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USGS | 2015
Remote sensing glacier mapping approaches have typically required a substantial time investment from image analysts to select appropriate cloud-free scenes, set threshold values for image…
USGS | 2015
In 2015, NASA, the National Geospatial-Intelligence Agency (NGA), and the USGS released a collection of higher resolution (i.e., more detailed) elevation datasets for most of the globe. The broad…
USGS | 2015
Until recently, Landsat imagery has not been commonly used to investigate the link between long-term climate trends, extreme weather events, and vegetation response, in part because of the on-site…
USGS | 2015
Many Arctic species synchronize their migrations and reproductive cycles with the timing of spring onset to optimize the availability of food resources. Rapid warming in the Arctic could advance…
USGS | 2015
Previous research has shown that coastal Louisiana has undergone a net change in wetland area of approximately –1,883 square miles from 1932 to 2010. This net change in land area amounts to a…
USGS | 2015
The USGS Western Geographic Science Center’s project for Remote Sensing Studies of Phenology-Carbon-Climate Relations (PCCR) uses satellite- and ground-based remote sensing to address one of the most…
USGS | 2015
The USGS EROS Land Change Monitoring, Assessment, and Projection (LCMAP) initiative centers on structured, operational, ongoing, and timely collection and delivery of accurate and relevant data,…
USGS | 2015
Researchers at the USGS have developed the FOREcasting SCEnarios of Land-Cover Change (FORE-SCE) model, which is based on consistent and systematic historical data derived from Landsat imagery of…
USGS | 2015
Mass losses from Alaska’s glaciers are both locally and globally important in terms of downstream ecosystem impacts and sea-level rise. Generating regional mass balance estimates is challenging due…
USGS | 2015
Recent reports of permafrost degradation are widespread and models indicate that much of the near-surface permafrost in the northern hemisphere will likely disappear by the end of the current century…
USGS | 2015
A quantitative understanding of snow accumulation on glaciers is essential to understanding glacier mass balance and provides insights into a wide range of scientific and resource management topics.…
USGS | 2015
Population viability analysis (PVA) is a modeling tool used to predict the probability that a population will persist under projected future conditions. A new study funded by NASA will develop…