NASA) Report Regarding Program and Cost Assessment and Control Assessment Pursuant to Section 1203(B)(L) of the NASA Authorization Act of 2010 (P.L
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Gao-16-309Sp, Nasa
United States Government Accountability Office Report to Congressional Committees March 2016 NASA Assessments of Major Projects GAO-16-309SP March 2016 NASA Assessments of Major Projects Highlights of GAO-16-309SP, a report to congressional committees Why GAO Did This Study What GAO Found This report provides GAO’s annual The cost and schedule performance of the National Aeronautics and Space snapshot of how well NASA is planning Administration’s (NASA) portfolio of major projects has improved over the past 5 and executing its major acquisition years, and most current projects are adhering to their committed cost and projects. In March 2015, GAO found schedule baselines. Over the last 2 years, eight projects in the portfolio that projects continued a general established cost and schedule baselines. As the figure below shows, as the positive trend of limiting cost and average age of the portfolio has decreased, the cost performance of the portfolio schedule growth, maturing has improved, because new projects are less likely to have experienced cost technologies, and stabilizing designs, growth. but that NASA faced several challenges that could affect its ability to Development Cost Performance of NASA’s Major Project Portfolio Has Improved as Average effectively manage its portfolio. Project Age Has Decreased The explanatory statement of the House Committee on Appropriations accompanying the Omnibus Appropriations Act, 2009 included a provision for GAO to prepare project status reports on selected large-scale NASA programs, projects, and activities. This is GAO’s eighth annual assessment of NASA’s major projects. This report describes (1) the cost and schedule performance of NASA’s portfolio of major projects, (2) the maturity of technologies and stability of project designs at key milestones, and (3) NASA’s progress in implementing Note: GAO presents cost and schedule growth both including and excluding JWST because the initiatives to manage acquisition risk magnitude of JWST’s cost growth has historically masked the performance of the rest of the portfolio. -
High-Temporal-Resolution Water Level and Storage Change Data Sets for Lakes on the Tibetan Plateau During 2000–2017 Using Mult
Earth Syst. Sci. Data, 11, 1603–1627, 2019 https://doi.org/10.5194/essd-11-1603-2019 © Author(s) 2019. This work is distributed under the Creative Commons Attribution 4.0 License. High-temporal-resolution water level and storage change data sets for lakes on the Tibetan Plateau during 2000–2017 using multiple altimetric missions and Landsat-derived lake shoreline positions Xingdong Li1, Di Long1, Qi Huang1, Pengfei Han1, Fanyu Zhao1, and Yoshihide Wada2 1State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing, China 2International Institute for Applied Systems Analysis (IIASA), 2361 Laxenburg, Austria Correspondence: Di Long ([email protected]) Received: 21 February 2019 – Discussion started: 15 March 2019 Revised: 4 September 2019 – Accepted: 22 September 2019 – Published: 28 October 2019 Abstract. The Tibetan Plateau (TP), known as Asia’s water tower, is quite sensitive to climate change, which is reflected by changes in hydrologic state variables such as lake water storage. Given the extremely limited ground observations on the TP due to the harsh environment and complex terrain, we exploited multiple altimetric mis- sions and Landsat satellite data to create high-temporal-resolution lake water level and storage change time series at weekly to monthly timescales for 52 large lakes (50 lakes larger than 150 km2 and 2 lakes larger than 100 km2) on the TP during 2000–2017. The data sets are available online at https://doi.org/10.1594/PANGAEA.898411 (Li et al., 2019). With Landsat archives and altimetry data, we developed water levels from lake shoreline posi- tions (i.e., Landsat-derived water levels) that cover the study period and serve as an ideal reference for merging multisource lake water levels with systematic biases being removed. -
Algorithm Theoretical Basis Document (ATBD) for Land
ICE, CLOUD, and Land Elevation Satellite (ICESat-2) Algorithm Theoretical Basis Document (ATBD) for Land - Vegetation Along-track products (ATL08) Contributions by Land/VEG SDT Team Members and ICESAt-2 Project Science Office (Amy Neuenschwander, Sorin Popescu, Ross Nelson, David Harding, Katherine Pitts, John Robbins, Dylan Pederson, and Ryan Sheridan) ATBD Document prepared by Amy Neuenschwander June 2018 Content reviewed: technical approach, assumptions, scientific soundness, maturity, scientific utility of the data product 21 Contents 1 INTRODUCTION 8 1.1. Background 9 1.2 Photon Counting Lidar 11 1.3 The ICESat-2 concept 12 1.4 Height Retrieval from ATLAS 16 1.5 Accuracy Expected from ATLAS 17 1.6 Additional Potential Height Errors from ATLAS 19 1.7 Dense Canopy Cases 20 1.8 Sparse Canopy Cases 20 2. ATL08: DATA PRODUCT 21 2.1 Subgroup: Land Parameters 23 2.1.1 Georeferenced_segment_number_beg 24 2.1.2 Georeferenced_segment_number_end 25 2.1.3 Segment_terrain_height_mean 25 2.1.4 Segment_terrain_height_med 25 2.1.5 Segment_terrain_height_min 25 2.1.6 Segment_terrain_height_max 26 2.1.7 Segment_terrain_height_mode 26 2.1.8 Segment_terrain_height_skew 26 2.1.9 Segment_number_terrain_photons 26 2.1.10 Segment height_interp 27 2.1.11 Segment h_te_std 27 2.1.12 Segment_terrain_height_uncertainty 27 2.1.13 Segment_terrain_slope 27 21 2.1.14 Segment number_of_photons 27 2.1.15 Segment_terrain_height_best_fit 28 2.2 Subgroup: Vegetation Parameters 28 2.2.1 Georeferenced_segment_number_beg 31 2.2.2 Georeferenced_segment_number_end 31 2.2.3 -
GLAS HDF Standard Data Product Specification Revision - November 01, 2012
ICE, CLOUD, and Land Elevation Satellite (ICESat) Project GLAS_HDF Standard Data Product Specification Revision - November 01, 2012 SGT/Jeffrey Lee Cryospheric Sciences Laboratory Hydrospheric and Biospheric Processes NASA Goddard Space Flight Center Goddard Space Flight Center Greenbelt, Maryland National Aeronautics and Space Administration GLAS_HDF Standard Data Product Specification Revision - Table of Contents Table of Contents ............................................................................................... 1-1 List of Figures ..................................................................................................... 1-3 List of Tables ...................................................................................................... 1-3 1.0 Introduction ................................................................................................ 1-1 1.1 Identification of Document ...................................................................... 1-1 1.2 Scope ..................................................................................................... 1-1 1.3 Purpose and Objectives ......................................................................... 1-1 1.4 Acknowledgements ................................................................................ 1-1 1.5 Document Status and Schedule ............................................................. 1-2 1.6 Document Change History ..................................................................... 1-2 2.0 Related Documentation ............................................................................ -
The Web of Glory: a Study of the Concept of Man As Expressed in the Christian Fantasy Novels of Charles Williams
Loyola University Chicago Loyola eCommons Master's Theses Theses and Dissertations 1964 The Web of Glory: A Study of the Concept of Man as Expressed in the Christian Fantasy Novels of Charles Williams Beverlee Fissinger Smith Loyola University Chicago Follow this and additional works at: https://ecommons.luc.edu/luc_theses Part of the English Language and Literature Commons Recommended Citation Smith, Beverlee Fissinger, "The Web of Glory: A Study of the Concept of Man as Expressed in the Christian Fantasy Novels of Charles Williams" (1964). Master's Theses. 1896. https://ecommons.luc.edu/luc_theses/1896 This Thesis is brought to you for free and open access by the Theses and Dissertations at Loyola eCommons. It has been accepted for inclusion in Master's Theses by an authorized administrator of Loyola eCommons. For more information, please contact [email protected]. Copyright © 1964 Beverlee Fissinger Smith THE WEB OF GLORY: A STUDY OF THE CONCEPT OF MAl{ AS EXPRESSED IN THE CHRISTIAN FANTASY NOVELS OF CHARLES WILLIAMS BEVERLEE FISSINGER SMITH A Th•• is Submitted to the Faculty or the Graduate School ot Loyola University 1n Partial Pultillment at the Requirement. tor the Degree ot Master ot Arts June 1964 TABLE OF CONTENTS Page Lite. • • • • • • • • • • • • • • • • • • • • • • 1 8ig1a. • • • • • • • • • • • • • • • • • • • • •• ii Chapter I. AN DrfRODUOTION TO CHARLES WILLIAMS. • • • • 1 Purpose and Procedure ot Thesis--Wl1liama the Man- Family Baokground--Education--Oxtord University Press--Wll1iwms the wrlter-~Intel1ectual Gitts- Conversations with the "Oxfol'd Circlett·... the Poet- Beatriclan rove in Early Sonnets--Orlginality ot Later Poet17 II. THE WEB OF GLORY. • • • • • • • • • • • • •• 18 Saoramental View ot Man and Nature--God as the Source 01' Good and Evll--Tne Way ot Attil'mation- Co-tnherenoe--Tbe Index ot the Body--The Image 01' the City--Substitution and Exchange--Meohanistio and Moral Ttme--Oonversion of Energies--In-coherence and Isolation--The Perversion of tbe Images III. -
Cloudsat-CALIPSO Launch
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CloudSat-CALIPSO Launch Press Kit April 2006 Media Contacts Erica Hupp Policy/Program (202) 358-1237 NASA Headquarters, Management [email protected] Washington Alan Buis CloudSat Mission (818) 354-0474 NASA Jet Propulsion Laboratory, [email protected] Pasadena, Calif. Emily Wilmsen Colorado Role - CloudSat (970) 491-2336 Colorado State University, [email protected] Fort Collins, Colo. Julie Simard Canada Role - CloudSat (450) 926-4370 Canadian Space Agency, [email protected] Saint-Hubert, Quebec, Canada Chris Rink CALIPSO Mission (757) 864-6786 NASA Langley Research Center, [email protected] Hampton, Va. Eliane Moreaux France Role - CALIPSO 011 33 5 61 27 33 44 Centre National d'Etudes [email protected] Spatiales, Toulouse, France George Diller Launch Operations (321) 867-2468 NASA Kennedy Space Center, [email protected] Fla. Contents General Release ......................................................................................................................... 3 Media Services Information ........................................................................................................ 5 Quick Facts ................................................................................................................................. 6 Mission Overview ....................................................................................................................... 7 CloudSat Satellite .................................................................................................................... -
Learning from the Nustar Launch Delay
STORY | ASK MAGAZINE | 5 laitbrO/hceltaC-LPJ/ASA N:itder CotohP N:itder laitbrO/hceltaC-LPJ/ASA Engineers in the final stages of assembling NuSTAR. LEARNING FROM THE NUSTAR LAUNCH DELAY NuSTAR, the Nuclear Spectroscopic Telescope Array, contains the first focusing telescopes designed to look at high-energy X-ray radiation. It is expected to contribute to a better understanding of collapsing stars and black holes. BY DON COHEN 6 | ASK MAGAZINE Because NuSTAR is designed to function in an equatorial through a series of increasingly demanding flights that start by orbit, it launched on a Pegasus XL rocket from a point south determining basic airworthiness and eventually map the limits of Kwajalein Atoll, in the Marshall Islands, on June 13, 2012. of safe performance. Simulations matter for aircraft design and Built by Orbital Sciences Corporation, the Pegasus is carried construction, too, of course, but not as critically. to approximately 39,000 ft. by an L-1011 aircraft. Released at Although data were arriving late from Orbital, the LSP that altitude, the three-stage, winged rocket ignites its first-stage technical team worked extremely hard to execute the plan motor to continue its journey to orbit. during February and early March, and the mid-March launch The June launch came almost three months after a planned date still seemed achievable, provided no further serious issues early March launch date. The story of that delay—why it were identified. Unfortunately, as the date for the all-important happened and what both NASA and Orbital Sciences learned guidance, navigation, and control review approached, both from the experience—offers insight into how NASA deals with Orbital and LSP were finding that simulations exhibited far too technical risks and into the agency’s developing relationships many failed cases to proceed. -
Icesat) Spacecraft Immediately Following Its Initial Mechanical Integration on June 18Th, 2002
Goddard Space Flight Center Greenbelt, Maryland 20771 FS-2002-9-047-GSFC The Geoscience Laser Altimeter System (GLAS) on the Ice, Cloud, and land Elevation Satellite (ICESat) spacecraft immediately following its initial mechanical integration on June 18th, 2002. Note that ICESat’s solar arrays have not yet been attached. Left – Gordon Casto, NASA/GSFC. Right – John Bishop, Mantech. Courtesy of Ball Aerospace & Technologies Corp. “Possible changes in the mass balance of the Antarctic and Greenland ice sheets are fundamental gaps in our understanding and are crucial to the quantification and refinement of sea-level forecasts.” —Sea-Level Change report, National Research Council (1990) “In light of…abrupt ice-sheet changes affecting global climate and sea level, enhanced emphasis on ice-sheet characterization over time is essential.” —Abrupt Climate Change report, National Research Council (2002) MISSION INTRODUCTION AND SCIENTIFIC RATIONALE Ice, Cloud and land Elevation Satellite (ICESat) Are the ice sheets that still blanket the Earth’s poles growing or shrinking? Will global sea level rise or fall? NASA’s Earth Science Enterprise (ESE) has developed the ICESat mission to provide answers to these and other questions — to help fulfill NASA’s mission to understand and protect our home planet. The primary goal of ICESat is to quantify ice sheet mass balance and understand how changes in the Earth's atmosphere and climate affect the polar ice masses and global sea level. ICESat will also measure global distributions of clouds and aerosols for studies of their effects on atmospheric processes and global change, as well as land topography, sea ice, and vegetation cover. -
NASA Symbols and Flags in the US Manned Space Program
SEPTEMBER-DECEMBER 2007 #230 THE FLAG BULLETIN THE INTERNATIONAL JOURNAL OF VEXILLOLOGY www.flagresearchcenter.com 225 [email protected] THE FLAG BULLETIN THE INTERNATIONAL JOURNAL OF VEXILLOLOGY September-December 2007 No. 230 Volume XLVI, Nos. 5-6 FLAGS IN SPACE: NASA SYMBOLS AND FLAGS IN THE U.S. MANNED SPACE PROGRAM Anne M. Platoff 143-221 COVER PICTURES 222 INDEX 223-224 The Flag Bulletin is officially recognized by the International Federation of Vexillological Associations for the publication of scholarly articles relating to vexillology Art layout for this issue by Terri Malgieri Funding for addition of color pages and binding of this combined issue was provided by the University of California, Santa Barbara Library and by the University of California Research Grants for Librarians Program. The Flag Bulletin at the time of publication was behind schedule and therefore the references in the article to dates after December 2007 reflect events that occurred after that date but before the publication of this issue in 2010. © Copyright 2007 by the Flag Research Center; all rights reserved. Postmaster: Send address changes to THE FLAG BULLETIN, 3 Edgehill Rd., Winchester, Mass. 01890 U.S.A. THE FLAG BULLETIN (ISSN 0015-3370) is published bimonthly; the annual subscription rate is $68.00. Periodicals postage paid at Winchester. www.flagresearchcenter.com www.flagresearchcenter.com 141 [email protected] ANNE M. PLATOFF (Annie) is a librarian at the University of Cali- fornia, Santa Barbara Library. From 1989-1996 she was a contrac- tor employee at NASA’s Johnson Space Center. During this time she worked as an Information Specialist for the New Initiatives Of- fice and the Exploration Programs Office, and later as a Policy Ana- lyst for the Public Affairs Office. -
Glory Science Writers' Guide (Pdf)
National Aeronautics and Space Administration Glory SCIENCE WRITERS’ GUIDE January 2011 Revealing the Effects of Aerosols and Solar Irradiance on Climate Glory SCIENCE WRITERS’ GUIDE Glory SCIENCE WRITERS’ GUIDE CONTACT INFORMATION AND MEDIA RESOURCES Please call the Public Affairs Offices at NASA, the Laboratory for Atmospheric and Space Physics at the University of Colorado, and Orbital Sciences Corporation be- fore contacting individual scientists at these organizations: NASA Headquarters Steve Cole, 202-358-0918, [email protected] NASA Goddard Institute for Space Studies Leslie McCarthy, 212-678-5507, [email protected] NASA Goddard Space Flight Center Sarah L. DeWitt, 301-286-0535, [email protected] Orbital Sciences Corporation Barron Beneski, 703-406-5528, [email protected] Laboratory for Atmospheric and Space Physics (LASP) Stephanie Renfrow, 303-735-5814, [email protected] NASA Websites http://www.nasa.gov/glory http://glory.gsfc.nasa.gov http://glory.giss.nasa.gov WRITING/EDITING Adam Voiland Sarah DeWitt DESIGN Sally Bensusen Glory SCIENCE WRITERS’ GUIDE Glory SCIENCE WRITERS’ GUIDE Cover image credit: NASA TABLE OF CONTENTS Science Overview ......................................................................... 4 Instruments .................................................................................. 5 Feature Stories New Sun-Watching Instrument to Monitor Sunlight Fluctuations ........................................................... 6 Glory Promises a New View of Perplexing -
Overview of NASA's Earth Observation Systems for Hydrology
1/21/2015 Overview of NASA’s Earth Observation Systems for Hydrology Presented by David Toll NASA Goddard Space Flight Center Code 617, Hydrological Sciences Lab Greenbelt, MD 20771 [email protected] With Contributions from Matt Rodell, Christa Peters‐ Lidard, Brad Doorn, Jared Entin, Nancy Searby, John Bolten, Scott Luthcke, Charon Birkett, Forrest Melton, Dalia Kirschbaum, George Huffman, Peggy O’Neill, Bob Brakenridge, Ana Prados, Bradley Zavodsky, Christine Lee and Dorothy Hall 22 January 2015 ACWI – SoH Meeting Present and Future NASA Earth Science Missions Planned Missions Highly relevant to hydrology SMAP, GRACE-FO, ICESat-II, JPSS, DESDynI, OCO-2 Decadal Survey Recommended Missions: CLARREO, HyspIRI, ASCENDS, SWOT, GEO-CAPE, ACE, LIST, GPM PATH, GRACE-II, SCLP, GACM, 3D-Winds 1 1/21/2015 Inadequacy of Surface Observations Issues: - Spatial coverage of existing stations - Temporal gaps and delays - Many governments unwilling to share - Measurement inconsistencies -Quality control - (Un)Representativeness of point obs Global Telecommunication System meteorological stations. Air temperature, precipitation, solar radiation, wind speed, and humidity only. USGS Groundwater Climate Response Network. Very few groundwater records available outside of River flow observations from the Global Runoff Data Centre. the U.S. Warmer colors indicate greater latency in the data record. NASA’s Hydrologic Observations Figure 1: Snow water equivalent (SWE) based on Terra/MODIS and Aqua/AMSR-E. Figure 2: Annual average precipitation from 1998 to Future observations will be provided by 2009 based on TRMM satellite observations. Future JPSS/VIIRS and DWSS/MIS. observations will be provided by GPM. Figure 5: Current lakes and reservoirs monitored by Figure 3: Daily soil moisture based on OSTM/Jason-2. -
Aqua Terra TRMM Seawifs Aura Meteor/ SAGE GRACE Icesat
GRACE Cloudsat Metop CALIPSO TRMM Aqua TOPEX Meteor/ SAGE GIFTS NOAA/ POES Landsat GOES MTSAT SeaWiFS Terra Aura MSG Jason ICESat SORCE 1 THE EARTH SYSTEM SCIENCE It is the science that studies the whole Earth as a system of many interacting parts and focuses on the changes within and between those parts. THE EARTH SYSTEM 2 THE EARTH'S ENERGY BUDGET Three main sources: external (solar radiation), internal (geothermal energy), and from Earth-Moon-Sun tidal interactions (a very small component). THE HYDROLOGIC CYCLE 3 4 5 THE GREENHOUSE EFFECT Concentration of carbon dioxide in dry air, since 1958, measured at the Mauna Loa Observatory, Hawaii (given in parts per million by volume = ppbv/1000). Annual fluctuations reflect seasonal changes in biologic uptake of CO2, while the long-term trend shows a persistent increase in the atmospheric concentration of this greenhouse gas. 6 Since the beginning of the Industrial Revolution, about 1850, the atmospheric concentration of CO2 has risen at an increasing rate (A). The increase matches the increasing rate at which CO2 has been released through the burning of fossil fuels (B). CLIMATE CHANGE 7 EARTH'S CLIMATE SYSTEM ESTIMATES OF FUTURE AVERAGE GLOBAL TEMPERATURE RISE DUE TO THE GREENHOUSE A = "Business as usual," with energy EFFECT BASED ON DIFFERENT ASSUMPTIONS supply dominated by coal, continuing deforestation, and limited or no control of methane, nitrous oxide, and carbon monoxide emissions. B = A shift toward lower-carbon fuels (e.g., natural gas), coupled with large increases in fuel efficiency, reversal of deforestation trends, and stringent carbon monoxide controls. C = A shift toward renewable sources (solar, hydro-and wind power) and nuclear energy in the second half of the twenty-first century, a phaseout of CFC emissions, and limitations on agricultural methane and nitrous oxide emissions.