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Know Your Earth 3.0: SMAP
SMAP banner with Kent Kellogg

About Kent Kellogg

Kent Kellogg is the project manager for the Soil Moisture Active Passive (SMAP) mission at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif., and is responsible for all aspects of mission success.

Kellogg joined JPL in 1983 and has served in a number of engineering and management roles involving flight system engineering, space hardware development, contract management and organizational management. His previous assignments include managing JPL's communications, tracking and radar division, JPL's spacecraft telecommunications equipment section, the SeaWinds and QuikScat projects and supervising JPL's Spacecraft Antennas Group.

He received NASA's Exceptional Achievement Medal three times for his work on the NASA Scatterometer antenna subsystem in 1997, for leadership in the SeaWinds instrument development and delivery for QuikScat in 2000, and outstanding technical leadership of the SeaWinds project in 2004. His technical expertise is in flight system engineering, deep space communications and tracking, instrument system development and implementation, and antennas and electromagnetics.

Kellogg has participated in all mission phases for both Earth science and deep space missions. He has a bachelor's degree in electronic engineering from California Polytechnic State University. In his spare time, Kellogg enjoys fishing the creeks in the eastern side of the Sierra Nevada mountain range of California, ham radio, historical reading and travel.

About SMAP

Climate predictions will be improved with the use of the soil moisture data provided by SMAP.
SMAP data on the effects of soil moisture and freeze/thaw on surface fluxes, which influence weather and climate forecasts.
Credit: NASA
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The Soil Moisture Active Passive (SMAP) mission will provide global measurements of soil moisture and its freeze and thaw state. SMAP science objectives are to acquire space-based hydrosphere state measurements over a three-year period to:
  • Understand processes that link the terrestrial water, energy and carbon cycles
  • Estimate global water and energy fluxes at the land surface
  • Quantify net carbon flux in boreal landscapes
  • Enhance weather and climate forecast skill
  • Develop improved flood prediction and drought monitoring capabilities
Scheduled for launch in 2014, the accuracy, resolution, and global coverage of SMAP soil moisture and freeze/thaw measurements will be invaluable across many science and applications disciplines.

The SMAP instrument includes a radiometer and a synthetic aperture radar. The instrument is designed to make coincident measurements of surface emission and backscatter, with the ability to sense the soil conditions through moderate vegetation cover. The instrument measurements will be analyzed to yield estimates of soil moisture and freeze and thaw states. The measurement swath width is 1,000 kilometers, providing global coverage within three days at the equator and two days at boreal latitudes.

Additional Links

› Know Your Earth 3.0
› SMAP Mission
› NASA Science SMAP page
› SMAP Mission on Facebook
› SMAP Mission on Twitter