DOCSLIB.ORG

NASA Earth Science Data Systems Program

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
NASA Earth Science Data Systems Program NASA Earth Science Data Systems Program Martha Maiden Program Executive, Earth Science Data Systems Earth Science Subcommittee November 28, 2012 NASA’s Earth Observing System Data and Information System Manages data from several types of sources – satellite missions, aircraft investigations, PI-led dataset generation efforts Initiated in 1990 • In operation since 1994 with mature metadata for “heritage” datasets • In operation since 1997 supporting EOS instrument datasets starting with the Tropical Rainfall Measuring Mission A petabyte-scale archive of environmental data that supports global climate change research Designed to receive, process, distribute and archive several terabytes of science data per day Provides a distributed information framework supporting a broad user community Open Data Policy – Data are openly available to all and free of charge except where governed by international agreements • Consistent with Circular A-130 By having open application layers to the EOSDIS framework, we allow many other value-added services to access NASA’s vast Earth Science Collection Interoperates with data archives of other agencies and countries 2 National Aeronautics and Space Administration Earth Science Measurements MESOSPHERE Terra • 12/99 Aqua • 5/02 SORCE • 1/03 Aura • 7/04 Energy Atmospheric Surface Solar Atmospheric Albedo, Lower Surface Sounders Trace\ Aerosols, Atmospheric Imaging Budget Imaging Irradiance Gases Composition Acrimsat • 12/99 AMSR-E MODIS HIRDLS, Energy Budget Vegetation Chemistry MODIS, CERES AIRS/AMSU/ TIM, SIM, XPS TES Solar Output CERES MISR MOPITT ASTER HSB Solstice MLS, OMI ACRIM STRATOSPHERE CloudSat • 4/06 TRMM • 11/97 O3, CIO, BrO, OH, Rainfall GRACE • 3/02 Cloud Trace Gases, Aerosols CERES, TMI Jason • 12/01 Properties CALIPSO • 4/06 Ocean OSTM • 6/08 VIRS, PR, LIS Gravity Field CPR Cloud, Aerosol Ice Bridge • 10/09 Altimetry Ocean Altimetry Ice Poseidon 2/ GPS, KBR Properties CALIOP Poseidon 3/ Topography JMR/DORIS AMR/DORIS and Altimetry ATM Rain Rain Temperature Moisture TROPOSPHERE O3, Precursor Gases, Aerosols Sea Surface Ecosystem Winds Dynamics Volcanology Ocean Sea Ice Biology Evaporation Ocean Surface H2O Topography Land Biology Ocean Circulation Fire Occurrence Land Ice and Snow Cover www.nasa.gov Earth Science Measurements Applied Discipline-oriented Data Centers ASF SDC SAR Products, Sea Ice, Polar Processes, Geophysics SEDAC Human Interactions, Land Use, Environmental LP DAAC Sustainability, Surface Geospatial Data Reflectance, Land Cover, Vegetation Indices GES DISC Global Precipitation, NSIDC DAAC Solar Irradiance, Snow and Ice, Atmospheric Composition Cryosphere, and Dynamics, Climate Inter- Global Modeling actions, Sea Ice PO.DAAC Gravity, Sea Surface Temperature, Ocean Winds, Topography, CDDIS OBPG Space Geodesy, Ocean Biology, Circulation & Currents Solid Earth Sea Surface Temperature LaRC ASDC MODAPS/ Radiation Budget, LAADS Clouds, Aerosols, MODIS Level-1 GHRC DAAC Tropospheric and Atmosphere Hydrologic Cycle, Chemistry Data Products Severe Weather Inter- actions, Lightning, Atmospheric Convection ORNL DAAC Biogeochemical Dynamics, Ecological Data, Environmental Processes ECHO Architecture ECHO is NASA’s middleware layer between Earth science data and users via a service-oriented architecture. Designed to improve the discovery and access of NASA data. Developed as a part of NASA’s core data systems but fully adaptable to the needs/requirem ents of science communities. Acts as an order broker between end users and EOSDIS Data Centers who provide metadata for their data holdings and other Earth science-related data holdings. User-defined specialized “clients” can be easily developed to give science data users of their community access to data and services using ECHO’s open APIs. 6 EOSDIS Key Metrics Preliminary EOSDIS FY2012 Metrics Unique Data Products 6,986 ESDIS Project Supports Distinct Users of EOSDIS Data and Services 1.49 M Science Data Centers 12 System Web Site Visits of 1 Minute or more 1.97 M Elements SIPS 14 Average Daily Archive Growth 5.3 TB/day Interface Control 22 Total Archive Volume 6.4 PB Interfaces Documents End User Distribution Products 635 M US 10 Partnerships End User Average Daily Distribution Volume 14.8 TB/day International 6 Millions Science Data 10 700 Processing 650 Archiving and 37 600 EOSDIS Products Delivered (Millions) Missions Distribution 550 ~635,000,000 products in 2012 Instruments 500 >120X increase over 2000 Supported 87 450 400 350 300 250 More information: 200 EOSDIS: http://earthdata.nasa.gov 150 100 50 0 FY00 FY01 FY02 FY03 FY04 FY05 FY06 FY07 FY08 FY09 FY10 FY11 FY12 to date Sep 7 Evolution of EOSDIS Elements and Continuous Evolution EOSDIS underwent a concerted process for “Evolution” in the 2005-2008 timeframe. •Led by EOSDIS Project Manager Esfandiari, OES Program Executive Martha Maiden •Recommendations by External Advisory Panel, led by Moshe Pniel •Effort under Terms of Reference signed by Ghassem Asrar, with Implementation Plan concurred by Mary Cleave Resultant system reduced costs 30%, Information Technology currency, closer to science needs, with capability to continuously evolve. Continuous evolution investments about 10% of Multi-Mission Ops budget, and include system and data product/quality investments. ESS reviewed the EOSDIS System at their January 2008 meeting, reserving one hour on the agenda. ESS letter February 6, 2008 was complimentary (from NASA website). • “We were impressed by the success and clear sense of direction of that program.” • “We are a long way from the EOSDIS problems of less than a decade ago!” 8 2015 Vision Goals Addressed Vision Tenet Vision 2015 Goals NASA will ensure safe stewardship of the data through its lifetime. Archive Management . The EOS archive holdings are regularly peer reviewed for scientific merit. Multiple data and metadata streams can be seamlessly combined. EOS Data . Research and value added communities use EOS data interoperably with other Interoperability relevant data and systems. Processing and data are mobile. Data access latency is no longer an impediment. Physical location of data storage is transparent. Future Data Access Finding data is based on common search engines. and Processing Services invoked by machine-machine interfaces. Custom processing provides only the data needed, the way needed. Open interfaces and best practice standard protocols universally employed. Mechanisms to collect and preserve the pedigree of derived data products are readily Data Pedigree available. Data systems evolve into components that allow a fine-grained control over cost Cost Control drivers. User Community Expert knowledge is readily accessible to enable researchers to understand and use the data. Support Community feedback directly to those responsible for a given system element. Access to all EOS data through services at least as rich as any contemporary science IT Currency information system. Feb 3, 2005 EEE 2015 Vision Goals Addressed Vision Tenet Vision 2015 Goals NASA will ensure safe stewardship of the data through its lifetime. Archive Management +. The EOS archive holdings are regularly peer reviewed for scientific merit. Multiple data and metadata streams can be seamlessly combined. EOS Data . Research and value added communities use EOS data interoperably with other Interoperability relevant data and systems. +. Processing and data are mobile. Data access latency is no longer an impediment. Physical location of data storage is transparent. Future Data Access Finding data is based on common search engines. and Processing Services invoked by machine-machine interfaces. Custom processing provides only the data needed, the way needed. Open interfaces and best practice standard protocols universally employed. +. Mechanisms to collect and preserve the pedigree of derived data products are readily Data Pedigree available. Data systems evolve into components that allow a fine-grained control over cost Cost Control drivers. User Community Expert knowledge is readily accessible to enable researchers to understand and use the data. Support Community feedback directly to those responsible for a given system element. Access to all EOS data through services at least as rich as any contemporary science IT Currency information system. EEE As of 2012 + In Progress .
Load more

Recommended publications
  • Earth Observing System Data and Information System (EOSDIS)
    Importance and Incorporation of User Feedback in Data Stewardship Hampapuram Ramapriyan1,2 and Jeanne Behnke1 1Goddard Space Flight Center, 2Science Systems and Applications, Inc. Presented at SciDataCon 2018, Gaborone, Botswana, Nov. 5-8, 2018 1 Introduction Data stewardship - A long-term responsibility Long-lived systems must evolve On-Going user feedback is critical for understanding needs and evolving as needs change We illustrate this through NASA’s Earth Observing System Data and Information System (EOSDIS) 2 NASA’s Earth Observing System Data and Information System (EOSDIS) • Managed by NASA’s Earth Science Data and Information System (ESDIS) Project • Implements NASA’s free and open data policy in effect since early 1990s • Provides end-to-end capabilities for managing NASA’s Earth science data. Science Operations Science data processing Data management Interoperable distributed data archives On-line data access services Earth science discipline-oriented user services 3 Missions, Datasets and Disciplines Started in the 1990s, EOSDIS today archives and distributes over 11,000 data types • Atmosphere » Winds & Precipitation » Aerosols & Clouds » Temperature & Humidity » Solar radiation • Ocean » Surface temperature » Surface wind fields & Heat flux » Surface topography • Land • Human Dimensions » Ocean color » Cover & Usage » Population & Land Use • Cryosphere » Soil Moisture » Human & Environmental » Sea/Land Ice & Snow » Topography & elevation Health Cover » Temperature Distributed Active Archive Centers (DAACs) Alaska Satellite
    [Show full text]
  • Storms Are Thunderstorms That Produce Tornadoes, Large Hail Or Are Accompanied by High Winds
    From February 17 to 19, a severe storm blasted the Lebanese coast with 100- kilometer (60-mile) winds and dropped as much as 2 meters (7 feet) of snow on parts of the country, news sources said. Temperatures dropped to near freezing along the coast, while snowplows struggled to clear the main roadway between Beirut and Damascus. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this natural-color image on February 20, 2012. Snow covers much of Lebanon, and extends across the border with Syria. Another expanse of snow occurs just north of the Syria-Jordan border. Snow in Lebanon is not uncommon, and the country is home to ski resorts. Still, this fierce storm may have been part of a larger pattern of cold weather in Europe and North Africa. References The Daily Star. (2012, February 18). Lebanon hit by extreme weather conditions. Accessed February 21, 2012. Naharnet. (2012, February 19). Storm subsides after coating Lebanon in snow. Accessed February 21, 2012. NASA image courtesy LANCE/EOSDIS MODIS Rapid Response Team at NASA GSFC. Caption by Michon Scott. Instrument: Terra - MODIS Flooding is the most common of all natural hazards. Each year, more deaths are caused by flooding than any other thunderstorm related hazard. We think this is because people tend to underestimate the force and power of water. Six inches of fast-moving water can knock you off your feet. Water 24 inches deep can carry away most automobiles. Nearly half of all flash flood deaths occur in automobiles as they are swept downstream.
    [Show full text]
  • EOSDIS Space Administration
    National Aeronautics and EOSDIS Space Administration FALL 2019 Earth Science Data and Information System (ESDIS) Project A PUBLICATIONUpdate OF THE EARTH OBSERVING SYSTEM DATA AND INFORMATION SYSTEM (EOSDIS), CODE 423 TOP STORIES IN THIS ISSUE: TOP STORIES LANCE Top 10 at 10 LANCE Top 10 at 10 ...................................1 NASA’s Land, Atmosphere Near Real-time Capability for EOS, NASA Earth Observing Data and Tools Aid better known as LANCE, is 10 years old. Here’s a look at 10 LANCE International Education ...............................4 milestones over the past decade. Now Available in NASA Worldview: Earth ince 2009, the Land, Atmosphere Near real- Every 10 Minutes .......................................5 Stime Capability for NASA’s Earth Observing System (EOS), or LANCE, has been providing DATA USER PROFILES ....................8 data and data products generally within three Dr. Philip Thompson hours of a satellite observation. The products, Dr. Kristy Tiampo services, and data distribution strategies Dr. Monica Pape developed by the LANCE team have helped transform not only how Earth observing data ANNOUNCEMENTS .........................9 are used, but also the worldwide accessibility of these data. As LANCE enters its New Global Sea Level Change Animation at NASA’s PO.DAAC… ...................................9 second decade, it’s worth looking back at some LANCE milestones. While this list is not meant to be all-inclusive, it provides an overview of how this major New Version of the ASTER GDEM .......................................... initiative evolved to provide data from instruments aboard Earth observing 10 satellites rapidly, accurately, and consistently. New PO.DAAC Saildrone Data Animation ...10 1. Development of the NRTPE and Rapid Response, the precursors WEBINARS ........................................11 to LANCE DATA RECIPES The evolution of what would become known as LANCE began in 2001 with AND TUTORIALS .............................12 the development of the NASA/NOAA/Department of Defense Near Real- Time Processing Effort (NRTPE).
    [Show full text]
  • Introduction to NASA Satellite Data Products
    Introduction to NASA data products UARS Nimbus-7 SORCE TRMM Earth Probe Aura NASA Earth-Observing Satellites Aqua CloudSAT CALIPSO SeaWIFS Terra 1 http://eospso.gsfc.nasa.gov/ NASA Earth Science Data Products: http://nasascience.nasa.gov/earth-science/earth-science-data/ Core and Community Data System Elements Core Data Components: • Earth Observing System Data and Information System (EOSDIS) http://earthdata.nasa.gov/ • CloudSat Data Processing Center http://www.cloudsat.cira.colostate.edu/ • Laboratory for Atmospheric and Space Physics (LASP) Solar Irradiance Data Center http://lasp.colorado.edu/lisird/ • Precipitation Processing System (PPS) http://pps.gsfc.nasa.gov/tsdis/tsdis.html • Earth Observing System (EOS) Clearinghouse (ECHO) Community Data System: http://earthdata.nasa.gov/our-community/community-data-system-programs Earth Observing System Data and Information System (EOSDIS) http://earthdata.nasa.gov/ NASA's Earth Observing System (EOS) comprises a series of satellites, a science component and a data system which is called The Earth Observing System Data and Information System (EOSDIS). EOSDIS distributes thousands of Earth system science data products and associated services for interdisciplinary studies. Almost all data in EOSDIS are held on-line and accessed via ftp. Data Tool/Service/Center Description Global Change Master Directory (GCMD) The directory level dataset catalog. Inventory level cross-Data Center dataset and REVERB service search & access client. EOSDIS Data Centers The data centers have individual online systems (called DAACs – Distributed Active Archive Centers) that allow them to provide unique services for http://earthdata.nasa.gov/about-eosdis/system-description/eosdis- data-centers users of a particular type of data. EOSDIS search, visualization and analysis tool EOSDIS Data Service Directory directory.
    [Show full text]
  • NASA's Earth Observing Data and Information System (EOSDIS)
    NASA’s Earth Observing Data and Information System (EOSDIS) J. Behnke NASA GSFC Library of Congress Designing Storage Architectures Meeting September 9, 2019 Earth Observing System Data and Information System (EOSDIS) EOSDIS Users Research distribute Applications data subset Education downlink Public archive capture process and clean Funded and Managed by the ESDIS Project at NASA GSFC 2 A Growing Archive and Growing Number of Users Millions 1,700 1,600 1,500 1,400 1,300 1,200 1,100 1,000 900 800 Our Archive today 700 32 PB 600 500 400 300 200 100 0 FY00 FY01 FY02 FY03 FY04 FY05 FY06 FY07 FY08 FY09 FY10 FY11 FY12 FY13 FY14 FY15 FY16 FY17 FY18 FY19 Product distribution 147.6 M distributed in Jul 2019 Prediction: 2 Billion products distributed this fiscal year In FY2022, predict that the archive will grow by 48PB that year alone Our Archive growth Not the first time we have confronted this opportunity 3 EOSDIS Storage Architecture Evolution by Decade 1990 2000 2010 2020 Near-line Storage devices used Reaching Peak Complexity Hierarchical Storage 14 StorageTek silos at 4 DAACs All online storage Migrated data on disk farms to Management 45,580 tapes (3580 format) Duplication of data across disk commercial cloud data lakes StorageTek silos (Digital Linear Begin Reducing dependency on farms Use of RAID throughout Migrate to/from vendors as Tapes) Near-line storage - removing necessary to improve efficiency Metrum RSS-600 (VHS) Storagetek and performance 3480 18 track tape drives Copy to additional vendors as 9 track tape drives Robust backup
    [Show full text]
  • Manuscript and Figures with Contributions from All Co-Authors
    Separating emission and meteorological contribution to long-term PM2.5 trends over East China during 2000–2018 Qingyang Xiao1,#, Yixuan Zheng2,#, Guannan Geng1,3, Cuihong Chen4,5, Xiaomeng Huang4, Huizheng Che6, Xiaoye Zhang6, Kebin He1,3, Qiang Zhang4 5 1State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China 2Atmospheric Environment Institute, Chinese Academy of Environmental Planning, Beijing 100012, China 3State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing 100084, China 4Ministry of Education Key Laboratory for Earth System Modelling, Department of Earth System Science, Tsinghua 10 University, Beijing 100084, China 5Satellite Environment Center, Ministry of Ecology and Environment of the People’s Republic of China, Beijing 100094, China 6State Key Laboratory of Severe Weather & Key Laboratory of Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081, China 15 #These authors contributed equally to this work. Correspondence to: Guannan Geng ([email protected]) Abstract. The contribution of meteorology and emissions to long-term PM2.5 trends is critical for air quality management but has not yet been fully analyzed. Here, we used a combination of machine learning model, statistical model and chemical transport model to quantify the meteorological impacts on PM2.5 pollution during 2000–2018. Specifically, we first developed 20 a two-stage machine learning PM2.5 prediction model with a synthetic minority oversampling technique to improve the satellite-based PM2.5 estimates over highly polluted days, thus allowing us to better characterize the meteorological effects on haze events. Then we used two methods, a generalized additive model (GAM) driven by the satellite-based full-coverage daily PM2.5 retrievals as well as the Weather Research and Forecasting/Community Multiscale Air Quality (WRF/CMAQ) modelling system, to examine the meteorological contribution to PM2.5.
    [Show full text]
  • Earth Observing System Data and Information System (EOSDIS)
    Role and Evolution of NASA's Earth Science Data Systems IEEE EDS/CAS Chapter – H. K. Ramapriyan Camarillo, CA Science Systems and Applications, Inc./ August 19,2015 NASA GSFC ESDIS Project [email protected] 1 Acknowledgement This presentation is the result of my long association with the NASA Earth Science Data and Information System Project It has evolved over the years with inputs from several members of the Project and has been used in various forms in many presentations My present work with the ESDIS Project is supported under contract number NNG15HQ01C with NASA Goddard Space Flight Center 2 Topics NASA’s Earth Science Data Systems • Core and Community Capabilities Earth Observing System Data and Information System (EOSDIS) • Scope and Context • System of systems Recent Developments EOSDIS Evolution - Community inputs IEEE GRSS Earth Science Informatics Technical Committee and EOSDIS Conclusion 3 NASA’s Earth Science Data Systems “Advance understanding of Earth and develop technologies to improve the quality of life on our home planet.” -- 2014 NASA Strategic Plan NASA’s Earth Science Data Systems directly support this strategic goal by providing end- to-end capabilities to deliver data and information products to users NASA’s Earth Science Data and Information Policy promotes usage of data by the community • No period of exclusive access - Data are available after initial checkout • Data available at no cost to all users on a non-discriminatory basis except where agreed upon with international partners 4 Core and Community
    [Show full text]
  • Assessment of the Usefulness and Availability of Nasa's Earth And
    ASSESSMENT OF THE USEFULNESS AND AVAILABILITY OF NASA’S EARTH AND SPACE SCIENCE MISSION DATA SPACE STUDIES BOARD BOARD ON EARTH SCIENCES AND RESOURCES NATIONAL RESEARCH COUNCIL Other Reports of the Space Studies Board Toward New Partnerships: Government, the Private Sector, and Earth Science Research (2002) The Quarantine and Certification of Martian Samples (2001) U.S. Astronomy and Astrophysics: Managing an Integrated Program (2001) Readiness Issues Related to Research in the Biological and Physical Sciences on the International Space Station (2001) “The Next Generation Space Telescope” (2001) Assessment of Mars Science and Mission Priorities (2001) The Mission of Microgravity and Physical Sciences Research at NASA (2001) Transforming Remote Sensing Data into Information and Applications (2001) Signs of Life: A Report Based on the April 2000 Workshop on Life Detection Techniques (2001) Assessment of Mission Size Trade-offs for Earth and Space Science Missions (2000) “Assessment of NASA’s Office of Space Science Strategic Plan 2000” (2000) “Assessment of Scientific Aspects of the Triana Mission” (2000) “Continuing Assessment of Technology Development in NASA’s Office of Space Science” (2000) Ensuring the Climate Record from the NPP and NPOESS Meteorological Satellites (2000) Future Biotechnology Research on the International Space Station (2000) Issues in the Integration of Research and Operational Satellites for Climate Research: I. Science and Design (2000) Microgravity Research in Support of Technologies for the Human Exploration
    [Show full text]
  • NASA Earth Observing System Data and Information System (EOSDIS) a U.S. Network of Data Centers Serving Earth Science Data
    NASA Earth Observing System Data and Information System (EOSDIS) A U.S. Network of Data Centers Serving Earth Science Data – A Network Member of ICSU/WDS Jeanne Behnke1 and H. K. “Rama” Ramapriyan1,2 1 NASA Goddard Space Flight Center, 2 Science Systems and Applications, Inc. Mission of EOSDIS Organization Process, archive, and distribute Earth science satellite, suborbital , field campaign and other data NASA Headquarters Implement NASA’s free and open data and information policy Ensure access to data to enable the study of Earth from space Discipline-oriented Data Centers to advance Earth system science to meet the challenges of Earth Science Division ASF DAAC SAR Products, WDS - Regular Member climate and environmental change. Sea Ice, at NASA HQ Polar Processes, Promote interdisciplinary use of EOSDIS, including data Geophysics WDS Membership in process SEDAC Human Interactions, Land Use, products, data services, and data handling tools by a broad Environmental LP DAAC Sustainability, Earth Science Data and Geospatial Data Surface range of existing and potential user communities Reflectance, Land Cover, Information System Vegetation Indices GES DISC Global Precipitation, NSIDC DAAC Solar Irradiance, Project* at NASA Goddard Snow and Ice, Atmospheric Composition Cryosphere, and Dynamics, Climate Inter- Global Modeling actions, Sea Ice EOSDIS Distributed Active Archive Centers (DAACs) are Space Flight Center PO.DAAC Gravity, Sea Surface Temperature, Ocean Winds, Topography, CDDIS OBPG Circulation & Currents Space Geodesy, Ocean
    [Show full text]
  • NASA FY12 Budget Estimates for Science, Earth Science Theme
    Mission Directorate: Science Theme: Earth Science Theme Overview NASA's Earth Science Theme advances knowledge of the integrated Earth system, the global atmosphere, oceans (including sea ice), land surfaces, ecosystems, and interactions between all elements, including the impacts of humans. Sustained, simultaneous observations of many quantities are needed to unravel the complexity of the global Earth system. Maintaining balance continues to be a hallmark of NASA's Earth Science Theme: Flight Programs develop satellite missions and provide observations; Research redeems the investment in flight by analyses to increase scientific understanding and identify the foci for future missions; Technology develops new measurement approaches; and Applied Sciences provides direct societal benefit by advancing the use of Earth science measurements and scientific understanding to undergird environmental policy decisions. The President's Budget advances key elements of the program established in NASA's 2010 Climate Initiative. The budget enables launch of the first two Tier 1 decadal survey missions, Soil Moisture Active-Passive (SMAP) and Ice, Cloud, and Land Elevation Satellite (ICESat)-2, by CY 2016 and expands the Venture-class competitive program with annual solicitations for facility-class instruments and alternating biannual solicitations for small missions and airborne investigations. The budget supports continued development of options for the decadal survey's Tier-1 Deformation, Ecosystem Structure, and Dynamics of Ice (DESDynI) Radar satellite. Two climate-focused Tier-2 decadal survey missions--Surface Water and Ocean Topography (SWOT) for insight into the movement and distribution of fresh surface water, and Active Sensing of Carbon dioxide Emissions over Nights, Days and Seasons (ASCENDS) for atmospheric column carbon dioxide (CO2) abundance--have been initiated for launch in 2019-2020.
    [Show full text]
  • Taming Big Data Variety in the Earth Observing System Data and Information System
    > REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) < 1 Taming Big Data Variety in the Earth Observing System Data and Information System Christopher Lynnes, Member, IEEE, and Jeff Walter Exploration Agency (JAXA). Fig. 1 shows a schematic view of the instruments orbiting in the A-Train constellation, a Abstract—Although the volume of the remote sensing data group of satellites that flies in formation in order to provide managed by the Earth Observing System Data and Information measurements that are roughly coincident in time and space. System is formidable, an oft-overlooked challenge is the variety A-Train includes satellites operated by NASA, ESA and of data. The diversity in satellite instruments, science disciplines and user communities drives cost as much or more as the data JAXA; EOSDIS distributes at least some products from all of volume. Several strategies are used to tame this variety: data the A-Train satellites. allocation to distinct centers of expertise; a common metadata These satellites host several different kinds of instruments, repository for discovery, data format standards and conventions; with varying horizontal and vertical resolution. Typically, and services that further abstract the variations in data. horizontal coverage, vertical resolution and horizontal resolution trade off amongst each other. CALIPSO (Cloud- Index Terms—data storage systems, data systems, information Aerosol Lidar and Infrared Pathfinder Satellite Observations), architecture, remote sensing, search problems. for example, hosts a laser-based instrument to make high- vertical-resolution measurements of atmospheric aerosols and I. INTRODUCTION clouds for very small areas (90 m footprint). Conversely, Aqua hosts the Moderate Resolution Imaging HE National Aeronautics and Space Administration Spectroradiometer (MODIS), which takes pictures in the T(NASA) has been launching Earth observation satellites visible and infrared spectrum over very wide (>2000 km) for several decades.
    [Show full text]
  • Design and Implementation for Earth Radiation Budget, Cloud, Aerosol
    BryanA Baum Design and Implementation and Bruce R. Barkstrom Of a Prototype Data System NASAtmospheriA Langlecy ScienceResearcsh Division Center, for Earth Radiation Budget, Hampton, Virginia Cloud, Aerosol, and Chemistry Data Abstract theoretical modeling of various aspects of the earth- atmosphere system and the reduction of vast amounts The Earth Observing System (EOS) will collect data from a large of data. number of satellite-borne instruments, beginning later in this de- cade. To make data accessible to the scientific community, NASA The success of the GCRP largely depends on how will build an EOS Data and Information System (EOSDIS). As an well we handle the data collected by instruments on initial effort to accelerate the development of EOSDIS and to gain the earth's surface, in airplanes, and on satellites, experience with such an information system, NASA and other together with the products generated from these data. agencies are working on a prototype system called Version 0 (VO). In support of the GCRP effort, NASA has proposed the This effort will provide improved access to pre-EOS earth science data throughout the early EOSDIS period. Based on recommenda- Earth Observing System Data and Information Sys- tions from the EOSDIS Science Advisory Panel, EOSDIS will have tem (EOSDIS). several distributed active archive centers (DAACs). Each DAAC will EOSDIS is being designed to archive and distribute specialize in particular datasets. This paper describes work at the much of the data previously collected from regional NASA Langley Research Center's (LaRC) DAAC. field measurements, satellite platforms, and other The Version 0 Langley DAAC began archiving and distributing existing datasets pertaining to the earth's radiation budget, clouds, sources.
    [Show full text]