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Highlights Archive


Earth Science Division Highlights for week ending June 13, 2007

*SGG researchers attend POLARCAT workshop.
Hanwant Singh and Phil Russell attended the Polar Study using Aircraft, Remote Sensing, Surface Measurements and Models, of Climate Chemistry, Aerosols and Transport (POLARCAT) First International Science Planning workshop held at the Université Pierre et Marie Curie/Jussieu in Paris, France, June 4-6. Both made presentations on NASA's current plans to participate in the ARCTAS mission, a component of POLARCAT. Singh's talk concerned Arctic research of the composition of the troposphere as detected through aircraft and satellites, and Russell discussed coordinating scientific services for aerosol-cloud-radiation goals. These Arctic campaigns are to be performed in the spring and summer of 2008 as part of the International Polar Year and focus on the changes in the chemical composition of the arctic atmosphere and their climatic impacts. (POC: Phil Russell, 4-5404, Philip.B.Russell@nasa.gov)

Biospheric researchers co-author paper on evaluating coffee crops .
Lee Johnson (CSUMB) and Stan Herwitz (UAV Collaborative) co-authored the paper, "Neural network algorithm for coffee ripeness evaluation using airborne images." A neural network, trained by a vegetation canopy radiative transfer model, operated on UAV-based multispectral imagery is used to evaluate crop ripeness within the world's largest drip irrigated coffee estate. Lead author was Roberto Furfaro, Assistant Research Professor, University of Arizona . The article appeared in Applied Engineering in Agriculture , volume 23, pp. 379-387. (POC: Lee Johnson, 4-3331, ljohnson@mail.arc.nasa.gov)

Jennifer Dungan attends LDCM Science Team meeting.
Jennifer Dungan (SGE) gave a brief status update and participated in discussions at the second Landsat Data Continuity Mission (LDCM) Science Team meeting that took place June 12-14 in Corvallis, Oregon. Rama Nemani (SGE), one of the 17 members of this team, and Dungan, a Co-I with Nemani, propose to research the development of biophysical products from future Landsat sensors, leveraging experience and methods from the MODIS science team. Discussion at the meeting among the approximately 40 participants included issues critical to the success of the LDCM and the effective use of archived data from Landsat sensors. Team members will serve in their advisory capacity through the development and launch of the next Landsat-type satellite and through the first year of data collection, with meetings twice a year. (POC: Jennifer Dungan, 4-3618, jdungan@arc.nasa.gov )

Argus Team participates in CLASIC.
Max Loewenstein (SGG), Jimmie Lopez and Jeff Grose (BAER Institute) are participating in The Cloud and Land Surface Interaction Campaign (CLASIC). The campaign, taking place at the Atmospheric Radiation, Measurement (ARM) Climate Research Facility (ACRF) Southern Great Plains field measurement site, June 9-29, is a research effort to advance the understanding of how land surface processes influence cumulus convection. This is a nine-aircraft campaign. The Argus team is participating on the CIRPAS Twin Otter aircraft. Argus is a two channel, cryogenically cooled, tunable diode laser instrument set up for the simultaneous, in situ measurement of CO (carbon monoxide) and CH4 (methane) in the troposphere and lower stratosphere. The Argus team hopes to help the understanding of the carbon cycle in relation to the land surface processes. CO and CH4 can also be used as tracer measurements for the dynamics of air in cumulus convection. (POC: Jimmie Lopez, 4-0650, jlopez@mail.arc.nasa.gov)


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