DAAC Home > Resources > News


Temporal Dynamics of Lake Area in the Arctic

Submitted by ORNL DAAC Staff on
Image Media
Four ABoVE study sites.
Image Media

Near-daily CubeSat imagery was collected within four large regions across the ABoVE study area. Timeseries of lake area were derived from the CubeSat imagery for more than 80,000 lakes in these regions.

Timeseries of Arctic-Boreal Lake Area Derived from CubeSat Imagery, 2017

Fluctuations in water level within Arctic-Boreal lakes reflect seasonal hydrological dynamics and may regulate freshwater methane and CO2 emissions. This NASA Arctic-Boreal Vulnerability Experiment (ABoVE) dataset provides near-daily lake area timeseries for 85,358 lakes across four study areas in Northern Canada and Alaska, USA, between May 1 and October 1, 2017. Lake area estimates were produced using digital images from newly developed Planet Labs CubeSats - small satellites with a 4-band (blue, green, red, near-infrared) camera payload. From the imagery, each lake's mean, minimum, and maximum areas and seasonal dynamism were derived. The primary data product is a lake area timeseries for all lakes with a maximum area >0.01 km2.

ABoVE is a NASA Terrestrial Ecology Program field campaign that will link field-based, process-level studies with geospatial data products derived from airborne and satellite sensors, providing a foundation for improving the analysis, and modeling capabilities needed to understand and predict ecosystem responses and societal implications. See data from ABoVE at ORNL DAAC.

Data Citation: Cooley, S.W., L.C. Smith, J.C. Ryan, L.H. Pitcher, and T.M. Pavelsky. 2019. Timeseries of Arctic-Boreal Lake Area Derived from CubeSat Imagery, 2017. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1667
Data Center: ORNL DAAC
Sponsor: EOSDIS

Four ABoVE study sites.