This data set provides canopy height estimates for mangrove forests at 0.6 x 0.6 m resolution in three study sites located in southeastern Mozambique, Africa: two sites on Inhaca Island and one in the Maputo Elephant Reserve, located in the southern province of Maputo for September, 2012. The estimates were derived from WorldView1 (WV-1) very high resolution (VHR) stereo images processed using the Ames Stereo Pipeline (ASP) digital surface model (DSM) tool.
The WorldView-1 image of Heard Island (23 March 2008) that was purchased by the Australian Antarctic Division (AAD) and the University of Tasmania (UTAS) in June 2008 has to be geometrically corrected to match the Quickbird and IKONOS imagery in the Australian Antarctic Data Centre (AADC) satellite image catalogue. In addition, the WorldView-1 imagery contains two separate image strips that cover the whole island. These strips were acquired at slightly different times from different angles during the satellite overpass. The discrepancy in acquisition angle has resulted in a geometric offset between the two image strips. These two image strips were orthorectified with a 10 m RADARSAT DEM (2002). The orthorectified images were then merged into a single image mosaic for the whole island.
This work was completed as part of ASAC project 2939 (ASAC_2939).
This High Mountain Asia data set contains 2 m resolution digital elevation models (DEMs), surface velocities, surface mass balance (SMB) rates, and SMB uncertainties for six debris-covered glaciers in Nepal.
SMB rate is estimated by applying a Lagrangian specification to DEMs derived from very-high-resolution optical stereo imagery acquired by Maxar Technologies satellites WorldView-1, WorldView-2, WorldView-3, and GeoEye-1.
This data set was granted permission for public release on 1 March 2024 under the National Reconnaissance Office (NRO) Electro-Optical Commercial Layer (EOCL) program.
This data set contains 8-meter Digital Elevation Model (DEM) mosaics of high mountain Asia glacier and snow regions generated from very-high-resolution (VHR) commercial satellite imagery.
This data set contains 8-meter Digital Elevation Models (DEMs) of high mountain Asia glacier and snow regions generated from very-high-resolution commercial stereoscopic satellite imagery.
This data set contains 8-meter Digital Elevation Model (DEM) mosaics of high mountain Asia glacier and snow regions generated from from very-high-resolution commercial stereo satellite imagery.
The Quickbird (2 Nov 2010) images purchased by the AAD in May 2011 were orthorectified to correct for geometric distortions caused by relief displacement. Additionally, for change detection analysis the Quickbird images were co-registered to the Quickbird (15 Mar2005) imagery of Macquarie Island (satellite imagery catalogue 457).
This data set consists of an enhanced resolution digital elevation model (DEM) for the Greenland Ice Sheet, derived from sub-meter resolution, panchromatic stereoscopic imagery collected by the GeoEye-1, WorldView-1, -2, and -3 satellites operated by Maxar Technologies.
The DEM was created from in-track image pairs (i.e., both images collected minutes apart along the same orbital pass) and cross-track images (i.e., from different orbits) within the in-track imaging geometry and maximum time separation criteria. The DEM is registered to ATLAS/ICESat-2 L3A Land Ice Height, Version 5 (ATL06, V5) data collected in the summers of 2019 and 2020.
See <a href="http://nsidc.org/data/measures/gimp">Greenland Ice Mapping Project (GrIMP)</a> for related data
The WorldView ESA archive is composed of products acquired by WorldView-1, -2, -3 and -4 satellites and requested by ESA supported projects over their areas of interest around the world
Panchromatic, 4-Bands, 8-Bands and SWIR products are part of the offer, with the resolution at Nadir depicted in the table.
Band Combination Mission GSD Resolution at Nadir GSD Resolution (20° off nadir)
Panchromatic WV-1 50 cm 55 cm
WV-2 46 cm 52 cm
WV-3 31 cm 34 cm
WV-4 31 cm 34 cm
4-Bands WV-2 1.84 m 2.4 m
WV-3 1.24 m 1.38 m
WV-4 1.24 m 1.38 m
8-Bands WV-2 1.84 m 2.4 m
WV-3 1.24 m 1.38 m
SWIR WV-3 3.70 m 4.10 m
The 4-Bands includes various options such as Multispectral (separate channel for Blue, Green, Red, NIR1), Pan-sharpened (Blue, Green, Red, NIR1), Bundle (separate bands for PAN, Blue, Green, Red, NIR1), Natural Colour (pan-sharpened Blue, Green, Red), Coloured Infrared (pan-sharpened Green, Red, NIR). The 8-Bands being an option from Multispectral (COASTAL, Blue, Green, Yellow, Red, Red EDGE, NIR1, NIR2) and Bundle (PAN, COASTAL, Blue, Green, Yellow, Red, Red EDGE, NIR1, NIR2).
The processing levels are:
Standard (2A): normalised for topographic relief
View Ready Standard: ready for orthorectification (RPB files embedded)
View Ready Stereo: collected in-track for stereo viewing and manipulation (not available for SWIR)
Map Scale (Ortho) 1:12,000 Orthorectified: additional processing unnecessary
Spatial coverage: Check the spatial coverage of the collection on a _$$map$$ https://tpm-ds.eo.esa.int/smcat/WorldView/ available on the Third Party Missions Dissemination Service.
The following table summarises the offered product types
EO-SIP Product Type Band Combination Processing Level Missions
WV6_PAN_2A Panchromatic (PAN) Standard/View Ready Standard WorldView-1 and 4
WV6_PAN_OR Panchromatic (PAN) View Ready Stereo WorldView-1 and 4
WV6_PAN_MP Panchromatic (PAN) Map Scale Ortho WorldView-1 and 4
WV1_PAN__2A Panchromatic (PAN) Standard/View Ready Standard WorldView-2 and 3
WV1_PAN__OR Panchromatic (PAN) View Ready Stereo WorldView-2 and 3
WV1_PAN__MP Panchromatic (PAN) Map Scale Ortho WorldView-2 and 3
WV1_4B__2A 4-Band (4B) Standard/View Ready Standard WorldView-2, 3 and 4
WV1_4B__OR 4-Band (4B) View Ready Stereo WorldView-2, 3 and 4
WV1_4B__MP 4-Band (4B) Map Scale Ortho WorldView-2, 3 and 4
WV1_8B_2A 8-Band (8B) Standard/View Ready Standard WorldView-2 and 3
WV1_8B_OR 8-Band (8B) View Ready Stereo WorldView-2 and 3
WV1_8B_MP 8-Band (8B) Map Scale Ortho WorldView-2 and 3
WV1_S8B__2A SWIR Standard/View Ready Standard WorldView-3
WV1_S8B__MP SWIR Map Scale Ortho WorldView-3
As per ESA policy, very high-resolution imagery of conflict areas cannot be provided.
WorldView-1 high resolution optical products are available as part of the Maxar Standard Satellite Imagery products from the QuickBird, WorldView-1/-2/-3/-4, and GeoEye-1 satellites. All details about the data provision, data access conditions and quota assignment procedure are described into the Terms of Applicability available in Resources section.
In particular, WorldView-1 offers archive and tasking panchromatic products up to 0.50 m GSD resolution.
Band Combination Data Processing Level Resolution
Panchromatic Standard(2A)/View Ready STANDARD (OR2A) 50 cm, 30 cm HD
View Ready Stereo 50 cm
Map-Ready (Ortho) 1:12.000 Orthorectified 50 cm, 30 cm HD
Native 50 cm resolution products are processed with MAXAR HD Technology to generate the 30 cm HD products: the initial special resolution (GSD) is unchanged but the HD technique increases the number of pixels and improves the visual clarity achieving aesthetically refined imagery with precise edges and well reconstructed details.
As per ESA policy, very high-resolution imagery of conflict areas cannot be provided.