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Monthly Check-In

Tuesday, April 25, 2017 - 11:00am to 12:00pm


Title: The GeoCarb Mission: Constraining Carbon Emissions from Geostationary Orbit

Chris O’Dell and Andrew Schuh, Cooperative Institute for Research in the Atmosphere (CIRA), Colorado State University

Abstract: GeoCarb is a high precision greenhouse gas observing system recently selected as the second NASA Earth Ventures mission.  GeoCarb will operate in geostationary orbit over the western hemisphere, and is currently scheduled to launch in mid-2021.  It will measure column-mean concentrations of carbon dioxide, methane, and carbon monoxide in clear-sky regions over land with a spatial resolution of ~ 4km.  It will also measure solar-induced chlorophyll fluorescence (SIF), which is closely related to instantaneous photosynthesis.  It has a customizable scan strategy, but generally will map large rectangular regions that are 2800 km in the north-south direction, and hundreds to thousands of km wide in the east-west direction, enabling it to scan large sections of North and South America each day. In this presentation, we will discuss the unique abilities provided by GeoCarb to measure net fluxes of both carbon dioxide and methane with medium spatial (100s of km) and temporal (1 month) resolution and how this data can be used to make inferences about surface fluxes of these trace gases. We will also introduce and discuss the GeoCarb SIF measurements and how they can be used to assess plant health, and the advantages of SIF over traditional remotely-sensed vegetation indices such as NDVI.


Connection Information:

Tuesday, April 25, 11:00-12:00 MST

Dial in: 855-547-8255, passcode: 67416#