Data Access

ForWarn data are readily accessed through the project’s Forest Change Assessment Viewer using a standard internet browser. To learn more about the functions and features of the Assessment Viewer, please read the Forest Change Assessment Viewer Users Guide

Web Map Service (WMS) Access

ForWarn II WMS (table below) is no longer being updated and has been discontinued. Reference this document (http://tiny.cc/5u5zuz) to locate and use the newer ForWarn III WMS's, see also the ForWarn III ArcGIS Online web map - https://arcg.is/0un4qn. We appreciate your patience while we plan the update of this information.

WMS allows access to the ForWarn vegetation change images using your desktop GIS or mobile mapping application software. The advantages of viewing the forest change images locally are: (1) to overlay with your GIS layers, (2) to screen-digitize disturbance extent and severity, (3) the increased use and functionality of a desktop GIS, and (4) to view the change images via mobile devices (such as using OruxMaps with Droid-based handhelds). Use the following WMS connection strings to access the ForWarn data products:

WMS Dataset	Contents	Connection URL
1-year baseline	01/08/2016 to present, 1yr change images by NDVI max	- Current image [GetCapabilities] - Image before current [GetCapabilities] - Image before previous [GetCapabilities] - Archive [GetCapabilities]
1-year ALC baseline	01/08/2016 to present, 1-year baseline ALC (adaptive-length compositing) "Early Detect" change product	- Current image [GetCapabilities] - Image before current [GetCapabilities] - Image before previous [GetCapabilities] - Archive [GetCapabilities]
3-year baseline	01/08/2016 to present, 3-year baseline	- Current image [GetCapabilities] - Image before current [GetCapabilities] - Image before previous [GetCapabilities] - Archive [GetCapabilities]
5-year baseline (90th percentile)	01/08/2016 to presnet, 90th percentile of 5-year baseline	- Current image [GetCapabilities] - Image before current [GetCapabilities] - Image before previous [GetCapabilities] - Archive [GetCapabilities]
All-Year median baseline	01/08/2016 to present, all-year median change products using median of the NDVI max	- Current image [GetCapabilities] - Image before current [GetCapabilities] - Image before previous [GetCapabilities] - Archive [GetCapabilities]
10-year baseline (90th percentile)	01/08/2016 to present, 90th percentile of 10-year baseline	- Current image [GetCapabilities] - Image before current [GetCapabilities] - Image before previous [GetCapabilities] - Archive [GetCapabilities]
Phenological progress	01/08/2016 to present, phenological progress	- Current image [GetCapabilities] - Image before current [GetCapabilities] - Image before previous [GetCapabilities] - Archive [GetCapabilities]
1-year baseline (Muted Grass/Shrub)	01/08/2016 to present, 1yr change images by NDVI max	- Current image [GetCapabilities] - Image before current [GetCapabilities] - Image before previous [GetCapabilities] - Archive [GetCapabilities]
1-year ALC baseline (Muted Grass/Shrub)	01/08/2016 to present, 1-year baseline ALC (adaptive-length compositing) "Early Detect" change product	- Current image [GetCapabilities] - Image before current [GetCapabilities] - Image before previous [GetCapabilities] - Archive [GetCapabilities]
3-year baseline (Muted Grass/Shrub)	01/08/2016 to present, 3-year baseline	- Current image [GetCapabilities] - Image before current [GetCapabilities] - Image before previous [GetCapabilities] - Current image [GetCapabilities] - Archive [GetCapabilities]
5-year baseline (90th percentile) (Muted Grass/Shrub)	01/08/2016 to presnet, 90th percentile of 5-year baseline	- Current image [GetCapabilities] - Image before current [GetCapabilities] - Image before previous [GetCapabilities] - Archive [GetCapabilities]
10-year baseline (90th percentile) (Muted Grass/Shrub)	01/08/2016 to present, 90th percentile of 10-year baseline	- Current image [GetCapabilities] - Image before current [GetCapabilities] - Image before previous [GetCapabilities] - Archive [GetCapabilities]
All-Year median baseline (Muted Grass/Shrub)	01/08/2016 to present, all-year median change products using median of the NDVI max	- Current image [GetCapabilities] - Image before current [GetCapabilities] - Image before previous [GetCapabilities] - Archive [GetCapabilities]
Boundaries	States, Counties, Federal Lands	`http://wms.forwarn.forestthreats.org/boundaries [GetCapabilities]`
Vector Layers	Interstates, Urban Density Zones	`http://wms.forwarn.forestthreats.org/vlayers [GetCapabilities]`
ADS	Insect and Disease Surveys	`http://wms.forwarn.forestthreats.org/ads [GetCapabilities]`
Treatments	USFS Fuels Treatments and Logging Activity	`http://wms.forwarn.forestthreats.org/treatments [GetCapabilities]`
Wildfire	MODIS Cumulative Fire Detections and Large Fire Incidents	`http://wms.forwarn.forestthreats.org/fire` [GetCapabilities]
NDVI	MODIS NDVI (22 images / yr, 2003-2009)	`http://wms.forwarn.forestthreats.org/modisndvi` [GetCapabilities]
Phenological Parameters*	National Phenology Dataset, 2000-2014	`http://wms.forwarn.forestthreats.org/parameters` [GetCapabilities]
Phenological Regions*	Phenological Regions 50-5000	`http://wms.forwarn.forestthreats.org/phenoregions` [GetCapabilities]
Cumulative Integrals*	National Phenology Dataset, (22) 16-day images / yr, 2003-2009), not current	`http://wms.forwarn.forestthreats.org/integrals` [GetCapabilities]
Raster Layers	Evergreen/Deciduous Thrive and Decline, GAP veg., Forest types and groups, Avg. Precip, Avg. Temp, Biomass, Landcover	`http://wms.forwarn.forestthreats.org/rlayers` [GetCapabilities]
W-Layers	TRMM, USGS WaterWatch	`http://wms.forwarn.forestthreats.org/wlayers` [GetCapabilities]
1-year baseline (legacy)	01/08/2006 to present, includes 1yr change images by NDVI max and 1yr change by 'Adaptive Length Compositing (alc)' for the "Early Detect" change product (also located here)	`- the current image (by max)` [GetCapabilities] `- the current image (by alc)` [GetCapabilities] `- 2006 to present directory` [GetCapabilities]
3-year baseline (legacy)	Begins 01/08/2006 through current for 3-year baseline only	`- the current image (by max)` [GetCapabilities] `- 2006 to present` [GetCapabilities]
5-year baseline (legacy)	Begins 01/08/2006 through current for 5-year baseline only	`- the current image (by max)` [GetCapabilities] `- 2006 to present` [GetCapabilities]
All-Year baseline (legacy)	01/08/2006 to present, All-year change products using NDVI max	`- the current image` [GetCapabilities] `- 2006 to present` [GetCapabilities]

(*) see Phenology Products Listing

Web Coverage Service (WCS) Download*

WCS allows users with desktop mapping applications the ability to download GIS-ready vegetation change image products. The benefit of downloading the change images allows one the ability to spatially analyze the vegetation change images’ raster values by themselves or with other GIS data layers. The raster values of the change images are percent NDVI departure from a respective baseline time period. Use the following WCS connection string to access the ForWarn data products:

WCS Dataset	Contents	Connection URL (ArcGIS users denote version 1.0.0)
1-year baselinechange images	01/08/2016 to present, 1yr change images by NDVI max	- Current image [WCS Connection] - Image before current [WCS Connection] - Image before previous [WCS Connection] - Archive [WCS Connection]
1-year ALC baseline change images	01/08/2016 to present, 1-year baseline ALC (adaptive-length compositing) "Early Detect" change product	- Current image [WCS Connection] - Image before current [WCS Connection] - Image before previous [WCS Connection] - Archive [WCS Connection]
3-year baseline change images	01/08/2016 to present, 3-year baseline	- Current image [WCS Connection] - Image before current [WCS Connection] - Image before previous [WCS Connection] - Archive [WCS Connection]
5-year baseline (90th percentile) change images	01/08/2016 to presnet, 90th percentile of 5-year baseline	- Current image [WCS Connection] - Image before current [WCS Connection] - Image before previous [WCS Connection] - Archive [WCS Connection]
All-Year median baseline change images	01/08/2016 to present, all-year median change products using median of the NDVI max	- Current image [WCS Connection] - Image before current [WCS Connection] - Image before previous [WCS Connection] - Archive [WCS Connection]
10-year baseline (90th percentile) change images	01/08/2016 to present, 90th percentile of 10-year baseline	- Current image [WCS Connection] - Image before current [WCS Connection] - Image before previous [WCS Connection] - Archive [WCS Connection]
Phenological progress change images	01/08/2016 to present, phenological progress	- Current image [WCS Connection] - Image before current [WCS Connection] - Image before previous [WCS Connection] - Archive [WCS Connection]
1-year baseline (Muted Grass/Shrub)change images	01/08/2016 to present, 1yr change images by NDVI max	- Current image [WCS Connection] - Image before current [WCS Connection] - Image before previous [WCS Connection] - Archive [WCS Connection]
1-year ALC baseline (Muted Grass/Shrub) change images	01/08/2016 to present, 1-year baseline ALC (adaptive-length compositing) "Early Detect" change product	- Current image [WCS Connection] - Image before current [WCS Connection] - Image before previous [WCS Connection] - Archive [WCS Connection]
3-year baseline (Muted Grass/Shrub) change images	01/08/2016 to present, 3-year baseline	- Current image [WCS Connection] - Image before current [WCS Connection] - Image before previous [WCS Connection] - Archive [WCS Connection]
5-year baseline (90th percentile) (Muted Grass/Shrub) change images	01/08/2016 to presnet, 90th percentile of 5-year baseline	- Current image [WCS Connection] - Image before current [WCS Connection] - Image before previous [WCS Connection] - Archive [WCS Connection]
10-year baseline (90th percentile) (Muted Grass/Shrub) change images	01/08/2016 to present, 90th percentile of 10-year baseline	- Current image [WCS Connection] - Image before current [WCS Connection] - Image before previous [WCS Connection] - Archive [WCS Connection]
All-Year median baseline (Muted Grass/Shrub) change images	01/08/2016 to present, all-year median change products using median of the NDVI max	- Current image [WCS Connection] - Image before current [WCS Connection] - Image before previous [WCS Connection] - Archive [WCS Connection]
1-year baseline (legacy) change images	01/08/2006 to present image	`http://wms.forwarn.forestthreats.org/ewswcs1year?` [WCS Connection]
3-year baseline (legacy) change images	01/08/2006 to present; includes RSAC FHTET imagery with “bd.tif” denoted in the filename (EFETAC does not provide support for the RSAC FHTET products)	`http://wms.forwarn.forestthreats.org/ewswcs3year?` [WCS Connection]
All-year baseline (legacy) change images	01/08/2006 to present; contains the “current”, “previous1” and “previous2” images in all three baseline periods; includes RSAC FHTET imagery with “bd.tif” denoted in the filename (EFETAC does not provide support for the RSAC FHTET products)	`http://wms.forwarn.forestthreats.org/ewswcs?` [WCS Connection]