Alpine/Tundra - Earthdata
Jan 24, 2019 · Alpine/Tundra Find Data Habitat found in the zone on mountain tops between permanent snow and the cold limits of trees, or in arctic regions, characterized by very low winter temperatures, short cool summers, permafrost below a surface layer subject to summer melt, short growing season, and low precipitation.
Updated Dataset for Boreal and Tundra Surface Water Extent
Jan 24, 2019 · The Surface Water Extent, Boreal and Tundra Regions, North America, 1991-2011, dataset (doi: 10.3334/ORNLDAAC/1324) was first released in June 2016; this update corrects spatial reference information for GeoTIFF files and supersedes all earlier data files.
Alpine/Tundra RSS - Earthdata
Earthdata | Alpine/Tundra RSS The dataset, which is part of NASA’s Arctic Boreal Vulnerability Experiment (ABoVE), enables comparisons of changes in surface water extent spanning 20 years. Updated Dataset for Boreal and Tundra Surface Water Extent
In the Arctic Darkness - Earthdata
The tundra’s top layer, called the active layer, thaws in the summer and freezes in winter, unlike the permafrost underneath that stays frozen all year. While Zona’s team only saw flat or hilly landscapes with squat vegetation, their colleagues in NASA's Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) viewed the tundra’s ...
| NASA Earthdata
Earthdata is the home for full and open access to NASA's Earth science data collections, accelerating scientific advancement for societal benefit.
40 began in 2009, and remote sensing data stretches back to 2002. The study calculated evaporation from 2002 to 2012, and even in that time
Riding the Permafrost Express | NASA Earthdata
Dec 9, 2024 · To prevent structural damage from thawing permafrost, engineers have developed various methods for maintaining stable temperatures below buildings and roads, including painting roads to increase surface reflectance, elevating buildings on pilings above the ground, and using thermo siphons—metal tubes placed along roads or around buildings that help remove heat …
Karl Rittger, Institute of Arctic and Alpine Research, University of Colorado Purpose: Monitoring of snow cover and extent Study Objective: Evaluate the use of commercial imagery for deriving Normalized Difference Snow Index (NDSI), and compare against estimates derived from imagery acquired by the Airborne Snow Observatory (ASO). Imagery ...
Sea Level Rise | NASA Earthdata
Tide gauge records of sea level date back more than 200 years, with some records extending back to 1807. The acquisition of global sea level height data calibrated and processed for scientific research, however, dates back only to the launch of the first satellite ocean altimetry missions in the 1990s.
Glacier Power: What is Glacier Anatomy? | NASA Earthdata
The accumulation (input) zone is where a glacier gains snow and ice through snowfall and compression. Ice begins to flow like a conveyor belt, driven by gravity and ever mounting snows.