Mauritania 2
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The Mauritania 2 site is located in Mauritania, Africa and is one of the Committee on Earth Observation Satellites (CEOS) Working Group for Calibration and Validation (WGCV) Infrared and Visible Optical Sensors (IVOS) sites. This site has a slightly lower reflectance level than the high reflectance Libya 4 site. As like other desert calibration sites, the surface structure of this site can be described by the flat sands, small or long dunes, and rock fields mixed with dunes. Moreover, this site appears as very flat with a standard deviation of about 10 meters [1]. The 3 percent spatial uniformity criterion has also been fulfilled by this site when considering criteria chosen by Cosnefroy et al. (1996) [2].
Mauritania 2 is used for in-flight calibration stability monitoring of medium and low resolution optical satellite sensors such as Landsat 7 Enhanced Thematic Mapper Plus (ETM+), Terra Moderate Resolution Imaging Spectroradiometer (MODIS), Landsat 8 Operational Land Imager (OLI), and Sentinel 2A Multi Spectral Instrument (MSI) [3, 4]. This site has also been used in radiometric cross-calibration of different sensors such as EO-1 Advanced Land Imager (ALI), Landsat 7 ETM+, and Terra MODIS [1, 5].
Closest AERONET station: IER_Cinzana [ 13.28, -5.93], 895.5 km
| Location (City, State, Country): |
Mauritania, Africa
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|---|---|
| Landsat WRS - 2 Path / Row: |
201/46
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| Center Latitude (degrees): |
N 20.85
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| Center Longitude (degrees): |
W 8.78
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| Region of Interest (ROI): |
CEOS
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| ROI Minimum Latitude (LR): |
N 20.40
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| ROI Maximum Latitude (UL): |
N 21.30
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| ROI Minimum Longitude (UL): |
W 9.23
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| ROI Maximum Longitude (LR): |
W 8.33
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| CEOS Region of Interest |
N 21.3, W 9.23 Search this area in EarthExplorer (Landsat 8-9 Collection 2 Level-1) - date range, datasets, cloud cover and other criteria can be modified once initial results are returned |
| CNES Region of Interest |
N 20.95, W 8.88 Search this area in EarthExplorer (Landsat 8-9 Collection 2 Level-1) - date range, datasets, cloud cover and other criteria can be modified once initial results are returned |
| UTM Zone: |
29
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| Altitude above sea level (meters): |
384
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| Purpose: |
Radiometry
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| Status: |
Active
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- Lacherade, Sophie, Bertrand Fougnie, Patrice Henry, and Philippe Gamet. "Cross calibration over desert sites: Description, methodology, and operational implementation." IEEE Transactions on Geoscience and Remote Sensing 51, no. 3 (2013): 1098-1113.
- Cosnefroy, Helene, Marc Leroy, and Xavier Briottet. "Selection and characterization of Saharan and Arabian desert sites for the calibration of optical satellite sensors." Remote Sensing of Environment 58, no. 1 (1996): 101-114.
- Chander, Gyanesh, Xiaoxiong Jack Xiong, Taeyoung Jason Choi, and Amit Angal. "Monitoring on-orbit calibration stability of the Terra MODIS and Landsat 7 ETM+ sensors using pseudo-invariant test sites." Remote Sensing of Environment 114, no. 4 (2010): 925-939.
- Angal, Amit, Xiaoxiong Xiong, Taeyoung Choi, Gyanesh Chander, Nischal Mishra, and Dennis L. Helder. "Impact of Terra MODIS Collection 6 on long-term trending comparisons with Landsat 7 ETM+ reflective solar bands." Remote sensing letters 4, no. 9 (2013): 873-881.
- Chander, Gyanesh, Amit Angal, Taeyoung Choi, and Xiaoxiong Xiong. "Radiometric cross-calibration of EO-1 ALI with L7 ETM+ and Terra MODIS sensors using near-simultaneous desert observations." IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 6, no. 2 (2013): 386-399.
Note: This information has been compiled by the USGS ECCOE Team, using the best sources currently known. Updates will be made as more information becomes available. Please contact eccoe@usgs.gov with any updates you would like to contribute.