Short Name: VNP14IMGTDL_NRT
Product Title: VIIRS I Band 375 m Active Fire Product 1NRT (Vector data)
Links to Download Data: https://earthdata.nasa.gov/active-fire-data
Long Name: VIIRS I Band 375 m Active Fire locations NRT (Vector data) distributed by LANCE FIRMS
Near Real-Time (NRT) Suomi National Polar-orbiting Partnership Visible Infrared Imaging Radiometer Suite (SNPP/VIIRS) Active Fire detection product is based on that instrument's 375 m nominal resolution data. Compared to other coarser resolution (≥1km) satellite fire detection products, the improved 375 m data provide greater response over fires of relatively small areas, as well as improved mapping of large fire perimeters. Consequently, the data are well suited for use in support of fire management (e.g., near real-time alert systems), as well as other science applications requiring improved fire mapping fidelity. The 375 m product complements the baseline SNPP/VIIRS 750 m active fire detection and characterization data, which was originally designed to provide continuity to the existing 1 km Earth Observing System Moderate Resolution Imaging Spectroradiometer (EOS/MODIS) active fire data record. Due to frequent data saturation issues, the current 375 m fire product provides detection information only with no sub-pixel fire characterization.
VNP14IMGTDL_NRT are available in the following formats: TXT, SHP, KML, WMS. These data are also provided through the LANCE FIRMS Fire Email Alerts. Please note only the TXT and SHP files contain all the attributes.
Spatial Resolution: 375 m
- Citation Policy and Disclaimer
- User Guide - updated December 2015
- Metadata: - to be added
- For support, contact Earthdata Support
- Science Principal Investigator – Wilfrid Schroeder, University of Maryland
To be updated
This data set was provided by LANCE FIRMS operated by NASA/GSFC/ESDIS with funding provided by NASA/HQ
For Shape Files:
NASA Near Real-Time VNP14IMGTDL_NRT VIIRS 375 m Active Fire Detections (SHP format). Data set. Available on-line [https://earthdata.nasa.gov/active-fire-data]
For Text Files:
NASA Near Real-Time VNP14IMGTDL_NRT VIIRS 375 m Active Fire Detections (TXT format). Data set. Available on-line [https://earthdata.nasa.gov/active-fire-data]
For KML Files:
NASA Near Real-Time VNP14IMGTDL_NRT VIIRS 375 m Active Fire Detections (KML format). Data set. Available on-line [https://earthdata.nasa.gov/active-fire-data]
For WMS Files:
NASA Near Real-Time VNP14IMGTDL_NRT VIIRS 375 m Active Fire Detections (WMS format). Data set. Available on-line [https://earthdata.nasa.gov/active-fire-data]
Schroeder, W., Oliva, P., Giglio, L., & Csiszar, I. A. (2014). The New VIIRS 375 m active fire detection data product: algorithm description and initial assessment. Remote Sensing of Environment, 143, 85-96. doi:10.1016/j.rse.2013.12.008 PDF
Near Real-Time vs Standard Products
The VIIRS 375 m NRT products (VNP14IMGTDL_NRT) produced in near real-time by the Land, Atmosphere Near real-time Capability for EOS (LANCE) and may be subject to geo-location errors or re-processing. The NASA standard VIIRS fire products will be available in 2017.
LANCE processes data as soon as they are downlinked from satellites or transmitted from ground stations, generally within 30 minutes to two hours after satellite observation. Routines used to derive Level 2 products, such as fire, snow, and sea ice products, do not make use of ancillary data and therefore their codes are identical to the ones used in standard operations.
Generally, the difference between NRT and standard products is that the NRT data are subject to geolocation errors or reprocessing. Usually the geolocational errors are minimal (less than 100 meters), however, there are situations, particularly before and after spacecraft maneuvers and during space weather events, when the difference can increase up to several kilometers.
To be updated
Last Updated: Jan 31, 2017 at 1:12 PM EST