HR: 1340h
AN: A23A-0928    [Abstracts]
TI: The Daedalus Mission Concept for Earth-Sun System Observations from L1
AU: * Miller, C E
EM: chalres.e.miller@jpl.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AU: Hurst, K J
EM: Kenneth.J.Hurst@jpl.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AU: Murphy, N
EM: Neil.Murphy@jpl.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AU: Ruzmaiken, A
EM: Alexander.Ruzmaikin@jpl.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AU: Feynman, J
EM: Joan.Feynman@jpl.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AU: Wu, D L
EM: Dong.L.Wu@jpl.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AU: Salawitch, R J
EM: Ross.J.Salawitch@jpl.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099 United States
AU: Yung, Y L
EM: yly@gps.caltech.edu
AF: California Institute of Technology, Division of Geology and Planetary Science , Pasadena, CA 91125 United States
AB: The Daedalus Mission concept is being developed to exploit the unique vista of the Sun-Earth Lagrange point L1 for simultaneous observations of key solar emission/space weather parameters and spectrally resolved radiances over the entire illuminated Earth. The goal is to provide a direct measure of the influence of solar variability on the Earth System with high spatial resolution (5-25 km) and hemispheric spatial coverage on synoptic timescales (< 1 hour). Daedalus data will track climate change by monitoring the flow of energy through the Earth System, detailing its non-linear dynamical responses to solar forcing and how these responses propagate as manifested by spatiotemporal changes of global circulation modes (QBO, Annular Modes, ENSO, etc.), albedo, and large-scale biosphere structures. The Earth Science payload will consist of a series of spectrometers with spectral resolving powers R = λ/Δλ = 1000 at wavelengths from the ultraviolet through the far infrared (300 nm to 100 μm). The solar physics payload will be compatible with those of current and planned follow-on L1 platforms, contributing to critical space weather strategic goals. Daedalus L1 observations are envisioned as the capstone to an Earth Observing System of Systems, providing a global context to observations made over more limited spatial and/or temporal extents from low (LEO), middle (MEO) and geostationary (GEO) Earth orbits. The Daedalus mission is planned for a launch readiness date in the 2014 time frame to maximize overlap with the NPOESS platforms; its 5-year on-station lifetime will provide data over half of the solar cycle. Additionally, Daedalus spatially and spectrally resolved observations of the illuminated Earth disk will provide a rigorous test of the Terrestrial Planet Finder (TPF-I and TPF-C) retrieval algorithms and their ability to detect biosignatures in the presence of varying cloud, aerosol and landmass fractions.
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0360 Radiation: transmission and scattering
DE: 1616 Climate variability (1635, 3305, 3309, 4215, 4513)
DE: 1620 Climate dynamics (0429, 3309)
DE: 7537 Solar and stellar variability (1650)
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005