Datasets

USGS high resolution orthorectified images from The National Map combine the image characteristics of an aerial photograph with the geometric qualities of a map. An orthoimage is a uniform-scale image where corrections have been made for feature displacement such as building tilt and for scale variations caused by terrain relief, sensor geometry, and camera tilt. A mathematical equation based on ground control points, sensor calibration information, and a digital elevation model is applied to each pixel to rectify the image to obtain the geometric qualities of a map. A digital orthoimage may be created from several photographs mosaicked to form the final image. The source imagery may be black-and-white, natural color, color infrared, or color near infrared (4-band) with a pixel resolution of 1-meter or finer. With orthoimagery, the resolution refers to the distance on the ground represented by each pixel. There is no image overlap between adjacent files. Data received at EROS were reprojected from source projection to a standard utm projection and resolution resampled to align to the U.S. National Grid (USNG) using The National Map. The naming convention is based on the USNG, taking the coordinates of the SW corner of the orthoimage. The metadata were imported and updated for display through The National Map at http://nationalmap.gov/viewer.html Image-level metadata are provided in XML format. Data were compressed utilizing IAS software. The compression was JPEG2000 Lossy Compressed. The file format created was .jp2. http://datadiscoverystudio.org/geoportal/rest/metadata/item/ce4f402bd75e478eaa62723d101ccd61/html

description: One-meter-square (1 meter x 1 meter) benthic substrate at Rose Atoll, site 25P (14 32.297S, 168 09.327W), between 42 and 43 meters along a permanent transect.; abstract: One-meter-square (1 meter x 1 meter) benthic substrate at Rose Atoll, site 25P (14 32.297S, 168 09.327W), between 42 and 43 meters along a permanent transect. http://datadiscoverystudio.org/geoportal/rest/metadata/item/189f99955ec1448aa2949d26e816d377/html

Patterns of seasonal occurrence of Southern Resident Killer Whales (SRKW) throughout their range. Southern Resident Killer Whales are listed as a Distinct Population Segment of killer whales under the Endangered Species Act. Their distribution varies by season according to a variety of factors. Determining the patterns of SRKW occurence provides understanding of the factors that contribute to their seasonal distribution. Data taken seasonally. http://datadiscoverystudio.org/geoportal/rest/metadata/item/da3352d82ee0483ca85a560a9623f073/html

Location of an Electrical Earth Resistivity Survey Survey Name: Bane, John Survey ID: 2546 File County: McLean http://datadiscoverystudio.org/geoportal/rest/metadata/item/6a93168426954913bfce1e90457fa7b1/html

description: During late July through September 1987 and June and July 1988 the U.S. Geological Survey (USGS) conducted four cruises to cover the U.S. Exclusive Economic Zone (EEZ) region of the Aleutian Arc. As in earlier EEZ reconnaissance surveys, the USGS utilized the GLORIA (Geological LOng-Range Inclined Asdic) sidescan-sonar system to complete the geologic mapping. The collected GLORIA data were processed and digitally mosaicked to produce continuous imagery of the seafloor. A total of 31 digital mosaics of a 3 degree by 3 degree (or smaller) area with a 50-meter pixel resolution were completed for the region.; abstract: During late July through September 1987 and June and July 1988 the U.S. Geological Survey (USGS) conducted four cruises to cover the U.S. Exclusive Economic Zone (EEZ) region of the Aleutian Arc. As in earlier EEZ reconnaissance surveys, the USGS utilized the GLORIA (Geological LOng-Range Inclined Asdic) sidescan-sonar system to complete the geologic mapping. The collected GLORIA data were processed and digitally mosaicked to produce continuous imagery of the seafloor. A total of 31 digital mosaics of a 3 degree by 3 degree (or smaller) area with a 50-meter pixel resolution were completed for the region. http://datadiscoverystudio.org/geoportal/rest/metadata/item/63a2b4831c68477581b4317f18077838/html

METAR is a routine scheduled observation and is the primary observation code used in the United States to satisfy requirements for reporting surface meteorological data. METAR contains a report of wind, visibility, present weather, sky condition, temperature, dew point, and altimeter setting collectively referred to as the body of the report. In addition, information that elaborates on data in the body of the report may be appended to the METAR. This significant information can be found in the section referred to as Remarks. http://datadiscoverystudio.org/geoportal/rest/metadata/item/de35a0608b064d428d5a522cce0bd8ee/html

description: This project is a cooperative effort between the National Ocean Service, National Centers for Coastal Ocean Science, Center for Coastal Monitoring and Assessment, the University of Hawaii, and Analytical Laboratories of Hawaii, LLC. The goal of the work was to develop coral reef mapping methods and compare benthic habitat maps generated by photointerpreting georeferenced color aerial photography, hyperspectral and IKONOS satellite imagery. The enhanced spectral resolution of hyperspectral and control of bandwidths of multispectral data yield an advantage over color aerial photography particularly when coral health and time series analysis of coral reef community structure are of interest. Depending on the type of instrument, a spectral imaging system can be utilized to see multiple colors from ultraviolet through the far infrared range. The AURORA hyperspectral imaging system collected 72 ten nm bands in the visible and near infrared spectral range with a 3 meter pixel resolution. The data was processed to select band widths, which optimized feature detection in shallow and deep water. Photointerpreters can accurately and reliably delineate boundaries of features in the imagery as they appear on the computer monitor using a software interface such as the Habitat Digitizer.; abstract: This project is a cooperative effort between the National Ocean Service, National Centers for Coastal Ocean Science, Center for Coastal Monitoring and Assessment, the University of Hawaii, and Analytical Laboratories of Hawaii, LLC. The goal of the work was to develop coral reef mapping methods and compare benthic habitat maps generated by photointerpreting georeferenced color aerial photography, hyperspectral and IKONOS satellite imagery. The enhanced spectral resolution of hyperspectral and control of bandwidths of multispectral data yield an advantage over color aerial photography particularly when coral health and time series analysis of coral reef community structure are of interest. Depending on the type of instrument, a spectral imaging system can be utilized to see multiple colors from ultraviolet through the far infrared range. The AURORA hyperspectral imaging system collected 72 ten nm bands in the visible and near infrared spectral range with a 3 meter pixel resolution. The data was processed to select band widths, which optimized feature detection in shallow and deep water. Photointerpreters can accurately and reliably delineate boundaries of features in the imagery as they appear on the computer monitor using a software interface such as the Habitat Digitizer. http://datadiscoverystudio.org/geoportal/rest/metadata/item/96d9bf41bc804538b5e7b03426dd9b36/html

This series covers the whole of Australia at a scale of 1:250 000 (1cm on a map represents 2.5 km on the ground) and comprises 513 maps. This is the largest scale at which published topographic maps cover the entire continent. Each standard map covers an area of 1.5 degrees longitude by 1 degree latitude or about 150 kilometres from east to west and 110 kilometres from north to south. There are about 50 special maps in the series and these maps cover a non-standard area. Typically, where a map produced on standard sheet lines is largely ocean it is combined with its landward neighbour. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours (interval 50m), localities and some administrative boundaries. Some maps are supplemented by relief shading. The topographic map and data index shows coverage of the sheets. Product Specifications Coverage: The series covers the whole of Australia with 513 maps. Currency: Ranges from 1995 to 2009. 95% of maps have a reliability date of 1994 or later. Coordinates: Geographical and either AMG or MGA (post-1993) Datum: AGD66, GDA94, AHD. Projection: Universal Traverse Mercator (UTM) Medium: Paper, flat and folded copies. Forward Program: Selected maps under revision. http://datadiscoverystudio.org/geoportal/rest/metadata/item/0b1bc1fa96474c60a974b707fbf7a15a/html

Fire Hydrants dataset current as of 2009. hydrants. http://datadiscoverystudio.org/geoportal/rest/metadata/item/0866a21df6a44e2f8bbca619d806277f/html

TAF (terminal aerodrome forecast or terminal area forecast) is a format for reporting weather forecast information, particularly as it relates to aviation. TAFs are issued every 6 hours: 0000,0600,1200,1800 UTC, and generally apply to a 24 or 30-hour period, and an area within approximately five statute miles from the center of an airport runway complex. http://datadiscoverystudio.org/geoportal/rest/metadata/item/13eea5182c3c48d3a7585921b0753d75/html

ICOADS 2-degree Standard http://datadiscoverystudio.org/geoportal/rest/metadata/item/c14eb7c0fa0f4b64aee8f359f9cc69f9/html

The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide background data for engineers, scientific, and other commercial and industrial activities. Hydrographic survey data primarily consist of water depths, but may also include features (e.g. rocks, wrecks), navigation aids, shoreline identification, and bottom type information. NOAA is responsible for archiving and distributing the source data as described in this metadata record. http://datadiscoverystudio.org/geoportal/rest/metadata/item/1b3ca242922846899b52f2552020c18a/html