Remotely-sensed Arctic Discharge Reanalysis (RADR) from discharge observations and Landsat, 1984-2018, Circum-Arctic

Feng, Dongmei; Gleason, Colin J.; Lin, Peirong; Yang, Xiao; Pan, Ming; Ishitsuka, Yuta

Arctic rivers drain ~15% of the global land surface and significantly influence local communities and economies, freshwater and marine ecosystems, and global climate. However, trusted and public knowledge of pan-Arctic rivers is inadequate, especially for small rivers and across Eurasia, inhibiting understanding of the Arctic response to climate change. Here, we calculate daily streamflow in 486,493 pan-Arctic river reaches from 1984-2018 by assimilating 9.18 million river discharge estimates made from 155,710 satellite images into hydrologic model simulations. We reveal larger and more heterogenous total water export (3-17% greater) and water export acceleration (factor of 1.2-3.3 larger) than previously reported, with substantial differences across basins, ecoregions, stream orders, human regulation, and permafrost regimes. We also find significant changes in the spring freshet and summer stream intermittency. Ultimately, our results represent an updated, publicly available, and more accurate daily understanding of Arctic rivers uniquely enabled by recent advances in hydrologic modeling and remote sensing.


In order to use these data, you must cite this data set with the following citation:

Dongmei Feng, Colin J. Gleason, Peirong Lin, Xiao Yang, Ming Pan, & Yuta Ishitsuka. (2021). Remotely-sensed Arctic Discharge Reanalysis (RADR) (v1.0.0) [Data set]. Zenodo.


Feng, Dongmei

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Additional Info

Field Value
Identifier DOI:10.5281/zenodo.5604980
Institute Department of Civil and Environmental Engineering, University of Massachusetts, Amherst, MA, USA
Publication Date 2021-11-25
Version 1.0.0
Product Remotely-sensed Arctic Discharge Reanalysis (RADR)
Sensor Landsat, discharge observations
Variables [Units]
  1. discharge: flow rate or streamflow, the volumetric flux through rivers per unit time [m3/s]
  2. reach: section of river or stream between an upstream and downstream location
  3. time: day of measurement
Region Circum-Arctic
Spatial Reference EPSG:4326 WGS 84
Spatial Resolution
Spatial Coverage Latitude 45.53 to 83.09, Longitude -180 to 180
Temporal Coverage 1984-2018
Temporal Resolution daily
Format netCDF
Is Supplement to Feng, D., Gleason, C.J., Lin, P. et al. Recent changes to Arctic river discharge. Nat Commun 12, 6917 (2021).

Dataset extent

Map data © OpenStreetMap contributors