Description
The MOD14A1 Version 6 data product was decommissioned on July 31, 2023. Users are encouraged to use the MOD14A1 Version 6.1 data product.
The Terra Moderate Resolution Imaging Spectroradiometer (MODIS) Thermal Anomalies and Fire Daily (MOD14A1) Version 6 data are generated every eight days at 1 kilometer (km) spatial resolution as a Level 3 product. MOD14A1 contains eight consecutive days of fire data conveniently packaged into a single file.
The Science Dataset (SDS) layers include the fire mask, pixel quality indicators, maximum fire radiative power (MaxFRP), and the position of the fire pixel within the scan. Each layer consists of daily per pixel information for each of the eight days of data acquisition.
Known Issues
- Known issues are described on the MODIS Land Quality Assessment website and in Section 7.2 of the User Guide which covers Pre-November 2000 Data Quality, Detection Confidence, Flagging of Static Sources, and the August 2020 MODIS Aqua Outage
Improvements/Changes from Previous Versions
- Refinements to internal cloud mask, which sometimes flags heavy smoke as clouds.
- Fix for frequent false alarms occurring in the Amazon that are caused by small (~1 km²) clearings within forests.
- Fix to correct a bug that causes incorrect assessment of cloud and water pixels adjacent to fire pixels near the scan edge.
- Detect small fires using dynamic thresholding.
- Process ocean and coastline pixels to detect fire from oil rigs.
- The Version 6 fire mask has the potential to detect fire over water pixels. Therefore, class 3 pixel values have been changed to be classified as “non-fire water pixels”.
Version Description
Product Summary
Citation
Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.
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File Naming Convention
The file name begins with the Product Short Name (MOD14A1) followed by the Julian Date of Acquisition formatted as AYYYYDDD (A2002273), the Tile Identifier which is horizontal tile and vertical tile provided as hXXvYY (h24v07), the Version of the data collection (006), the Julian Date and Time of Production designated as YYYYDDDHHMMSS (2015057061424), and the Data Format (hdf).
Documents
USER'S GUIDE
ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)
PRODUCT QUALITY ASSESSMENT
Dataset Resources
Publications Citing This Dataset
Variables
Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.
The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.
Name Sort descending | Description | Units | Data Type | Fill Value | Valid Range | Scale Factor |
---|---|---|---|---|---|---|
FireMask | Confidence of fire | Class Flag | uint8 | 0 | 0 to 9 | N/A |
MaxFRP | Maximum Fire Radiative Power | Megawatts | uint32 | 0 | 0 to 180000 | 0.1 |
QA | Pixel quality indicators | Bit Field | uint8 | N/A | N/A to 6 | N/A |
Sample | Position of fire pixel within scan | Number | uint16 | N/A | N/A to 1353 | N/A |