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PhyLM: A Mission Design Concept for an Optical/Lidar Instrument to Measure Ocean Productivity and Aerosols from SpaceThe Physiology Lidar-Multispectral Mission (PhyLM) is intended to explore the complex ecosystems of our global oceans. New "inversion" methods and improved understanding of marine optics have opened the door to quantifying a range of critical ocean properties. This new information could revolutionize our understanding of global ocean processes, such as phytoplankton growth, harmful algal blooms, carbon fluxes between major pools and the productivity equation. The new science requires new measurements not addressed by currently planned space missions. PhyLM will combine active and advanced passive remote sensing technologies to quantify standing stocks and fluxes of climate-critical components of the Ocean carbon cycle to meet these science providing multispectral bands from the far UV through the near infrared (340 - 1250 nm) at a ground resolution of 250 m. Improved detectors, filters, mirrors, digitization and focal plane design will offer an overall higher-quality data product. The unprecedented accuracy and precision of the absolute water-leaving radiances will support inversion- based quantification of an expanded set of ocean carbon cycle components. The dual- wavelength (532 & 1064 nm) Nd:Yag Lidar will enhance the accuracy and precision of the passive data by providing aerosol profiles for atmospheric correction and coincident active measurements of backscattering. The Lidar will also examine dark-side fluorescence as an additional approach to quantifying phytoplankton biomass in highly productive regions.
Document ID
20040068271
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Gervin, Janette C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Behrenfeld, Michael
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
McClain, Charles R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Spinhirne, James
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Purves, Lloyd
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Wood, H. John
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Roberto, Michael R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2004
Subject Category
Optics
Meeting Information
Meeting: IGARSS 2004: 2004 IEEE International Geoscience and Remote Sensing Symposium
Location: Anchorage, AK
Country: United States
Start Date: September 20, 2004
End Date: September 24, 2004
Sponsors: Institute of Electrical and Electronics Engineers
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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