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SAFARI 2000 AVHRR-derived Land Surface Temperature Maps, Africa, 1995-2000

Overview

DatasetSAFARI 2000 AVHRR-derived Land Surface Temperature Maps, Africa, 1995-2000
DOIhttps://doi.org/10.3334/ORNLDAAC/826
Release date2006-01-06
ProjectSouthern African Regional Science Initiative Project (SAFARI 2000)
Time period1995-01-01 to 2000-12-31

Usage Metrics

CountEarliest DateLatest DateData Usage
Citations120062006Publications citing this dataset
Downloads3082007-12-032017-09-292112 total files downloaded

Description

Land Surface Temperature (LST) is a key indicator of land surface states, and can provide information on surface-atmosphere heat and mass fluxes, vegetation water stress, and soil moisture. A daily, day and night, LST data set for continental Africa, including Madagascar, was derived from Advanced Very High Resolution Radiometer (AVHRR) Global Area Coverage (GAC; 4 km resolution) data for the 6-year lifetime of the NOAA-14 satellite (from 1995 to 2000) using a modified version of the Global Inventory Mapping and Monitoring System (GIMMS) (Tucker et al., 1994). The data were projected into Albers Equal Area and aggregated to 8 km spatial resolution. The data were cloud-filtered with CLAVR-1 algorithm (Stowe et al., 1999). The LST values were estimated with a split-window technique (Ulivieri et al., 1994) that takes advantage of differential absorption of the thermal infrared signal in bands 4 and 5. The emissivity of the surface was generated using a land cover classification map (Hansen et al., 2000) combined with the FAO soil map of Africa (FAO-UNESCO, 1977) and additional maps of tree, herbaceous, and bare soil percent cover (DeFries et al., 2000). Collateral products include cloud mask, time-of-scan, latitude and longitude, and land/water mask files.The data are in flat binary files. Each data file contains 1152 columns and 1152 rows, in signed integer format (2 bytes), with 8 km by 8 km spatial resolution. A unique map exists for each day and each night of the 6-year NOAA-14 lifetime. The data are best used to infer broad temporal and spatial trends rather than pixel-by-pixel values.

Dataset documentation

Citation

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Crosscite Citation Formatter
Pinheiro, A.C. 2005. SAFARI 2000 AVHRR-derived Land Surface Temperature Maps, Africa, 1995-2000. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/826

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Data Files

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Data File (Granule)File SizeDates
1995_DAY_CLD.zip 60.6MB 1995-01-01 to 1995-12-31
1995_DAY_LSTIME.zip 87.7MB 1995-01-01 to 1995-12-31
1995_DAY_LST_UL.zip 506.9MB 1995-01-01 to 1995-12-31
1995_NIGHT_CLD.zip 34.8MB 1995-01-01 to 1995-12-31
1995_NIGHT_LSTIME.zip 69.2MB 1995-01-01 to 1995-12-31
1995_NIGHT_LST_UL.zip 463.0MB 1995-01-01 to 1995-12-31
1996_DAY_CLD.zip 63.2MB 1996-01-01 to 1996-12-31
1996_DAY_LSTIME.zip 90.6MB 1996-01-01 to 1996-12-31
1996_DAY_LST_UL.zip 538.6MB 1996-01-01 to 1996-12-31
1996_NIGHT_CLD.zip 36.7MB 1996-01-01 to 1996-12-31
1996_NIGHT_LSTIME.zip 69.1MB 1996-01-01 to 1996-12-31
1996_NIGHT_LST_UL.zip 494.4MB 1996-01-01 to 1996-12-31
1997_DAY_CLD.zip 62.7MB 1997-01-01 to 1997-12-31
1997_DAY_LSTIME.zip 87.8MB 1997-01-01 to 1997-12-31
1997_DAY_LST_UL.zip 536.5MB 1997-01-01 to 1997-12-31
1997_NIGHT_CLD.zip 36.7MB 1997-01-01 to 1997-12-31
1997_NIGHT_LSTIME.zip 66.4MB 1997-01-01 to 1997-12-31
1997_NIGHT_LST_UL.zip 492.4MB 1997-01-01 to 1997-12-31
africa_albers.lat 2.7MB 1995-01-01 to 2000-12-31
africa_albers_8bit.mask 1.3MB 1995-01-01 to 2000-12-31
africa_albers.lon 2.7MB 1995-01-01 to 2000-12-31
1998_DAY_CLD.zip 63.4MB 1998-01-01 to 1998-12-31
1998_DAY_LSTIME.zip 89.9MB 1998-01-01 to 1998-12-31
1998_DAY_LST_UL.zip 535.9MB 1998-01-01 to 1998-12-31
1998_NIGHT_CLD.zip 35.5MB 1998-01-01 to 1998-12-31
1998_NIGHT_LSTIME.zip 66.0MB 1998-01-01 to 1998-12-31
1998_NIGHT_LST_UL.zip 495.1MB 1998-01-01 to 1998-12-31
1999_DAY_CLD.zip 62.5MB 1999-01-01 to 1999-12-31
1999_DAY_LSTIME.zip 86.8MB 1999-01-01 to 1999-12-31
1999_DAY_LST_UL.zip 519.1MB 1999-01-01 to 1999-12-31
1999_NIGHT_CLD.zip 34.3MB 1999-01-01 to 1999-12-31
1999_NIGHT_LSTIME.zip 66.0MB 1999-01-01 to 1999-12-31
1999_NIGHT_LST_UL.zip 471.5MB 1999-01-01 to 1999-12-31
2000_DAY_CLD.zip 63.5MB 2000-01-01 to 2000-12-31
2000_DAY_LSTIME.zip 84.9MB 2000-01-01 to 2000-12-31
2000_DAY_LST_UL.zip 522.3MB 2000-01-01 to 2000-12-31
2000_NIGHT_CLD.zip 34.1MB 2000-01-01 to 2000-12-31
2000_NIGHT_LSTIME.zip 59.7MB 2000-01-01 to 2000-12-31
2000_NIGHT_LST_UL.zip 469.6MB 2000-01-01 to 2000-12-31

Companion Files

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Dataset has 1 companion files.

  • AVHRR_LST_readme.pdf