Folders: ROOT > ScienceBase Catalog > LC MAP - Landscape Conservation Management and Analysis Portal > North Pacific Landscape Conservation Cooperative > NPLCC GIS Datasets > CPA Layers > Terrestrial Resources > JunkDelete > Imagery ( Show direct descendants )
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Level 1A Raw Image Data from SPOT 5 and SPOT 4 satellite. These images were used to create the orthoimages for the product GeoBase Orthoimage 2005-2010. Images of Raw Imagery GeoBase 2005-2010 product are raster digital date coming from SPOT 4 and SPOT 5 satellites that contain a panchromatic band with 10 meter pixels and four multispectral bands with 20 meter pixels. These images were used to produce the orthoimages of the GeoBase Orthoimage 2005-2010 product. These images are not georeferenced. The main objective of the project is to produce a complete set of raw images covering Canada's landmass over a five-year period, from May 2005 to October 2010. The goal is also to promote the use of geomatics and education...
Digital orthophotos combine the geometric qualities of a map with the image qualities of a photograph. The orthophotos in this series are a mosaic of digital orthophoto quarter quads (DOQs) produced through the National Digital Ortho Photo Program (NDOP). The image characteristics of the orthophotos in this series follow that of the source DOQs. The ground sample distance is 1 meter in the x direction and 1 meter in the y direction. The images are resampled to 2 meters when an order is placed. The images are rectified to the UTM Coordinate System, NAD83. The images are in JPEG format and each image covers a 7.5-minute quadrangle. The USGS DOQs are replaced by enhanced DOQs from APFO where available. The enhanced...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 1 m,
1 meter,
7.5 min,
AK,
Alaska,
NAIP horizontal accuracy specifications - From 2003 to 2004 the specifications were as follows: 1-meter Ground Sample Distance (GSD) imagery was to match within 3-meters, and 2-meter GSD to match within 20 meters of reference imagery. For 2005 the 1-meter GSD specification was changed to 5 meters matching to reference imagery. In 2006, all states used the same specifications as 2005 except for Utah, which required a match of +/- 6 meters to true ground. In 2007, all specifications were the same as 2006, except for Arizona, which used true ground specifications. In 2008 approximately half of the states acquired used true ground specifications and the other half used reference imagery. The 2008 states that used absolute...
Synthesis of known public LiDAR acquisitions in Region 1, compiled from multiple sources. May 2011. Needs updating.
The GeoBase Orthoimages 2005-2010 are Spot 4 and Spot 5 raster data and comprise five spectral bands: one panchromatic band with a pixel size of 10 m, and four multispectral bands with a pixel size of 20 m. The orthoimages are produced in accordance with the 1983 North American Reference System (NAD83SCRS) using the Universal Transverse Mercator (UTM) and Lambert Conformal Conic (LCC) projections. Each GeoBase Orthoimage 2005-2010 covers an area of approximately 3 600 km2, or 60 km x 60 km of the Earth's surface. All orthoimages are created with the most accurate control data available at the time. Various sources of planimetric data are used to rectify the images, and priority is given to the most accurate...
The orthoimage data set is a complete set of cloud-free (less than 10%) orthoimages covering the Canadian landmass and created with the most accurate control data available at the time of creation. The imagery has been corrected with either provincial and aerial triangulation data or, if not available, the most accurate NTDB data. The objective is to obtain accuracy of 30 metres or better in the South and 50 metres or better in the North for a 90% level of confidence. The accuracy is evaluated for each orthoimage data set. The control data, which has been extracted from sources as mentioned above, can consist of road intersection vector data or lake/island centroids. In some cases the intersection of the centre...
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