William
B.
Cook, NASA Langley Research Center, william.b.cook@nasa.gov
(Presenting)
James
H.
Crawford, NASA Langley Research Center, james.h.crawford@nasa.gov
Glenn
S.
Diskin, NASA Langley Research Center, glenn.s.diskin@nasa.gov
Larry
L.
Gordley, GATS, Inc., l.l.gordley@gats-inc.com
Thomas
Kampe, Ball Aerospace and Technology Corporation, tkampe@ball.com
Glen
W.
Sachse, National Institute of Aerospace, glen.w.sachse@nasa.com
The COCOA is a remote sensing instrument that will enable the measurement of CO from the top of the atmosphere to the Earth’s surface with very high sensitivity and at the very high spatial and temporal resolutions required by the NRC Decadal Survey mission Active Sensing of Carbon Dioxide (CO2) over Nights, Days and Seasons (ASCENDS). The instrument described here will enable the ASCENDS mission to differentiate between anthropogenic and natural sources and sinks of global carbon.
The NRC Decadal Survey places particular emphasis on retrieving CO information for the planetary boundary layer that requires measurements using near-IR (2.3 micron) wavelengths. We show here the reasons why current and contemplated measurements in the 4.7 micron CO band alone will not be sufficient to produce the required sensitivity at the lowest levels of the atmosphere.
COCOA is a gas filter correlation radiometer (GFCR), a highly successful technique used in other airborne and space-based missions for detecting trace species in the Earth’s atmosphere. Our instrument employs a new dual beam radiometer concept using a single focal plane array and combined with an etalon pre-filter. The innovative sensor design can be extended to support CO and trace gas measurements defined in other NRC Decadal Survey missions (e.g. GEO-CAPE and GACM).
NASA Carbon Cycle & Ecosystems Active Awards Represented by this Poster: