Satellite'&'NASA'Data'Intro'

Transcription

1 Satellite'&'NASA'Data'Intro'

2 Research'vs.'Opera8ons' NASA':'Research'satellites' ' ' NOAA/DoD:'Opera8onal'Satellites' NOAA'Polar'Program:'NOAA>16,17,18,19,NPP' Geosta8onary:'GOES>east,'GOES>West' DMSP'series:'SSM/I,'SSMIS'

3 NOAA$Polar$Program$

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14 NASA s Earth Science Data Systems (ESDS)! NASA s Earth Science Data Systems provide end-to-end capabilities to deliver data and information products to users using an open data policy Data available to all users with no period of exclusive access Users obtain most of the data with no charge for distribution NASA waives the cost of dissemination for NASA-generated products so as not to inhibit use. NASA restricts access and/or charges distribution fees only to the extent required by the appropriate MoU for data products supplied from an international partner or other agency Distributed, heterogeneous system a virtual data system or System of Systems Architecture is discipline, measurement, and NASA research progammatically based. Science Data Systems in the Decadal Survey Era Workshop, Jun 25-26, 2009

15 Where$to$get$NASA$Data?$ h-ps://earthdata.nasa.gov/library/discipline<data<set< reference<sheets<2012$

16 NASA Earth Science Data Products: Core and Community Data System Elements Core Data Components: Earth Observing System Data and Information System (EOSDIS) CloudSat Data Processing Center Laboratory for Atmospheric and Space Physics (LASP) Solar Irradiance Data Center Precipitation Processing System (PPS) Earth Observing System (EOS) Clearinghouse (ECHO) Community Data System:

17 NASA Distributed Active Archive Centers (DAACs)

18 BRIEF OVERVIEW OF DATA CENTERS: Alaska Satellite Facility SAR Data Center (ASF SDC) Crustal Dynamics Data Information System (CDDIS) Synthetic Aperture Radar (SAR) Sea Ice Polar Processes Geophysics Space Geodesy Global Hydrology Resource Center (GHRC) Hydrologic Cycle Severe Weather Interactions Lightning Atmospheric Convection + Goddard Earth Sciences Data and Information Services Center (GES DISC) Land Processes (LP) DAAC + Global Precipitation Solar Irradiance Atmospheric Composition Atmospheric Dynamics Global Modeling Surface Reflectance Land Cover Vegetation Indices

19 Level 1 Atmosphere Archive and Distribution System (MODAPS LAADS) Radiance Atmosphere NASA Langley Research Center Atmospheric Science Data Center (LaRC ASDC) Radiation Budget Clouds Aerosols Tropospheric Chemistry + National Snow and Ice Data Center (NSIDC) DAAC Snow Ice Cryosphere Climate + Oak Ridge National Laboratory (ORNL) DAAC Biogeochemical Dynamics Ecological Data Environmental Processes + Ocean Biology Processing Group Ocean Biology Ocean Color Biogeochemistry Sea Surface Temperature Physical Oceanography (PO) DAAC Sea Surface Temperature Ocean Winds

20 + Socioeconomic Data and Applications Data Center (SEDAC) Circulation and Currents Topography and Gravity Human Interactions Land Use Environmental Sustainability Geospatial Data Multilateral Environmental Agreements

21 Data Processing Levels

22 Data Processing Levels Data Level Level 0 Description Reconstructed, unprocessed instrument and payload data at full resolution, with any and all communications artifacts (e.g., synchronization frames, communications headers, duplicate data) removed. (In most cases, the EOS Data and Operations System (EDOS) provides these data to the data centers as production data sets for processing by the Science Data Processing Segment (SDPS) or by a SIPS to produce higher-level products.) Level 1A Reconstructed, unprocessed instrument data at full resolution, time-referenced, and annotated with ancillary information, including radiometric and geometric calibration coefficients and georeferencing parameters (e.g., platform ephemeris) computed and appended but not applied to Level 0 data. Level 1B Level 1A data that have been processed to sensor units (not all instruments have Level 1B source data). Level 2 Derived geophysical variables at the same resolution and location as Level 1 source data. Level 3 Variables mapped on uniform space-time grid scales, usually with some completeness and consistency. Level 4 Model output or results from analyses of lower-level data (e.g., variables derived from multiple

23 NASA Data Format HDF (Hierarchical Data Format)

24 Introduction to Giovanni

25 Data Inputs MLS Aura OMI Aura What is Giovanni? Area Plot Time Series Model Output AIRS Aqua MODIS Aqua MODIS Terra SeaWiFS Giovanni Instances A B C TRMM HALOE UARS TOMS EP, N7 C F A E B C AMSR-E Aqua D MISR Terra F E D CloudSat CALIOP CALIPSO 13 Profile Cross-Section Correlations Column Densities

26 Giovanni capabilities Basic (one-parameter): Area plot averaged or accumulated over any data period for any rectangular area (various map projections) Time plot time series averaged over any rectangular area Hovmoller plots longitude-time or latitude-time cross sections ASCII output for all plot types (can be used with GIS apps, spreadsheets, etc.) Image animation for area plot Vertical profiles Vertical cross-sections, zonal means Beyond basics: Area plot - geographical intercomparison between two parameters Time plot - an X-Y time series plot of several parameters Scatter plot of parameters in selected area and time period Scatter plot of area averaged parameters - regional (i.e., spatially averaged) relationship between two parameters Temporal correlation map - relationship between two parameters at each grid point in the selected spatial area Temporal correlation of area averaged parameters - a single value of the correlation coefficient of a pair of selected parameters Difference plots Anomaly plots Acquiring parameter and spatial subsets in a batch mode through Giovanni

27 NASA'Graduate'Fellowships' Graduate'student'research'fellowship'(GSRP)' Requires'coordina8on'with'a'NASA'center'(usually' just'a'collaborator'on'a'project)' ~34'awards'last'year' Due'March'1,'2014' hyps://fellowships.nasaprs.com/gsrp/nav/' Earth'&'Space'Science'Fellowship'(NESSF)' Earth'science'specific' Due'Feb'1,'2014' hyp://