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USGS Earth Explorer This dataset represents natural color, leaf-off, 1 foot high-accuracy orthorectified aerial imagery, acquired by the Los Angeles Regional Imagery Consortium (LAR-IAC) in winter 2010/2011, and made public with the partnership of the US Geological Survey (USGS). The DEM represents bare earth, whereas a related product (DSM) contains elevations and includes [...]
100 Meter National Grid for Los Angeles County Layering The US Geological Survey has made its standard topo maps available for download through The National Map Viewer. NOTE – through research I have found that the USGS topo Store is a better place to go to download the maps. Click here to go to the store There are now [...] USGS CLICK site This site is a valuable resource for downloading LIDAR and Elevation data, including recent hi-resolution LIDAR along the coastlines of the United States. Click to go to the USGS Center for LIDAR Information Coordination and Knowledge (CLICK). CAMS Data (October 2011) Current data date: August 2012 – we will be releasing new versions of this data periodically. Important note: This file is not final – it is an intermediate step and should be used with the understanding that further work is being performed. Description The LA County Street Center TIGER [...] NOAA provides a wealth of GIS data, including updates of its weather predictions. Here are some useful links: The NWS GIS Data Portal, where you can download kml and shapefiles. From there, you can go to: The NWS Web Services Page, where you can get the connection information for live [...] NHGIS Site The National Historical Geographic Information System (NHGIS) website recently is an incredibly valuable tool for historic demographics information. You just need to register. From their site: The National Historical Geographic Information System (NHGIS) provides, free of charge, aggregate census data and GIS-compatible boundary files for the United States [...] The Census Bureau (http://www.census.gov/) maintains geographic boundaries for the analysis and mapping of demographic information across the United States. Every 10 years the Census Bureau counts the population of the United States as mandated by Constitution. The Census Bureau releases the results of this county as demographic data [...] The Census Bureau (http://www.census.gov/) maintains geographic boundaries for the analysis and mapping of demographic information across the United States. Every 10 years the Census Bureau counts the population of the United States as mandated by Constitution. The Census Bureau releases the results of this county as demographic data with [...] The FCC makes a number of datasets available that cover the various communications data out there. Their primary GIS data download page is here: http://wireless.fcc.gov/geographic/index.htm?job=licensing_database_extracts To download LA County Data The LA County extract of this data is part of the Locations/Points of Interest dataset that is available for download from this site. [...] Defense Meteorological Satellite Program (DMSP), low, earth-orbiting satellites have provided the military with important environmental information. Some cool things you can find: Nighttime lights of the world – – here’s a KMZ file I downloaded: DMSP_Nighttime_Lights.kmz Visible and Infrared imagery Link to their sensors: http://www.ngdc.noaa.gov/dmsp/sensors.html The DMSP satellites “see” such environmental [...] This dataset contains watershed boundaries for watersheds covering Los Angeles County. This dataset was downloaded, extracted and prepared from the National Hydrography Dataset. The NHD is a comprehensive effort by the US Geological Survey to manage and maintain a comprehensive, high quality, nationwide dataset for GIS mapping and analysis of water features [...] This dataset contains hydologic points (gaging stations, gates, rock features, springs, water intakes, wells, waterfalls, reservoir points) in LA County. This dataset was downloaded, extracted and prepared from the National Hydrography Dataset. The NHD is a comprehensive effort by the US Geological Survey to manage and maintain a comprehensive, high quality, nationwide [...] This dataset contains lakes & reservoirs in LA County. This dataset was downloaded, extracted and prepared from the National Hydrography Dataset. The NHD is a comprehensive effort by the US Geological Survey to manage and maintain a comprehensive, high quality, nationwide dataset for GIS mapping and analysis of water features and conveyance. [...] This dataset contains rivers, streams, and water conveyance mechanisms (pipelines, aqueducts). This dataset was downloaded, extracted and prepared from the National Hydrography Dataset. The NHD is a comprehensive effort by the US Geological Survey to manage and maintain a comprehensive, high quality, nationwide dataset for GIS mapping and analysis of water features [...] The TIGER road file is a street centerline network used by the US Census Bureau to help locate and find citizens during its decennial census. Historically this file has had a number of identified issues with its geographic accuracy, but the 2010 file has been tested by LA County and found to be highly accurate [...] I downloaded and created a data layer of alternative fuel stations from NREL – I look forward to adding to our service locator and various maps. Here is a link to a download from NREL for alternative fuel stations: http://www.afdc.energy.gov/afdc/data_download/ Data links: Alternative Fuel Stations (United States) – zipped shapefile |
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