaciers during recent droughts in Switzerland Open
During dry and hot years in the Swiss Alps, melt water from glaciers can moderate streamflow deficits caused by reduced precipitation and enhanced evapotranspiration rates. However, little is known about how glacier melt water contribution…
View article: Local cooling and drying induced by Himalayan glaciers under global warming
Local cooling and drying induced by Himalayan glaciers under global warming Open
Understanding the response of Himalayan glaciers to global warming is vital because of their role as a water source for the Asian subcontinent. However, great uncertainties still exist on the climate drivers of past and present glacier cha…
View article: Hydrological regimes and evaporative flux partitioning at the climatic ends of high mountain Asia
Hydrological regimes and evaporative flux partitioning at the climatic ends of high mountain Asia Open
High elevation headwater catchments are complex hydrological systems that seasonally buffer water and release it in the form of snow and ice melt, modulating downstream runoff regimes and water availability. In High Mountain Asia (HMA), wh…
View article: Local Controls on Near‐Surface Glacier Cooling Under Warm Atmospheric Conditions
Local Controls on Near‐Surface Glacier Cooling Under Warm Atmospheric Conditions Open
The near‐surface boundary layer can mediate the response of mountain glaciers to external climate, cooling the overlying air and promoting a density‐driven glacier wind. The fundamental processes are conceptually well understood, though th…
View article: Model output data to "Land surface modeling in the Himalayas: on the importance of evaporative fluxes for the water balance of a high elevation catchment"
Model output data to "Land surface modeling in the Himalayas: on the importance of evaporative fluxes for the water balance of a high elevation catchment" Open
We provide i) gridded initial conditions (.tif), ii) modeled gridded monthly outputs (.tif), and iii) modeled hourly outputs at the station locations (.txt) for the hydrological year 2019. Information about the variables and units can be f…
View article: Model output data to "Land surface modeling in the Himalayas: on the importance of evaporative fluxes for the water balance of a high elevation catchment"
Model output data to "Land surface modeling in the Himalayas: on the importance of evaporative fluxes for the water balance of a high elevation catchment" Open
We provide i) gridded initial conditions (.tif), ii) modeled gridded monthly outputs (.tif), and iii) modeled hourly outputs at the station locations (.txt) for the hydrological year 2019. Information about the variables and units can be f…
View article: Land Surface Modeling in the Himalayas: On the Importance of Evaporative Fluxes for the Water Balance of a High‐Elevation Catchment
Land Surface Modeling in the Himalayas: On the Importance of Evaporative Fluxes for the Water Balance of a High‐Elevation Catchment Open
High Mountain Asia (HMA) is among the most vulnerable water towers globally and yet future projections of water availability in and from its high‐mountain catchments remain uncertain, as their hydrologic response to ongoing environmental c…