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Supporting Climate Science with Cryospheric Data from the National Snow and Ice Data Center DAAC, B. Johnson


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B. Johnson (National Snow and Ice Data Center, Boulder, CO, United States of America), S. Tanner, (National Snow and Ice Data Center, Boulder, CO, United States of America), A. Leon, (National Snow and Ice Data Center, Boulder, CO, United States of America)

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Supporting Climate Science with Cryospheric Data from the National Snow and Ice Data Center DAAC, B. Johnson

  1. 1. Supporting Climate Science with Cryospheric Data from the National Snow and Ice Data Center DAAC Steve Tanner, ICESat-2 and Operation IceBridge Data Management Our Common Future Under Climate Change July 8, 2015
  2. 2. Cooperative Institute for Research in Environmental Sciences Main sponsors: University of Colorado Boulder NSIDC affiliations and sponsorship National Science Foundation NASA National Oceanographic and Atmospheric Administration
  3. 3. The National Snow and Ice Data Center… Provides tools for data access Researches the cryosphere and data science Educates the public about the cryosphere Supports data users Manages and distributes scientific data Supports local and traditional knowledge
  4. 4. NSIDC: An overview 4 Snow Sea and lake ice Glaciers Ice sheets Frozen ground Ice cores Icebergs Avalanches Elevation Polar atmosphere Radiation Meteorology Local & Traditional Knowledge Climate indicators Climate modeling Global energy balance Water resources Sea level change Hazards Education Data… Used for… Focus on cryospheric data
  5. 5. NSIDC Distributed Active Archive Center (DAAC) Data from NASA's past and current Earth Observing System (EOS) satellites and other satellite and field measurement programs. • AMSR (ADEOS II) • AMSR-E (Aqua) • Aquarius Soil Moisture & Polar products • SMAP • SMMR (Nimbus 7) • SSM/I, SSMIS VIS/IR Moderate Resolution • MODIS (Terra/Aqua) snow and ice products • AVHRR polar data (NOAA series) Satellite & Airborne Altimetry • ICESat/GLAS altimetry and atmospheric lidar data • ICESat-2 • Operation IceBridge Passive Microwave AMSR-E 12.5 km Sea Ice Concentration MODIS Monthly Global Snow Cover IceBridge ATM Qfit Data on Landsat Image
  6. 6. NASA ESDIS New Mission List Missions Launch Date DAAC Shizuku (GCOM-W1) May 18, 2012 GHRC / NSIDC GPM Feb 27, 2014 GES DISC OCO-2 Jul 2014 GES DISC SMAP Nov 5, 2014 ASF / NSIDC SAGE-III ON ISS Dec 2014 ASDC DSCOVR Jan 2015 ASDC CYGNSS (EV-M) Oct 2016 PO.DAAC OCO-3 on ISS Dec 2016 GES DISC ICESat-2 July 2017 NSIDC GRACE FO Aug 2017 PO.DAAC
  7. 7. Missions: SMAP Mission Mission Summary • Launch November 5, 2014 • Downlink to Alaska, McMurdo, Svalbard, Wallops (backup) • 15 contacts per day; 135GB/day • 3 year mission timeline The Soil Moisture Active-Passive (SMAP) will provide global measurements of soil moisture and its freeze/thaw state. SMAP science objectives are 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
  8. 8. Missions: ICESat-2 Science Objectives: • Quantifying polar ice-sheet contributions to current and recent sea-level change and the linkages to climate conditions. • Quantifying regional signatures of ice-sheet changes to assess mechanisms driving those changes and improve predictive ice sheet models. • Estimating sea-ice thickness to examine ice/ocean/atmosphere exchanges of energy, mass and moisture. • Measuring vegetation canopy height as a basis for estimating large-scale biomass and biomass change. • Enhancing the utility of other Earth observation systems through supporting measurements. ICESat-2 is a multi-beam laser altimeter capable of measuring the surface height of snow and ice surfaces to within a few cm.
  9. 9. • An airborne mission to “Bridge” the gap between ICESat and ICESat-2 • Campaigns are flown over Greenland, Alaska, and Antarctica each year – 7+ aircraft – 19 instruments – 60+ data products – 1,365,307 kms flown thus far • The NSIDC DAAC is the OIB Archive • Users have downloaded over 150 Terabytes of OIB data Missions: Operation IceBridge Users find and select OIB data via a map-based portal showing the flight lines of each campaign • Snow Radar • Accumulation Radar • Ku-Band Altimeter • Radar Sounders • Gravimeter • Magnetometer • Digital Mapping System • KT-19 Skin Surface Temperatures
  10. 10. Top photo: © Bjørn Anders Nyomen Bottom photo: Courtesy IPYDIS 10 Principles of Data Management Preservation without access is pointless; access without preservation is impossible Keep it simple and flexible: it’s about data, not systems! Think about long-term archiving when planning for data collection Document uncertainty Involve scientists and users in data management, and data managers in science
  11. 11. Discovery & Access: NSIDC Search NSIDC: An overview11 • Provides users with information and features to make it easier to identify and differentiate data sets with the best fit for their use • Guided by usability testing • Collaboration between NASA NSIDC DAAC and NSF ACADIS •
  12. 12. Discovery & Access: Reverb Search & Order Provides multi-faceted search of NASA’s Earth Science data holdings and on-demand services for NSIDC DAAC data.
  13. 13. Discovery & Access: Direct Access Access complete mission times series through a public FTP site or receive automatic delivery with a data subscription.
  14. 14. Discovery & Access: Worldview/GIBS Provides interactive browse and download of full-resolution imagery and access to the source data.
  15. 15. Tools & Services: On-demand Services Reformatting Spatial and Parameter Subsetting Reprojection AMSR-E Soil Moisture KML in Google Earth
  16. 16. Tools & Services: Data Usage Resources HDF resources Matlab data readers Data usage “How Tos” Zoom of Annual Aquarius Soil Moisture Plot
  17. 17. Education and outreach NSIDC scientists and communications group work together to answer questions about polar change, provide information and interpretation, and develop educational tools •Educators, K-12 through college (typically email) •The interested public – Joe the Plumber (email, telephone, public talks) •Media of all types - newspapers, radio, television (typically interviews) •Climate change skeptics (email, telephone) Arctic Sea Ice News and Analysis: Greenland Ice Sheet Today: Press room: Education Center ( Information about Earth's snow and ice, from comprehensive "All About" sections to quick facts on popular snow and ice topics.
  18. 18. Informative Descriptions Map-Based Data Visualization Graphical Data Analysis Time-Series Animations Education and Outreach: Satellite Observations of Arctic Change (SOAC) Interactive Arctic Data Visualization & Analysis SOAC includes an extended analysis of climate topics Human Activities Natural Systems Changing Conditions SOAC was developed to open up NASA Earth science data to a broader range of users. The site is for decision makers, teachers, non-specialist scientists, and the motivated public. Air Temperature Vegetation (NDVI) Sea Ice Age Snow Cover Water Vapor Examples of Currently Available Data
  19. 19. User Support: Product User Guides Developed from ATBDs, product specs, etc. with guidance from the Science Team.
  20. 20. NSIDC: An overview 20 User Support: NSIDC User Services Office Highest customer service satisfaction rating in the federal government (per external NASA reviews) Expert and timely assistance in selecting and obtaining data Expertise in remote sensing, data manipulation and programming, outreach, and customer service Support for data set documentation, data specific tools, and problem solving
  21. 21. Jorum Glacier, Antarctica. Photo courtesy Ted Scambos