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Published May 14, 2021 | Version 20210425
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LDEO-HPD: Lamont-Doherty Earth Observatory Hybrid Physics Data pCO2 Product

  • 1. Lamont-Doherty Earth Observatory
  • 2. Columbia University

Description

Lamont-Doherty Earth Observatory Hybrid Physics Data (LDEO-HPD)

This collection contains the Lamont-Doherty Earth Observatory Hybrid Physics Data (LDEO-HPD) product. This product makes near-global monthly estimates of surface ocean pCO2 from January 1982 through December 2018 with a 1ºx1º spatial resolution.  LDEO-HPD uses an eXtreme Gradient Boosting (XGB) algorithm to make estimates of the misfit between observations and mode-based estimates. These spatiotemporal misfit estimates are then added back to the model-based estimate to make the final LDEO-HPD estimate. This is done for each of nine models part of the Global Carbon Budget 2020. 

Air-sea CO2 flux is calculated using a bulk parameterization, which is a function of wind speed. Three wind speed products are used to estimate flux. The average across these three estimates is taken as the best estimate. 

Datasets in this collection:

  • LDEO-HPD_error_v20210425_1x1_198201-201812.nc : contains estimates of the misfit from each model
  • LDEO-HPD_spco2_v20210425_1x1_198201-201812.nc : contains estimates of surface ocean pCO2 for each model
  • LDEO-HPD_fgco2_v20210425_1x1_198201-201812.nc : contains estimates of air-sea CO2 flux for each model and wind product

Files

Files (12.6 GB)

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md5:25361799e63c0e52fcf05f36af34aac3
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