Where mangrove forests were lost worldwide (2000-2016)
What it measures. Maps showing where the world's mangrove forests were lost between 2000 and 2016, broken into three periods, along with what drove each loss - whether farming, aquaculture, settlement, erosion, or extreme weather.
How it's made. Built from Landsat satellite imagery using a vegetation-greenness signal to detect loss, then a machine-learning (Random Forest) method combined with global land-use data to identify the cause of each loss.
How & where you'd use it. Useful for understanding mangrove decline across 39 nations and the human and climate pressures behind it, supporting coastal conservation and restoration.
What's measured
Coverage & cadence
- Time span2000-01-01 → 2016-12-31
- Measured byLANDSAT-7 (ETM+) · LANDSAT-8 (OLI) · COMPUTERS (Computer) · LANDSAT-5 (TM)
- Processing levelLevel 4
- Spatial extent-94.5607, -58.4496, 164.691, 27.0432
- Formatsmultiple
- StatusCOMPLETE
What you can do with it
- Map vegetation, forests and biomass
- Monitor ecosystem productivity and carbon
- Support habitat and biodiversity studies
Official description
This dataset provides estimates of the extent of mangrove loss, land cover change, and its anthropogenic or climatic drivers in three time periods: 2000-2005, 2005-2010, and 2010-2016. Landsat-based Normalized Difference Vegetation Index (NDVI) anomalies were used to determine loss extent in each period. The drivers of mangrove loss were determined by examining land cover changes using a random forest machine learning technique that considered change from mangrove to wet soil, dry soil, and water at each loss pixel. A series of decision trees used several global-scale land-use datasets to identify the ultimate driver of the mangrove loss. Loss drivers include commodity production (agriculture, aquaculture), settlement, erosion, extreme climatic events, and non-productive conversion. Maps of loss extent per period, mangrove land cover changes, and loss drivers are provided for each of 39 mangrove holding nations.
Get the data
import earthaccess
earthaccess.login(strategy="netrc") # free Earthdata Login
results = earthaccess.search_data(
short_name="CMS_Global_Mangrove_Loss_1768",
version="1",
bounding_box=(-122.5, 37.2, -121.8, 37.9), # your area (W,S,E,N)
temporal=("2024-01-01", "2024-12-31"), # your dates
)
files = earthaccess.open(results) # stream straight from ORNL_CLOUD Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package. Official links
- Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data. GET DATA
- Collection Bundle URL GET DATA
- ORNL DAAC Data Set Documentation VIEW RELATED INFORMATION
- Global Mangrove Loss Extent, Land Cover Change, and Loss Drivers, 2000-2016: Mangrove_Loss_Driver_ErrorMatrix.pdf VIEW RELATED INFORMATION
- Global Mangrove Loss Extent, Land Cover Change, and Loss Drivers, 2000-2016: CMS_Global_Mangrove_Loss.pdf VIEW RELATED INFORMATION