Service Description: Tracks the frequency and distribution of fires across the region, both natural and human-caused.

Service ItemId: 94494deb662f413794f2fc58e966590c

Has Versioned Data: false

Max Record Count: 2000

Supported query Formats: JSON

Supports applyEdits with GlobalIds: False

Supports Shared Templates: True

All Layers and Tables

Layers:

• AMZ_CLIFIREFREQ (5)

Description:

Forest Fire Frequency Layer

This GIS layer consists of polygons representing different classes of forest fire frequency, based on satellite-detected heat sources and fire events.

Data Compilation and Methodology

Compiled by AmazoniaForever360+ (2023) using historical fire and heat anomaly data from NASA’s Fire Information for Resource Management System (FIRMS). The dataset covers March 2014 – March 2024 and includes detections from multiple satellite radiometers.

Processing Steps:

• Historical heat anomaly points were sampled using a 10 km analysis grid across the Amazon.
• Event centroids were generated, accumulated per grid cell, and converted into a raster image.
• The raster was reclassified to define fire frequency classes.
• Industrial and geological heat sources were filtered out.
• The final output consists of polygons representing fire-prone regions based on frequency categories.

About FIRMS & Satellite Data

NASA’s FIRMS provides near-real-time global fire data, derived from:

• MODIS (Moderate Resolution Imaging Spectroradiometer) – onboard Terra & Aqua satellites
• VIIRS (Visible Infrared Imaging Radiometer Suite) – onboard Suomi-NPP & NOAA-20 satellites

FIRMS makes active fire detection data publicly available through online portals and GIS services (WMS, WFS). The data is updated multiple times daily, supporting:

• Wildfire monitoring and habitat impact assessment
• Climate change and carbon emissions studies
• Long-term ecosystem analysis

Satellite Instruments & Fire Detection

• MODIS & VIIRS are advanced radiometers that operate across multiple spectral bands.
• They detect thermal radiation anomalies, including active fires.
• These sensors also capture reflected data from the atmosphere, vegetation, water bodies, and land surfaces, aiding in ecosystem change detection and impact evaluation.

Data Sources & Additional Information

• FIRMS Data Portal: https://firms.modaps.eosdis.nasa.gov/
• MODIS Instrument Overview: https://modis.gsfc.nasa.gov/
• VIIRS Instrument Overview: https://jointmission.gsfc.nasa.gov/viirs.html
• NASA Earthdata Access & Documentation: https://earthdata.nasa.gov/

Copyright Text: Original Compilation AmazoniaForever360+, Inter-American Development Bank, 2023-2024. Based on sources: FIRMS Data Portal: https://firms.modaps.eosdis.nasa.gov/ MODIS Instrument Overview: https://modis.gsfc.nasa.gov/

Spatial Reference: 4326 (4326)

Initial Extent:

XMin: -86.7273036967415
YMin: -17.1402497071845
XMax: -42.4073352665781
YMax: 9.44002198012622
Spatial Reference: 4326 (4326)

Full Extent:

XMin: -79.6124996996014
YMin: -20.4791665216176
XMax: -44.0000000000999
YMax: 10.0576178402912
Spatial Reference: 4326 (4326)

Units: esriDecimalDegrees

Child Resources:   Info   SharedTemplates

Supported Operations:   Query   ConvertFormat   Get Estimates