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Bernard Chouet is a Swiss-American seismologist who worked with the United States Geological Survey (USGS). He is best known for his research on volcanic seismicity, specifically his discovery that long-period (LP) seismic events are reliable precursors to explosive volcanic eruptions. His methodolo...
The Geological Atlas of the United States, compiled by the U.S. Geological Survey, presents a comprehensive regional overview of American geology. Beginning in 1894, this atlas systematically documents geological formations, topography, and mineral deposits across the nation. It is a valuable resour...
Robert L. Christiansen is an American volcanologist and geologist who worked extensively with the United States Geological Survey (USGS). He is best known for his detailed field mapping and research in the 1960s and 1970s, which helped define the massive volcanic caldera system beneath Yellowstone N...
Peter W. Lipman is an American volcanologist who spent his career with the United States Geological Survey (USGS). His research focused on explosive silicic volcanism, caldera formation, and large-volume ignimbrite eruptions, with particular emphasis on the San Juan volcanic field in Colorado. Lipma...
E-an Zen (1928–2014) was a Taiwanese-American geologist who served as a senior research geologist with the United States Geological Survey (USGS). He was widely recognized for his extensive research on the metamorphic geology and structural evolution of the Appalachian Mountains. Later in his career...
Henry Gannett was an American cartographer instrumental in shaping modern surveying techniques. His long tenure as chief geographer for the U.S. Geological Survey produced foundational maps and data sets. He co-established the National Geographic Society furthering geographic knowledge. Gannett’s wo...
Clarence King (1842–1901) was an American geologist, mountaineer, and author who played a foundational role in the development of American earth sciences. He is best known for leading the Geological Exploration of the Fortieth Parallel and serving as the first director of the United States Geologica...
John Wesley Powell was an American geologist and cartographer instrumental in understanding the American West. His 1869 expedition through the Grand Canyon provided the first detailed survey of that immense canyon system. Powell’s subsequent work for the U.S. Geological Survey shaped early maps and...
Joseph Wooden was a USGS geologist who directed the SHRIMP ion microprobe facility at Stanford, significantly advancing U-Pb zircon geochronology.
Landsat 8 is an active Earth observation satellite operated by NASA and the USGS. This mission continues a decades-long program providing consistent imagery of our planet. The satellite utilizes Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS) instruments to measure land surface temp...
The Atlas of Mars is a geological reference published by the United States Geological Survey (USGS) to map the topography and geography of the Martian surface. It utilizes data from various NASA missions to detail the planet's terrain, including its craters, volcanoes, and valleys. This cartographic...
John P. Snyder was an American cartographer who lived from 1926 to 1997 and specialized in the mathematical design and analysis of map projections. He developed the Space Oblique Mercator projection for mapping imagery collected by Landsat satellites as they followed their orbital paths. He also wor...
American geologist Julia Gardner notably specialized in Cenozoic mollusks, producing foundational paleontological monographs and mapping the US Gulf Coastal Plain in the early 20th century.
Landsat 7 is an Earth observation satellite launched on April 15, 1999, as part of the joint NASA–U.S. Geological Survey Landsat program. It carries the Enhanced Thematic Mapper Plus (ETM+) sensor, which captures imagery in eight spectral bands at 15-to-60-meter resolution. In May 2003, the satellit...
Oscar Sherman Adams was an American geodesist and mathematician who produced foundational reference works on the mathematics of map projections. He authored "Elements of Map Projection" (1921), which systematically detailed the construction and properties of conformal, equal-area, and other projecti...
Launched in September 2021, Landsat 9 is an Earth observation satellite jointly managed by NASA and the U.S. Geological Survey. The spacecraft continues the five-decade Landsat program record of monitoring land surfaces. It is equipped with the Operational Land Imager 2 and the Thermal Infrared Sens...
Lucile M. Jones is an American seismologist who spent decades working with the United States Geological Survey (USGS) and is widely recognized for her public communication regarding earthquake preparedness. Her scientific research has heavily focused on the seismic hazards of Southern California, pa...
The National Atlas of the United States is a federal cartographic reference that presents the country's physical, environmental, demographic, economic, and historical geography. An early national atlas appeared in 1874, while later editions and digital services brought together maps and data produce...
Susan Hough is an American seismologist working with the United States Geological Survey (USGS) who specializes in earthquake hazards and historical seismicity. Her scientific research involves compiling historical earthquake catalogs, analyzing seismicity in Southern California, and investigating t...
Julia Anna Gardner (1882–1960) was an American geologist and micropaleontologist who spent her career with the United States Geological Survey (USGS) specializing in Cenozoic mollusks. During World War II, she applied her geological expertise to a military intelligence project, analyzing sand attach...
Christina Heliker is an American volcanologist with the USGS known for her extensive research monitoring the eruptive activity and hazards of Hawaiian volcanoes.
Charles H. Deetz was a 20th-century American cartographer who worked for the United States Coast and Geodetic Survey. He co-authored Elements of Map Projection with Oscar Sherman Adams, first published in 1921, which became a long-standing technical reference on the mathematics of map projections. T...
Elizabeth Cochran is an American seismologist and geophysicist who works with the United States Geological Survey (USGS) in Pasadena, California. Her research focuses on earthquake processes, aftershock sequences, induced seismicity, and the application of seismic noise to monitor environmental chan...
USGS research cartographer who directed the Center of Excellence for Geospatial Information Science (CEGIS) and contributed to national mapping standards and geospatial research.
Marcus Baker was an American geographer and founding member of the National Geographic Society, notable for mapping the Alaska territory.
Donald Peterson was an American scientist recognized for his valuable contributions to geological research and the broader advancement of Earth science disciplines.
