The EarthNow! Landsat Image Viewer displays imagery in near real-time as Landsat satellites orbit the Earth. Along with the near real-time video stream, EarthNow! also replays acquisition recordings from previous Landsat overpasses. When Landsat satellites are out of viewing range of a ground station, the most recent overpass is displayed.
Kristi Sayler
Kristi Sayler is a physical scientist with the US Geological Survey at the USGS Earth Resources Observation and Science (EROS) Center in Sioux Falls, SD.
Kristi Sayler is a physical scientist with the US Geological Survey at the USGS Earth Resources Observation and Science (EROS) Center in Sioux Falls, SD. She has worked on numerous projects involving mapping land cover and land use change using remotely sensed data. She was one of the original team members on the Land Cover Trends project, helping both with project design and land cover mapping activities. In 2010, this project completed one of the first ever assessments of 1973-2000 land-cover change for the conterminous U.S. She has also helped with the development of a scenario-based land-cover projection model called Forecasting Scenarios of Land-use Change (FORE-SCE). The model has been successfully used for applications examining the impacts of projected land cover change on carbon dynamics, climate, and regional hydrology. She has more recently become involved with the Land Change Monitoring Assessment and Projection (LCMAP) science team contributing to the Assessment Team’s analysis of current and historical processes of cover and change. In 2016, Kristi also took on a supervision role for members of the Integrated Science and Application Branch at EROS. In April 2020, Kristi became the Project Manager for the LSDS Science Research and Development (LSRD) project. This project provides science consultation and support across the formulation, development, and operations phases of the Landsat missions which includes performing algorithm development and validation for the generation of advanced science data products to enable monitoring of land surface change, conducting and evaluating technology investigations related to new sensor and science data processing capabilities, and producing and distributing provisional science products for community evaluation to facilitate product generation capabilities from research to operations. The LSRD project also maintains the Landsat Missions Website and conducts Landsat user community outreach to communicate Landsat mission objectives, capabilities, and accomplishments.
Education and Certifications
1994 Bachelor of Science in Mathematics, with Computer Science minor, South Dakota School of Mines and Technology
1998 Master of Science in Geography, South Dakota State University
Science and Products
Land Cover Trends and Assessments
Land Cover Trends
Developing an annual land surface temperature from 1985 to present for select international sites: First Outputs Developing an annual land surface temperature from 1985 to present for select international sites: First Outputs
Land surface thermal feature change monitoring in urban and non-urban interface from 1985 to present (ver. 6.0, July 2025) Land surface thermal feature change monitoring in urban and non-urban interface from 1985 to present (ver. 6.0, July 2025)
Modeled 2030 land cover for the Northern Glaciated Plains ecoregion Modeled 2030 land cover for the Northern Glaciated Plains ecoregion
Land Cover Trends Dataset, 2000-2011 Land Cover Trends Dataset, 2000-2011
The EarthNow! Landsat Image Viewer displays imagery in near real-time as Landsat satellites orbit the Earth. Along with the near real-time video stream, EarthNow! also replays acquisition recordings from previous Landsat overpasses. When Landsat satellites are out of viewing range of a ground station, the most recent overpass is displayed.
Monitoring long-term changes of urban surface temperature using time-series land cover and remote sensing data across 50 major cities in the United States Monitoring long-term changes of urban surface temperature using time-series land cover and remote sensing data across 50 major cities in the United States
The 50-year Landsat collection 2 archive The 50-year Landsat collection 2 archive
Improving temporal frequency of Landsat surface temperature products using the gap-filling algorithm Improving temporal frequency of Landsat surface temperature products using the gap-filling algorithm
Conterminous United States land-cover change (1985-2016): New insights from annual time series Conterminous United States land-cover change (1985-2016): New insights from annual time series
Land change monitoring, assessment, and projection Land change monitoring, assessment, and projection
Lessons learned implementing an operational continuous United States national land change monitoring capability: The Land Change Monitoring, Assessment, and Projection (LCMAP) approach Lessons learned implementing an operational continuous United States national land change monitoring capability: The Land Change Monitoring, Assessment, and Projection (LCMAP) approach
Human drivers, biophysical changes, and climatic variation affecting contemporary cropping proportions in the northern prairie of the U.S Human drivers, biophysical changes, and climatic variation affecting contemporary cropping proportions in the northern prairie of the U.S
Parcels versus pixels: modeling agricultural land use across broad geographic regions using parcel-based field boundaries Parcels versus pixels: modeling agricultural land use across broad geographic regions using parcel-based field boundaries
Status and trends of land change in the Eastern United States—1973 to 2000 Status and trends of land change in the Eastern United States—1973 to 2000
Modeled historical land use and land cover for the conterminous United States Modeled historical land use and land cover for the conterminous United States
Regional differences in upland forest to developed (urban) land cover conversions in the conterminous U.S., 1973–2011 Regional differences in upland forest to developed (urban) land cover conversions in the conterminous U.S., 1973–2011
Status and trends of land change in selected U.S. ecoregions - 2000 to 2011 Status and trends of land change in selected U.S. ecoregions - 2000 to 2011
Science and Products
Land Cover Trends and Assessments
Land Cover Trends
Developing an annual land surface temperature from 1985 to present for select international sites: First Outputs Developing an annual land surface temperature from 1985 to present for select international sites: First Outputs
Land surface thermal feature change monitoring in urban and non-urban interface from 1985 to present (ver. 6.0, July 2025) Land surface thermal feature change monitoring in urban and non-urban interface from 1985 to present (ver. 6.0, July 2025)
Modeled 2030 land cover for the Northern Glaciated Plains ecoregion Modeled 2030 land cover for the Northern Glaciated Plains ecoregion
Land Cover Trends Dataset, 2000-2011 Land Cover Trends Dataset, 2000-2011
The EarthNow! Landsat Image Viewer displays imagery in near real-time as Landsat satellites orbit the Earth. Along with the near real-time video stream, EarthNow! also replays acquisition recordings from previous Landsat overpasses. When Landsat satellites are out of viewing range of a ground station, the most recent overpass is displayed.
The EarthNow! Landsat Image Viewer displays imagery in near real-time as Landsat satellites orbit the Earth. Along with the near real-time video stream, EarthNow! also replays acquisition recordings from previous Landsat overpasses. When Landsat satellites are out of viewing range of a ground station, the most recent overpass is displayed.