Crystal Schaaf
Biographic Data
| ID | 3436361 |
|---|---|
| NAME | Crystal Schaaf |
| GIVEN NAMES | Crystal |
| FAMILY NAME | Schaaf |
| SIGNATURE | SCHAAF C |
| AFFILIATIONS | University of Massachusetts Boston |
| ORCID | 0000-0002-9150-2975 |
| VERIFIED | Yes |
| TOTAL WORKS | 5 |
| TOTAL CITATIONS | 73 |
| WORKS AS AUTHOR | 5 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1991 |
| LATEST PUBLICATION YEAR | 2022 |
| H-INDEX | 1 |
Mid-summer snow-free albedo across the Arctic tundra was mostly stable or increased over the past two decades
Arctic vegetation changes, such as increasing shrub-cover, are expected to accelerate climate warming through increased absorption of incoming radiation and corresponding decrease in summer shortwave albedo. Here we analyze mid-summer shortwave land-surface albedo and its change across the pan-Arctic region based on MODerate resolution Imaging Spectroradiometer satellite observations over the past two decades (2000–2021). In contrast to expectati…
Quantifying the effects of freeze-thaw transitions and snowpack melt on land surface albedo and energy exchange over Alaska and Western Canada
Variations in land surface albedo and snow-cover strongly impact the global biosphere, particularly through the snow-albedo feedback on climate. The seasonal freeze-thaw (FT) transition is coupled with snowpack melt dynamics and strongly impacts surface water mobility and the energy budget in the northern (≥45°N) arctic and boreal region (ABR). However, understanding of the regional variation in snowmelt and its effect on the surface energy budge…
Landsat-8
Landsat 8, a NASA and USGS collaboration, acquires global moderate-resolution measurements of the Earth's terrestrial and polar regions in the visible, near-infrared, short wave, and thermal infrared. Landsat 8 extends the remarkable 40 year Landsat record and has enhanced capabilities including new spectral bands in the blue and cirrus cloud-detection portion of the spectrum, two thermal bands, improved sensor signal-to-noise performance and ass…
Global land cover mapping from Modis
Cultural impacts of severe droughts in the prehistoric Andes
Late in the sixth century, Andean peoples experienced major cultural upheavals, including a notable settlement shift of the classic Mochica culture on the northern Peruvian coast. A recently established annual precipitation record derived from ice cores from the Quelccaya glacier in southern Peru allows assessment of the possible role of climatic disturbances in northern Peru. Both areas are in the same tropical climatic regime. A comparison betw…
Cultural impacts of severe droughts in the prehistoric Andes
Late in the sixth century, Andean peoples experienced major cultural upheavals, including a notable settlement shift of the classic Mochica culture on the northern Peruvian coast. A recently established annual precipitation record derived from ice cores from the Quelccaya glacier in southern Peru allows assessment of the possible role of climatic disturbances in northern Peru. Both areas are in the same tropical climatic regime. A comparison betw…
Cultural impacts of severe droughts in the prehistoric Andes
Late in the sixth century, Andean peoples experienced major cultural upheavals, including a notable settlement shift of the classic Mochica culture on the northern Peruvian coast. A recently established annual precipitation record derived from ice cores from the Quelccaya glacier in southern Peru allows assessment of the possible role of climatic disturbances in northern Peru. Both areas are in the same tropical climatic regime. A comparison betw…
Global land cover mapping from Modis
Landsat-8
Landsat 8, a NASA and USGS collaboration, acquires global moderate-resolution measurements of the Earth's terrestrial and polar regions in the visible, near-infrared, short wave, and thermal infrared. Landsat 8 extends the remarkable 40 year Landsat record and has enhanced capabilities including new spectral bands in the blue and cirrus cloud-detection portion of the spectrum, two thermal bands, improved sensor signal-to-noise performance and ass…
Quantifying the effects of freeze-thaw transitions and snowpack melt on land surface albedo and energy exchange over Alaska and Western Canada
Variations in land surface albedo and snow-cover strongly impact the global biosphere, particularly through the snow-albedo feedback on climate. The seasonal freeze-thaw (FT) transition is coupled with snowpack melt dynamics and strongly impacts surface water mobility and the energy budget in the northern (≥45°N) arctic and boreal region (ABR). However, understanding of the regional variation in snowmelt and its effect on the surface energy budge…
Mid-summer snow-free albedo across the Arctic tundra was mostly stable or increased over the past two decades
Arctic vegetation changes, such as increasing shrub-cover, are expected to accelerate climate warming through increased absorption of incoming radiation and corresponding decrease in summer shortwave albedo. Here we analyze mid-summer shortwave land-surface albedo and its change across the pan-Arctic region based on MODerate resolution Imaging Spectroradiometer satellite observations over the past two decades (2000–2021). In contrast to expectati…
Environmental Science (4 works) · Geography (4 works) · Climate change and permafrost (3 works) · Cryospheric studies and observations (3 works) · Satellite (3 works) · Albedo (alchemy (2 works) · Arctic (2 works) · Arctic and Antarctic ice dynamics (2 works) · Atmospheric sciences (2 works) · Climatology (2 works)