LCMAP Releases Adds Data for 2018, 2019 with Release of Collection 1.1

Release Date:

The USGS Land Change Monitoring, Assessment, and Projection (LCMAP) initiative has released the first update to its Conterminous United States (CONUS) science products, adding two years of data to a satellite-derived product suite already-unparalleled in its temporal density.

LCMAP Collection 1.1 marks the first of two planned updates for calendar year 2021. The new collection extends LCMAP’s historical record of land cover and change to 34 years, characterizing the landscapes across CONUS at 30-meter resolution from 1985-2019. A planned fall release will add data for the year 2020.

Collection 1.1 widens the broad scope of scientific and research questions that can be investigated through LCMAP. The 10-product suite can be used to capture the dynamics of wetlands in growth or decline, investigate the ephemeral impacts of hurricanes or rapidly-shifting mining operations, track the pace of coastal erosion or urban growth, to monitor recovery from mudslides and wildfires, and much more.

LCMAP products can also serve as a complement to other USGS Landsat-based mapping efforts, such as the National Land Cover Database.

The LCMAP team at EROS was able to produce the additional data less than one year after the release of Collection 1 thanks in part to algorithm modifications and efficiency improvements that resulted in a 69% reduction in processing time for 35 years of data.

Collection 1.1 data are now available through EarthExplorer. In May, the new data will be added to and available through LCMAP’s interactive web viewer, alongside downloadable CONUS mosaics for each product. The results of a validation assessment of the new LCMAP Collection are also available through ScienceBase.

To learn more about LCMAP Collection 1.1, visit the product page.

Be sure to subscribe to the LCMAP listserv to keep up with product news and updates.

2018 Camp Fire in Paradise, California Seen Through LCMAP Products

This graphic shows Landsat and Land Change Monitoring, Assessment, and Projection (LCMAP) post-fire images from Collection 1.1, with the fire boundary shown in yellow. Left: Landsat Analysis Ready Data acquired Dec 26, 2021, shown as a false color composite using short-wave infrared, near infrared, and red bands (Bands 6,5,4). The burn scar shows as a reddish brown. Middle: The Collection 1.1 LCMAP Annual Land Cover Change product shows land cover classification changes in purple. Right: The Collection 1.1 LCMAP Change Magnitude product shows the intensity of a time series model break (when spectral observations have diverged from the predicted values). Note that a spectral break that shows up in Change Magnitude does not necessarily correspond to a change in land cover. 

(Public domain.)

 

Related Content

Filter Total Items: 2

CONUS Science Products

The LCMAP project has generated an integrated suite of annual land cover and land surface change products for the Conterminous United States based on time series data from the Landsat record from 1985–2017. LCMAP Collection 1 Science Products are based on the USGS implementation of the Continuous Change Detection and Classification (CCDC) algorithm.

Collection 1.1 CONUS Science Products

The LCMAP project has generated an integrated suite of annual land cover and land surface change products for the Conterminous United States based on time series data from the Landsat record from 1985–2019. LCMAP Collection 1.1 Science Products are based on the USGS implementation of the Continuous Change Detection and Classification (CCDC) algorithm.

Filter Total Items: 3
Date published: December 17, 2020

LCMAP Collection 1 Science Products Available for Download as Conterminous U.S. Mosaics

USGS Land Change Monitoring, Assessment and Projection (LCMAP) Collection 1 Science Products are now available as CONUS mosaics.

Date published: July 15, 2020

Tracking Change Across Time and Space with LCMAP

The U.S. Geological Survey took a bold step toward documenting change across the landscape with the launch of the first Landsat satellite in 1972. Since then, the orbiters have collected nearly five decades of imagery.

Date published: April 11, 2019

LCMAP Captures ‘Stories of Change’ with New Datasets

If a new homeowner wants to know the history of their abode, there are places to turn.

County offices list ownership details and building permits, showing the dates of additions, fences and the like. If the house is old enough, local historical societies may even have archived photographs of the home’s exterior at various points in time.

Filter Total Items: 3
March 4, 2021

LCMAP - Time of Spectral Change & Spectral Change Magnitude

An overview of LCMAP Collection 1 science products: Time of Spectral Change, and Spectral Change Magnitude products.

LCMAP Collection 1 science products include ten science products offering different perspectives and ways to study land change across the country through time. While each product can be used separately, they are complimentary and inform one another.

September 15, 2020

LCMAP Collection 1 Science Products - Annual Land Cover Change

An overview of LCMAP Collection 1 Science Products: Annual Land Cover Change

LCMAP Collection 1 science products include 10 data sets offering different perspectives for the study of land change across the country, through time. While the Annual Land Cover Change product looks very similar to the Primary Land Cover product it contains additional data allowing users

July 16, 2020

LCMAP Collection 1 Science Products - Primary & Secondary Land Cover

LCMAP Collection 1 includes 10 Science Products, offering different perspectives for the study of land change across the country, through time. The primary and secondary land cover products, provide important information on the most likely land cover class for each pixel. Their associated confidence products record the level of confidence in each classification.