These images represent fire indications composited March 6 13, 2007, an 8-day period during which the southern U.S. was subjected to numerous prescribed burns. This image is the entire tile h10v05, including most noticeably the Mississippi River, and portions of the surrounding southern States. Below is a zoomed view along the Gulf of Mexico showing proliferate fire activity throughout Mississippi, Alabama, and Florida.
Using the MOD14A2 Fire Mask a color code was applied to highlight fires in yellow, water bodies in blue, and leaving land area in black. Each yellow pixel is 1km2.
MODIS Thermal Anomalies/Fire products are primarily derived from MODIS 4- and 11-micrometer radiances. The fire detection strategy is based on absolute detection of a fire (when the fire strength is sufficient to detect), and on detection relative to its background (to account for variability of the surface temperature and reflection by sunlight). Numerous tests are employed to reject typical false alarm sources like sun glint or an unmasked coastline.
MOD14A2 data are 8-day fire-mask composites at 1-kilometer resolution provided as a gridded level-3 product in the Sinusoidal projection. Science Data Sets include the fire-mask and algorithm quality.
The Terra MODIS instrument acquires data twice daily (10:30 AM and PM), as does the Aqua MODIS (1:30 PM and AM). These four daily MODIS fire observations serve to advance global monitoring of the fire process and its effects on ecosystems, the atmosphere, and climate.
Version-5 MODIS/Terra Thermal Anomalies/Fire products are Validated Stage 1, meaning that accuracy has been estimated using a small number of independent measurements obtained from selected locations and time periods and ground-truth/field program efforts. Although there may be later improved versions, these data are ready for use in scientific publications.
Temporal Coverage | February 24, 2000 - |
Area | ~10 x 10 |
File Size | ~0.04 MB |
Projection | Sinusoidal |
Data Format | HDF-EOS |
Dimensions | 1200 x 1200 rows/columns |
Resolution | 1 kilometer |
Science Data Sets (SDS HDF Layers) | 2 |
Science Data Sets for MODIS/Terra Thermal Anomalies/Fire 8-Day L3 Global 1km SIN Grid V005 (MOD14A2):
Science Data Sets (HDF Layers) (2) |
UNITS |
BIT TYPE |
FILL |
VALID RANGE |
---|---|---|---|---|
Fire mask | Class | 8-bit unsigned integer | 0 | 0–9 |
QA | Bits | 8-bit unsigned integer |
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In the event that data distributed from the Land Processes DAAC are incorporated into your research, please supply the following acknowledgment within your published work: "These data are distributed by the Land Processes Distributed Active Archive Center (LP DAAC), located at the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center (lpdaac.usgs.gov)." If possible, please e-mail or send us reprints/citations of papers or oral presentations based on data obtained from the LP DAAC (see below for mailing address and e-mail address). This will help us to stay informed of how the data are being utilized.
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U.S. Geological Survey (USGS)
Earth Resources Observation and Science (EROS) Center
47914 252nd Street
Sioux Falls, SD 57198-0001
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U.S. Geological Survey (USGS)
Center for Earth Resources Observation and Science (EROS)
47914 252nd Street
Sioux Falls, SD 57198-0001
Phone Number: | 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 |