Show simple item record

dc.contributor.authorCrowell, Sean M. R.  Concept link
dc.contributor.authorKawa, S. Randolph  Concept link
dc.contributor.authorBrowell, Edward V.  Concept link
dc.contributor.authorHammerling, Dorit M.  Concept link
dc.contributor.authorMoore, Berrien  Concept link
dc.contributor.authorSchaefer, Kevin  Concept link
dc.contributor.authorDoney, Scott C.  Concept link
dc.date.accessioned2018-03-09T19:10:08Z
dc.date.available2018-07-29T08:49:51Z
dc.date.issued2018-01-29
dc.identifier.citationJournal of Geophysical Research: Atmospheres 123 (2018): 1460–1477en_US
dc.identifier.urihttps://hdl.handle.net/1912/9629
dc.descriptionAuthor Posting. © American Geophysical Union, 2018. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Atmospheres 123 (2018): 1460–1477, doi:10.1002/2017JD027836.en_US
dc.description.abstractSpace-borne observations of CO2 are vital to gaining understanding of the carbon cycle in regions of the world that are difficult to measure directly, such as the tropical terrestrial biosphere, the high northern and southern latitudes, and in developing nations such as China. Measurements from passive instruments such as GOSAT and OCO-2, however, are constrained by solar zenith angle limitations as well as sensitivity to the presence of clouds and aerosols. Active measurements such as those in development for the Active Sensing of CO2 Emissions over Nights, Days and Seasons (ASCENDS) mission show strong potential for making measurements in the high-latitude winter and in cloudy regions. In this work we examine the enhanced flux constraint provided by the improved coverage from an active measurement such as ASCENDS. The simulation studies presented here show that with sufficient precision, ASCENDS will detect permafrost thaw and fossil fuel emissions shifts at annual and seasonal time scales, even in the presence of transport errors, representativeness errors, and biogenic flux errors. While OCO-2 can detect some of these perturbations at the annual scale, the seasonal sampling provided by ASCENDS provides the stronger constraint.en_US
dc.description.sponsorshipNASA Grant Numbers: NNX15AJ27G, NNX15AH13Gen_US
dc.language.isoen_USen_US
dc.publisherJohn Wiley & Sonsen_US
dc.relation.urihttps://doi.org/10.1002/2017JD027836
dc.subjectASCENDSen_US
dc.subjectOCO-2en_US
dc.subjectPermafrosten_US
dc.subjectCarbon emissionsen_US
dc.subjectSatellite remote sensingen_US
dc.subjectFossil fuelen_US
dc.titleOn the ability of space-based passive and active remote sensing observations of CO2 to detect flux perturbations to the carbon cycleen_US
dc.typeArticleen_US
dc.description.embargo2018-07-29en_US
dc.identifier.doi10.1002/2017JD027836


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record