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| EDG Data Set Name | Granule Shortname |
|---|---|
| MODIS/Terra Thermal Anomalies/Fire 5-Min L2 Swath 1km | MOD14 |
| Version | Acquisition Range | Science Quality Status |
|---|---|---|
| V003 | August 29, 2002 (2002241) - October 7, 2002 (2002280) | Provisional as of Nov 1, 2000 |
| V004 | February 24, 2000 (2000055) | Validated Stage 1 as of November 1, 2000 |
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Data Set Characteristics |
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| MOD14 scene along the Sudan-Ethiopia border on Dec. 4, 2000. Fires are visible as yellow pixels in the top center of the left image, which is shown enlarged in the right image. See table for color interpretation. | |
Product Description
The MODerate-resolution Imaging Spectroradiometer (MODIS) Thermal Anomalies/Fire products detect fire locations using 4- and 11-micrometer brightness temperatures. The detection strategy is based on absolute detection, if the fire is strong enough, and on detection relative to the background to account for variability of the surface temperature and reflection by sunlight. Numerous tests are employed to reject typical false alarm sources such as sun glint and unmasked coastline. Because the Terra MODIS instrument acquires data twice daily (10:30 am and 10:30 pm), as does the Aqua MODIS (2:30 pm and 2:30 am), four daily MODIS observations area available to contribute to global fire monitoring.
The MODIS/Terra Thermal Anomalies/Fire 5-Min L2 Swath product, MOD14, is the most basic data in which active fires and other thermal anomalies, such as volcanoes, are identified. It is used to generate all of the higher-level fire products.
The MOD14 image shown has been pseudo-colored for illustrative purposes. This scene along the Sudan-Ethiopia border on December 4, 2000 depicts low- and nominal-confidence fires as yellow pixels, and high-confidence fires as red pixels. MODIS data will also be used to monitor burn scars, vegetation type and condition, smoke aerosols, water vapor and clouds for overall monitoring of the fire process and its effects on ecosystems, the atmosphere, and climate.
NOTE: These products are validated, meaning that product uncertainties are well defined over a range of representative conditions. Although there may be later improved versions, these data are ready for use in scientific publications.
| SDS | Units | Data Type | Fill Value | Valid Range | NADIR Data Resolution |
|---|---|---|---|---|---|
| Fire mask | Bit | 8-bit unsigned integer | 0 | 0 - 9 | 1km |
| Algorithm QA | Bit | 32-bit unsigned integer | na | na | 1km |
| Granule line of fire pixel | na | 16-bit signed integer | na | 0 - ~2039 | na |
| Granule sample of fire pixel | na | 16-bit signed integer | na | 0 - 1353 | na |
| Latitude of fire pixel | Degree | 32-bit floating point | na | -90.0 – 90.0 | na |
| Longitude of fire pixel | Degree | 32-bit floating point | na | -180.0 – 180.0 | na |
| Channel 2 reflectance of fire pixel | na | 32-bit floating point | -1 | 0 – 120 | na |
| Channel 21/22 brightness temperature of fire pixel | kelvins | 32-bit floating point | 0 | na | na |
| Channel 31 brightness temperature of fire pixel | kelvins | 32-bit floating point | 0 | na | na |
| Channel 21/22 brightness temperature of background | kelvins | 32-bit floating point | 0 | na | na |
| Channel 31 brightness temperature of background | kelvins | 32-bit floating point | 0 | na | na |
| Mean background brightness temperature difference | kelvins | 32-bit floating point | 0 | na | na |
| Background channel 21/22 brightness temperature mean absolute deviation | kelvins | 32-bit floating point | 0 | na | na |
| Background channel 31 brightness temperature mean absolute deviation | kelvins | 32-bit floating point | 0 | na | na |
| Background brightness temperature difference mean absolute deviation | kelvins | 32-bit floating point | 0 | na | na |
| Total radiative power | megawatts | 32-bit floating point | 0 | na | na |
| Number of adjacent cloud pixels | na | 8-bit unsigned integer | na | 0 -8 | na |
| Number of adjacent water pixels | na | 8-bit unsigned integer | na | 0 - 8 | na |
| Background window size | na | 8-bit unsigned integer | na | 0 - 21 | na |
| Number of valid background pixels | na | 16-bit signed integer | na | 0 - 438 | na |
| Detection confidence | % | 8-bit unsigned integer | na | 0 -100 | na |
| Climate Modeling Grid information | na | 16-bit unsigned integer | na | na | na |
*MODIS Thermal Anomalies/Fire QA Science Data Sets
View a Version Formatted for Printing
Retrieve the MOD14v4 MODIS product through the LP DAAC Data Pool
Via Search Tool: http://e4eil01u.ecs.nasa.gov:22000/WebAccess/drill?attrib=esdt&esdt=MOD14.4&group=MOLT
Via FTP Directory: ftp://e4ftl01u.ecs.nasa.gov/MOLT/MOD14.004/
Order These Data through the EOS Data Gateway
MODIS/TERRA THERMAL ANOMALIES/FIRE 5-MIN L2 SWATH 1KM V003
EOS Data Gateway Search Tips
| Data Center: | LPDAAC |
|---|---|
| Sensor: | MODIS |
| Dataset: | MODIS/Terra Thermal Anomalies/Fire 5-Min L2 Swath 1km |
| Geographic Extent: | Type Lat/Long Range or Draw on Map |
| Temporal Extent: | 2000-02-24 to present |
Product Information
Contact Information
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LP DAAC User Services U.S. Geological Survey (USGS) Earth Resources Observation and Science Center (EROS) 47914 252nd Street Sioux Falls, SD 57198-0001 |
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|---|---|
| Phone: | 605-594-6116 |
| Toll Free: | 866-573-3222 |
| 866-LPE-DAAC | |
| Fax: | 605-594-6963 |
| Email: | LPDAAC@eos.nasa.gov |
| Web: | http://LPDAAC.usgs.gov |
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