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Here we present an inventory of remotely and field-observed landslides triggered by 2019-2020 Puerto Rico earthquake sequence. The inventory was mapped using pre- and post-event satellite imagery (PR_landslide_inventory_imagery.csv), an extensive collection of field observations (https://doi.org/10.5066/P96QNFMB) and using pre-earthquake lidar as guidance for mapping polygons with more precise locations and geometries (2015 - 2017 USGS Lidar DEM: Puerto Rico dataset). The inventory consists of a shapefile of 309 polygons (PR_landslide_inventory_pts.shp) outlining the source area and deposits together. It also includes a point inventory (PR_landslide_inventory_pts.shp) marking 170 individual displaced boulders that...
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Regional regression equations were calculated in Puerto Rico with generalized least squares techniques to estimate flood frequency statistics at ungaged locations using drainage area as the only explanatory variable. The island was divided into 2 regions to minimize residuals. The region division that resulted in lower and more balanced residuals runs primarily north-south near the center of the island, mostly along an 8-digit hydrologic unit code (HUC8) boundary. The division line runs through a HUC8 polygon on the southern end of the island, but care was taken to include entire watersheds and consideration was given where hydrologic and physiographic properties differed. This data release includes geographic information...
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Near-surface site characteristics are critical for accurately modeling ground motion, which in turn influences seismic hazard analysis and design of critical infrastructure. Currently, there are many strong motion accelerometers within the Advanced National Seismic System (ANSS) that are missing this information. We use a Geographic Information Systems (GIS) based framework to intersect the site coordinates of approximately 5,500 ANSS accelerometers located throughout the United States and its territories with geology and velocity information. We consider: (1) surficial geology from digitized geologic maps (Horton, 2017; Wilson et al., 2015; Sherrod et al., 2007; Bawiec, 1999; Saucedo, 2005; Bedrossian et al., 2012;...
Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANSS, Alabama, American Samoa, Arizona, Arkansas, All tags...
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The National Park Service (NPS) requests burn severity assessments through an agreement with the U.S. Geological Survey (USGS) to be completed by analysts with the Monitoring Trends in Burn Severity (MTBS) Program. The MTBS Program assesses the frequency, extent, and magnitude (size and severity) of all large wildland fires (wildfires and prescribed fires) in the conterminous United States (CONUS), Alaska, Hawaii, and Puerto Rico for the period 1984 and beyond. All fires reported as greater than 1,000 acres in the western U.S. and greater than 500 acres in the eastern U.S. are mapped across all ownerships. MTBS produces a series of geospatial and tabular data for analysis at a range of spatial, temporal, and thematic...
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The National Park Service (NPS) requests burn severity assessments through an agreement with the U.S. Geological Survey (USGS) to be completed by analysts with the Monitoring Trends in Burn Severity (MTBS) Program. The MTBS Program assesses the frequency, extent, and magnitude (size and severity) of all large wildland fires (wildfires and prescribed fires) in the conterminous United States (CONUS), Alaska, Hawaii, and Puerto Rico for the period 1984 and beyond. All fires reported as greater than 1,000 acres in the western U.S. and greater than 500 acres in the eastern U.S. are mapped across all ownerships. MTBS produces a series of geospatial and tabular data for analysis at a range of spatial, temporal, and thematic...
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The National Park Service (NPS) requests burn severity assessments through an agreement with the U.S. Geological Survey (USGS) to be completed by analysts with the Monitoring Trends in Burn Severity (MTBS) Program. The MTBS Program assesses the frequency, extent, and magnitude (size and severity) of all large wildland fires (wildfires and prescribed fires) in the conterminous United States (CONUS), Alaska, Hawaii, and Puerto Rico for the period 1984 and beyond. All fires reported as greater than 1,000 acres in the western U.S. and greater than 500 acres in the eastern U.S. are mapped across all ownerships. MTBS produces a series of geospatial and tabular data for analysis at a range of spatial, temporal, and thematic...
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The National Park Service (NPS) requests burn severity assessments through an agreement with the U.S. Geological Survey (USGS) to be completed by analysts with the Monitoring Trends in Burn Severity (MTBS) Program. The MTBS Program assesses the frequency, extent, and magnitude (size and severity) of all large wildland fires (wildfires and prescribed fires) in the conterminous United States (CONUS), Alaska, Hawaii, and Puerto Rico for the period 1984 and beyond. All fires reported as greater than 1,000 acres in the western U.S. and greater than 500 acres in the eastern U.S. are mapped across all ownerships. MTBS produces a series of geospatial and tabular data for analysis at a range of spatial, temporal, and thematic...
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The National Park Service (NPS) requests burn severity assessments through an agreement with the U.S. Geological Survey (USGS) to be completed by analysts with the Monitoring Trends in Burn Severity (MTBS) Program. The MTBS Program assesses the frequency, extent, and magnitude (size and severity) of all large wildland fires (wildfires and prescribed fires) in the conterminous United States (CONUS), Alaska, Hawaii, and Puerto Rico for the period 1984 and beyond. All fires reported as greater than 1,000 acres in the western U.S. and greater than 500 acres in the eastern U.S. are mapped across all ownerships. MTBS produces a series of geospatial and tabular data for analysis at a range of spatial, temporal, and thematic...
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This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their...
Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Alabama, Alabama, Alaska, Arizona, All tags...
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Album caption: Laguna Condado in San Juan. Fort San Geronimo is in the left center near the break in the shoreline. No index card.
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Album caption: This sailboat was used to travel to Isla Caja de Muertos to complete topographic mapping of the small island southeast of Ponce. The high mountains in the background are in the Cordillera Central. The highest point in Puerto Rico is Cerro de Punta, 4389 feet above sea level, and which can be seen in this photograph. Columbus followed the south coast of the island and in these waters on his second voyage in 1493. (Photos 24 and 25 were taken by me in December 1942 with a Rolleiflex camera.) No index card.
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Album caption: An aerial view of the Karst limestone formation near Arecibo taken by the Aero Service Corporation in 1940 while photgraphing the island for topographic mapping. A disappearing stream can be seen in the upper left. The summits vary in height. Many are several hundred feet high above the adjacent depression. Very few people live in the type of topography. Only the rich soil in the depressions can be cultivated. No index card. Note: May be copyrighted.
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Album caption: Rio Blanco Valley from a point on Insular Highway No. 191 south of El Yunque. The smokestack is at Central Pasto Viejo. Sugar cane is grown extensively in these valleys. No index card.
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Album caption: Partly cultivated and sparsely populated area in the Cordillera Central. No index card.
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Album caption: A concrete bridge on a new highway in the interior. No index card.
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Album caption: Eroded "haystack" on the Rio rande de Arecibo. No index card.


map background search result map search result map National Wetlands Inventory - Wetlands U.S. Coast Guard station. San Juan, Puerto Rico. 1922. Baggage transfer at Isabela, Puerto Rico. 1922. Sailboat used to travel to Isla Caja de Muertos to complete topographic mapping. Puerto Rico. 1942. Rio Blanco Valley. Puerto Rico. n.d. Concrete bridge on a new highway. Puerto Rico. n.d. Aerial view of the Karst limestone formation near Arecibo, Puerto Rico. 1940. Laguna Condado. San Juan, Puerto Rico. 1935. Partly cultivated area in the Cordillera Central. Puerto Rico. 1935. Puente Las Vegas over the Rio Yauco. Puerto Rico. 1935. Eroded "haystack" on the Rio Grande de Arecibo. Puerto Rico. 1935. Puerto Rico 2015 State Wildlife Action Plan Species of Greatest Conservation Need Inventory of landslides triggered by the 2020 Puerto Rico earthquake sequence Regions for regional regression equations Compilation of Geologic and Seismic Velocity Characteristics at Advanced National Seismic System Strong Motion Accelerometer Sites National Park Service Thematic Burn Severity Mosaic in 2018 (ver. 6.0, January 2024) National Park Service Thematic Burn Severity Mosaic in 2013 (ver. 6.0, January 2024) National Park Service Thematic Burn Severity Mosaic in 2006 (ver. 6.0, January 2024) National Park Service Thematic Burn Severity Mosaic in 1996 (ver. 6.0, January 2024) National Park Service Thematic Burn Severity Mosaic in 1995 (ver. 6.0, January 2024) Inventory of landslides triggered by the 2020 Puerto Rico earthquake sequence Regions for regional regression equations U.S. Coast Guard station. San Juan, Puerto Rico. 1922. Baggage transfer at Isabela, Puerto Rico. 1922. Partly cultivated area in the Cordillera Central. Puerto Rico. 1935. Puerto Rico 2015 State Wildlife Action Plan Species of Greatest Conservation Need Sailboat used to travel to Isla Caja de Muertos to complete topographic mapping. Puerto Rico. 1942. Rio Blanco Valley. Puerto Rico. n.d. Concrete bridge on a new highway. Puerto Rico. n.d. Aerial view of the Karst limestone formation near Arecibo, Puerto Rico. 1940. Laguna Condado. San Juan, Puerto Rico. 1935. Puente Las Vegas over the Rio Yauco. Puerto Rico. 1935. Eroded "haystack" on the Rio Grande de Arecibo. Puerto Rico. 1935. National Wetlands Inventory - Wetlands National Park Service Thematic Burn Severity Mosaic in 1995 (ver. 6.0, January 2024) National Park Service Thematic Burn Severity Mosaic in 2013 (ver. 6.0, January 2024) National Park Service Thematic Burn Severity Mosaic in 1996 (ver. 6.0, January 2024) National Park Service Thematic Burn Severity Mosaic in 2018 (ver. 6.0, January 2024) Compilation of Geologic and Seismic Velocity Characteristics at Advanced National Seismic System Strong Motion Accelerometer Sites National Park Service Thematic Burn Severity Mosaic in 2006 (ver. 6.0, January 2024)