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Space-based lidar measurements of global ocean carbon stocks Public Deposited

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  • Global ocean phytoplankton biomass (C-phyto) and total particulate organic carbon (POC) stocks have largely been characterized from space using passive ocean color measurements. A space-based light detection and ranging (lidar) system can provide valuable complementary observations for C-phyto and POC assessments, with benefits including day-night sampling, observations through absorbing aerosols and thin cloud layers, and capabilities for vertical profiling through the water column. Here we use measurements from the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) to quantify global C-phyto and POC from retrievals of subsurface particulate backscatter coefficients (b(bp)). CALIOP b(bp) data compare favorably with airborne, ship-based, and passive ocean data and yield global average mixed-layer standing stocks of 0.44 Pg C for C-phyto and 1.9 Pg for POC. CALIOP-based C-phyto and POC data exhibit global distributions and seasonal variations consistent with ocean plankton ecology. Our findings support the use of spaceborne lidar measurements for advancing understanding of global plankton systems.
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  • Behrenfeld, M. J., Hu, Y., Hostetler, C. A., Dall'Olmo, G., Rodier, S. D., Hair, J. W., & Trepte, C. R. (2013). Space‐based lidar measurements of global ocean carbon stocks. Geophysical Research Letters, 40(16), 4355-4360. doi:10.1002/grl.50816
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  • This research was supported by funding from NASA’s Ocean Biology and Biogeochemistry Program, the Aerosols- Clouds-Ecosystems Science Working Group, and the CALIPSO mission. This study is a contribution to the international IMBER project, and ship-based measurements were in part supported by the UK Natural Environment Research Council National Capability funding to Plymouth Marine Laboratory and the National Oceanography Centre, Southampton.
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  • description.provenance : Approved for entry into archive by Deborah Campbell(deborah.campbell@oregonstate.edu) on 2013-11-13T17:28:19Z (GMT) No. of bitstreams: 1 BehrenfeldMichaelJBotanyPlantPathologySpaceBasedLidar.pdf: 1545496 bytes, checksum: f2b9ef04ce3e962c0ff369b59786b831 (MD5)
  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2013-11-13T17:26:51Z No. of bitstreams: 1 BehrenfeldMichaelJBotanyPlantPathologySpaceBasedLidar.pdf: 1545496 bytes, checksum: f2b9ef04ce3e962c0ff369b59786b831 (MD5)
  • description.provenance : Made available in DSpace on 2013-11-13T17:28:19Z (GMT). No. of bitstreams: 1 BehrenfeldMichaelJBotanyPlantPathologySpaceBasedLidar.pdf: 1545496 bytes, checksum: f2b9ef04ce3e962c0ff369b59786b831 (MD5) Previous issue date: 2013-08-23

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