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NPS | 2021
The Yukon River basin encompasses 832,000 square-kilometers and is one of Earth's largest boreal-Arctic rivers. Characterized by a long, frozen winter season, the river demonstrates an abrupt…
NPS | 2021
Twenty years ago, ecological studies were often limited by the number of times biologists could find (relocate) their study animals. With the advent and now widespread use of Global Positioning…
NPS | 2021
The snow season has become shorter and the growing season longer over the past 20 years in Alaska's Arctic National Parks. The NPS Arctic Inventory and Monitoring Network (ARCN) uses MODIS (Moderate…
BLM | 2021
Landslides are a major geologic hazard in Oregon. Landslide inventory mapping helps resource managers understand the spatial pattern of existing landslides and provides information to…
BLM | 2021
Coastal erosion, exacerbated by sea-level rise, threatens both infrastructure and natural areas around the world. The King Range National Conservation Area (NCA) is vulnerable to such erosion effects…
BLM | 2021
The emergent proliferation of Synthetic Aperture Radar (SAR) imaging systems, related advancements in image processing and exploitation capabilities, and the increasing availability of analysis-ready…
BLM | 2021
Public lands across the West contain myriad Native American cultural sites that often include surficial stone features such as rings, alignments, and cairns. In 2018, BLM archaeologists from Wyoming’…
BLM | 2021
The invasion of exotic annual grasses is a widespread problem across the western United States. Of particular concern is cheatgrass (Bromus tectorum), which produces continuous mats of fine, highly…
BLM | 2017
The BLM National Operations Center (NOC) has partnered with the BLM Arizona State Office and the Safford Field Office to document and measure the impacts of the HX Dam failure, which occurred in June…
BLM | 2017
The BLM is employing high-resolution commercial satellite imagery as a pilot effort to map saguaro locations within Sonoran Desert National Monument, Arizona. Saguaro are a distinctive cactus species…
BLM | 2017
Hillshades are useful in depicting additional details in terrain and emphasizing variation in topography, which contributes to effective cartographic interpretation. However, digital hillshade…
BLM | 2017
The BLM National Operations Center (NOC) regularly assists field offices with photogrammetric and remote sensing projects involving Unmanned Aerial Systems (UAS) in a variety of natural resource…