Version No. 01 | Last Edited: March 2019
Post Fire Vegetation Monitoring System (PFVMS)
© 2019, SIG-GIS
The Post Wildfire Vegetation Monitoring System uses Google Earth Engine to provide users with current and past vegetation cover areas burned by wildfire. The system allows users to instantly determine the cover of several vegetation types, including evergreen forests, grasslands, deciduous forests, and barren lands. The cover estimates are made at 30m resolution but can be aggregated to any area of interest, including past fire perimeters, hydrological units (HUCs), or any user-defined area. Currently, the system covers Plumas County, California and was calibrated using the Moonlight Fire, which burned in 2007. This project was funded by NASA through its the Small Business Innovation Research Program.
The Post Wildfire Recovery Monitoring System provides land managers regular systematic updates on areas that have burned by wildfire, including changes in vegetation cover, vegetation type, and a cover of bare soil, for any time period that data is available. The system integrates operational and legacy Landsat data (1984-Present) and produces land cover information at a 30-meter spatial resolution. The system provides near real-time updates with which is approximately once every 16 days.
This system is available online for no charge, providing both public and private land managers with near real-time information that may be used to better identify, plan, the budget for, and execute post-wildfire rehabilitation projects including post-wildfire harvest, reforestation, revegetation, and other erosion control activities. Users have multiple ways to easily calculate vegetation cover for their area of interest, including, a) by selecting one of the pre-loaded fire perimeters, b) selecting one of the pre-loaded hydrologic units, c) drawing a square, polygon, or rectangle within the user interface, or d) uploading any compatible shapefile (i.e. past treatments, prescribed fires, or plantations).
Click on the Button to login or signup
Click on Login to login if you have the account already.
Click on Register if you like to register and make an account
Description of the components:
Provides a brief introduction to the information system
Provides the access to Map View, Analysis, Login Page, and specific menus such as How to use, Technical Documents, Data Download, Feedback through contact us page.
Shows spatial maps/time series graphs above the base map layer
Allows the navigate through dates
Controls different data being shown in the Map View
Description of the components of Side Panel:
Land Cover Maps
The assemblage of the various bio-physical primitives produced as land cover maps
After you select/dis-select the primitive class that you want to assemble to make land cover maps, click on ‘Update Map’ to change the visualization.
Allows to visualize and download the cloud-free terrain corrected composite of the Landsat archive.
Select the season between Fall and Summer for the composite.
Number of bands to visualize
Allows to visualize the 3-band composite or single band grayscale
Depending on the number of bands to visualize, you can select the band combination to try.
For example the natural color (RGB) or the false color (NIR, Red, Green)
Google Street View
Change Base Map Layer
Toggle Area and Layer Control On/Off
Zoom In/Zoom Out
Time series. Slide through to change the year to visualize and download the data.
Draw Your Own Polygon, Circle or Rectangle or upload the local KML,
or select from the predefined area like a filter with the
The various layers displayed on the map can be controlled from the Layer
The download data provide:
Evergreen Forest - areas dominated by evergreen trees greater than 20% of total
vegetation cover. More than 75% of the tree species maintain their leaves all year.
Canopy is never without green foliage.
Shrub/Scrub - areas dominated by shrubs; less than 5 meters tall with shrub canopy
typically greater than 20% of total vegetation. This class includes true shrubs, young
trees in an early successional stage or trees stunted from environmental conditions.
Barren Land (Rock/Sand/Clay) - areas of bedrock, desert pavement, scarps, talus,
slides, volcanic material, glacial debris, sand, strip mines, gravel pits and other
accumulations of earthen material. Generally, vegetation accounts for less than 15% of the total cover.
Developed - areas of all development that are primarily impervious surfaces. Examples
include roads, single family homes, commercial areas. Generally less than 15%
Grassland/Herbaceous - areas dominated by graminoid or herbaceous vegetation,
generally greater than 80% of total vegetation. As well as areas of grasses, legumes, or
grass-legume mixtures planted for livestock grazing. Pasture vegetation accounts for
greater than 80% of total vegetation.
Open Water - areas of open water, generally with less than 25% cover of vegetation or
Deciduous Forest - areas dominated by trees generally greater than 5 meters tall, and
greater than 20% of total vegetation cover. More than 75% of the tree species shed
foliage simultaneously in response to seasonal change.
Woody Wetlands - areas where forest or shrubland vegetation accounts for greater than
20% of vegetative cover and the soil or substrate is periodically saturated with or
covered with water.
Filter Area for the statistics
Filter Area for the statistics described below
Statistics and Analysis
You can view the area occupied by different class in Acre and Hectare and the percentage occupied by that class in the area filtered above for the given year selected
The pie chart representation of the different classes by the percentage occupied by that class in the area filtered above for the given year selected
The column chart representation of the land cover for different years defined by the year as explained below in the area filtered
Click on ‘Contact Us’ to view the feedback/contact us form
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