Thor's Legions American Meteorological Society Historical Monograph Series the History of Meteorology: to 1800, by H

Total Page:16

File Type:pdf, Size:1020Kb

Thor's Legions American Meteorological Society Historical Monograph Series the History of Meteorology: to 1800, by H Thor's Legions American Meteorological Society Historical Monograph Series The History of Meteorology: to 1800, by H. Howard Frisinger (1977/1983) The Thermal Theory of Cyclones: A History of Meteorological Thought in the Nineteenth Century, by Gisela Kutzbach (1979) The History of American Weather (four volumes), by David M. Ludlum Early American Hurricanes - 1492-1870 (1963) Early American Tornadoes - 1586-1870 (1970) Early American Winters I - 1604-1820 (1966) Early American Winters II - 1821-1870 (1967) The Atmosphere - A Challenge: The Science of Jule Gregory Charney, edited by Richard S. Lindzen, Edward N. Lorenz, and George W Platzman (1990) Thor's Legions: Weather Support to the u.s. Air Force and Army - 1937-1987, by John F. Fuller (1990) Thor's Legions Weather Support to the U.S. Air Force and Army 1937-1987 John F. Fuller American Meteorological Society 45 Beacon Street Boston, Massachusetts 02108-3693 The views expressed in this book are those of the author and do not reflect the official policy or position of the Department of Defense or the United States Government. © Copyright 1990 by the American Meteorological Society. Permission to use figures, tables, and briefexcerpts from this monograph in scientific and educational works is hereby granted provided the source is acknowledged. All rights reserved. No part ofthis publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, elec­ tronic, mechanical, photocopying, recording, or otherwise, without the prior written permis­ sion ofthe publisher. ISBN 978-0-933876-88-0 ISBN 978-1-935704-14-0 (eBook) DOI 10.1007/978-1-935704-14-0 Softcover reprint of the hardcover 1st edition 1990 Library of Congress catalog card number 90-81187 Published by the American Meteorological Society, 45 Beacon Street, Boston, Massachusetts 02108-3693 Richard E. Hallgren, Executive Director Kenneth C. Spengler, Executive Director Emeritus Evelyn Mazur, Assistant Executive Director Arlyn S. Powell, Jr., Publications Manager Jonathan Fe1d, Publications Production Manager Editorial services for this book were provided by Designworks, Kim Dolphin, Linda Esche, Eileen Furlong, Susan McClung, and Jay Talbot. CONTENTS Illustrations, Maps, Charts and Thbles ... VB 7 World War II - Pacific. .. 179 Alaska-Aleutians. .. 179 Foreword . Xl Southwest Pacific ............ .. 182 Leyte and the Philippines .................... 186 Preface . X111 Hawaii and the South-Central Pacific. .. 188 1 Army Roots . 1 Gilberts, Marshals, Marianas, and Bonins ...... 195 Signal Service, 1870 -1891: Okinawa. .. 198 The National Service. 2 Strategic Bombing .......................... 201 Weather Reconnaissance . .. 203 2 The Great War . 9 AAFPOA Weather Central, Guam. .. 205 Hiroshima and Nagasaki .................... 206 3 Between Wars. 17 An Assessment . .. 209 The Birth Of Air Weather Service ............. 21 1937 - 1940 ................................. 26 8 Demobilization and Retrenchment - 1946 -1960. .. 213 4 World War II - The Home Front. 35 Flag Rank and Autonomy .................... 213 Leadership and Organization . 36 An Epidemic of Centrals .................... 221 Equipment and Training ..................... 49 The Rank and File .......................... 226 Women .................................. 227 5 World War II - Europe. 55 Blacks ................................... 229 The Ferry Routes ........................... 55 Research and Development .................. 230 North Africa. 67 Weather Reconnaissance. .. 232 Sicily. 71 Hardware ................................ 237 Anzio ..................................... 73 Missions ................................. 242 Arctic Reconnaissance and Ice Islands ...... .. 244 Cassino: "Operation Ludlum" . 75 Nuclear Sampling: Justifying the Fleet. .. 246 Strategic Bombing .......................... 77 The Berlin Airlift ........................... 249 Ploesti . 79 Schweinfurt . 80 255 Operation Argument: "Big Week" . 80 9 The Korean War ....................... U.S. Strategic Bombing Survey ............... 83 Organization ............... .. 259 Overlord: The Normandy Invasion ............ 85 Weather Reconnaissance . .. 264 The Forecast . 86 Supporting the Eighth Army. .. 266 The Outcome. 93 The Army Complains. .. 267 Twenty-first Weather Squadron In France and Germany. .. .. 100 10 Southeast Asia. .. .. 271 Airborne Invasion of Holland . .. 101 Advisory Years (1961 - 1964) .................. 272 The Ardennes and After ..................... 103 Combat Years (1965 -1973) ................... 276 Organization and Leadership ................ 277 6 World War II - China, Burma, India...... 107 The One-Year Tour . .. 284 Burma and India. .. 107 The Centers. .. 286 Observing Systems. .. 287 China.. .. .. 115 Weather Reconnaissance .................. 287 The "Red Network" ........................ 118 v Weather Satellites. .. 290 Appendixes 403 Other Sources. .. 291 A. Letter Adjutant General, War Department, to Weather Modification. .. 291 Chief ofthe Air Corps, "Meteorological Service," Air Operations Support (Seventh Air Force) .... 294 January 28, 1937 .......................... 403 "In-Country" . .. 294 B. Me~?randum Col. William C. McChord (Chief, "Out-Country" .......................... 297 Trammg and Operations Division, Office of Chief The Raid on Son Tay . .. 310 of the Air Corps) to Chief, Personnel Division, Ground Combat Support (USARV) . .. 312 Office of Chief of the Air Corps, ''Allocation of The Tet Offensive, 1968 ................... 315 Meteorological Officers," April 5, 1937 . .. 403 The Weather Support . .. 318 C. War Department newpaper release, ''Army Laos: "The Secret War" ................... 322 Meteorological Service to be Transferred from Withdrawal Years (1973 - 1975) . .. 325 Signal Corps," June 18, 1937 . .. 404 The Fall of Phnom Penh and Saigon ........... 334 D. Meteorological equipment issued by Army Signal The Mayaguez Incident. .. 336 Corps, World War II ....................... 405 11 After the '1\.ge of Aquarius" . .. 339 E. Letter JesseJones, Secretary of Commerce, to Henry L. Stimson, Secretary of War, September The Leadership. .. 339 28, 1944 (subject: weather reconnaissance) .... 406 The People . .. 347 F. Memorandum Henry L. Stimson, Secretary of "Peace Dividends" - Post-Vietnam Budget Cuts. 353 War, to Jesse Jones, Secretary of Commerce, n.d. Transferring Weather Reconnaissance ......... 355 (subject: weather reconnaissance) . .. 407 Tropical Storm Reconnaissance. .. 361 Sampling Mission Cutbacks. .. 365 G. Letter Gen. William C. Westmoreland, commanding general, U.S. Military Assistance Loss of the Missions ...................... 367 Command, Vietnam, to Air Weather Service A "Purple Suit" Force? ...................... 370 "30th Anniversary Message to the Air Weather The Federal Coordinator (OFCM) .......... 370 Service,"June 25,1967 ..................... 407 SAES and DDOES (JCSI]-3) ............... 372 A "Defense Meteorological Agency"? . .. 373 H. Letter and six attachments Capt. Dale G. An "Army Weather Service"? ............... 374 LaForrest (Assistant Staff Weather Officer, USAF Operations Center, Hq. USAF) to The Ascendency of Air Force Global Weather Central .. .. 375 Brig. Gen. Brent Scowcroft, Military Assistant to the President, White House, "Five Day Notable Achievements. .. 379 Weather Forecasts for the President" DMSP Satellites ........................... 381 November 29, 1972 ............. : . .. 407 The Contingencies .......................... 385 Cuban Missile Crisis, 1962 .... .. 385 Glossary 409 Yom Kippur War, 1973 ...................... 385 Abort at Desert One: Iran, 1980 . .. 387 Index..................................... 413 Grenada, 1983 . .. 392 12 Conclusion............................ 397 vi ILLUSTRATIONS, MAPS, CHARTS, GRAPHS AND TABLES Cols. Donald N. Yates, William S. Stone, Oscar W Senter, and Marcellus Duffy ................. 131 Illustrations Lt. Col. Robert B. Sykes Crash-landed B-17, Greenland Ice Cap, 1942 Briefing Sixth Air Force pilot, Albrook Field, ca. 1943 .................................... 132 Section I 121 Coastal defense radar used for weather, Panama Canal Zone, 1943 Col. Albert]. Myer M.Sgt. William S. Barney, Losey Field, Puerto Brig. Gen. William B. Hazen Rico, 1942 1st Lt. Adolphus W Greely and expedition survivors Col. James T. Seaver Army Signal Service soldier transmitting weather Reading anemometer, 12th Weather Squadron, observation by heliograph, Pike's Peak, late 1880s Italy, 1944 ............................... 133 DH-4B bomber, World War I ........... .. 122 Radiosonde launch, 12th Weather Squadron, Maj. William R. Blair, 1918 Italy, 1944 American Expeditionary Forces weather balloon Deciphering weather data, 12th Weather Squadron, release, 1918 Italy, 1944 1st Lt. Randolph P. Williams in balloon gondola, Theodolite tracking, 12th Weather Squadron, Scott Field, ca. 1926 ........................ 123 Italy, 1944 Capts. Randolph P. Williams, Albert W Stevens, and Libyan Desert sandstorm, ca. 1942 ............. 134 Orvil A. Anderson, 1935 Majs. Oliver K.Jones and Edward Y.W Dunn, Capt. Don McNeal and staff, Patterson Field, 1937 VIII Fighter Command ('l\jax") command post, Enlisted forecaster class marching, Patterson U.K.,1944 Field, 1938 . .. 124 Gen. Carl A. Spaatza and Col. Harold H. Bassett First observer class, Scott Field, 1939 USSTAF Weather Central officers, France, 1945 135 Weather communications, Fort Sam Houston, 1936 125 AAF Weather Service leadership, 1945 PFC Harold N. Whitfield with theodolite, Fort Sam USSR-U.S.
Recommended publications
  • Comparing Historical and Modern Methods of Sea Surface Temperature
    EGU Journal Logos (RGB) Open Access Open Access Open Access Advances in Annales Nonlinear Processes Geosciences Geophysicae in Geophysics Open Access Open Access Natural Hazards Natural Hazards and Earth System and Earth System Sciences Sciences Discussions Open Access Open Access Atmospheric Atmospheric Chemistry Chemistry and Physics and Physics Discussions Open Access Open Access Atmospheric Atmospheric Measurement Measurement Techniques Techniques Discussions Open Access Open Access Biogeosciences Biogeosciences Discussions Open Access Open Access Climate Climate of the Past of the Past Discussions Open Access Open Access Earth System Earth System Dynamics Dynamics Discussions Open Access Geoscientific Geoscientific Open Access Instrumentation Instrumentation Methods and Methods and Data Systems Data Systems Discussions Open Access Open Access Geoscientific Geoscientific Model Development Model Development Discussions Open Access Open Access Hydrology and Hydrology and Earth System Earth System Sciences Sciences Discussions Open Access Ocean Sci., 9, 683–694, 2013 Open Access www.ocean-sci.net/9/683/2013/ Ocean Science doi:10.5194/os-9-683-2013 Ocean Science Discussions © Author(s) 2013. CC Attribution 3.0 License. Open Access Open Access Solid Earth Solid Earth Discussions Comparing historical and modern methods of sea surface Open Access Open Access The Cryosphere The Cryosphere temperature measurement – Part 1: Review of methods, Discussions field comparisons and dataset adjustments J. B. R. Matthews School of Earth and Ocean Sciences, University of Victoria, Victoria, BC, Canada Correspondence to: J. B. R. Matthews ([email protected]) Received: 3 August 2012 – Published in Ocean Sci. Discuss.: 20 September 2012 Revised: 31 May 2013 – Accepted: 12 June 2013 – Published: 30 July 2013 Abstract. Sea surface temperature (SST) has been obtained 1 Introduction from a variety of different platforms, instruments and depths over the past 150 yr.
    [Show full text]
  • ESSENTIALS of METEOROLOGY (7Th Ed.) GLOSSARY
    ESSENTIALS OF METEOROLOGY (7th ed.) GLOSSARY Chapter 1 Aerosols Tiny suspended solid particles (dust, smoke, etc.) or liquid droplets that enter the atmosphere from either natural or human (anthropogenic) sources, such as the burning of fossil fuels. Sulfur-containing fossil fuels, such as coal, produce sulfate aerosols. Air density The ratio of the mass of a substance to the volume occupied by it. Air density is usually expressed as g/cm3 or kg/m3. Also See Density. Air pressure The pressure exerted by the mass of air above a given point, usually expressed in millibars (mb), inches of (atmospheric mercury (Hg) or in hectopascals (hPa). pressure) Atmosphere The envelope of gases that surround a planet and are held to it by the planet's gravitational attraction. The earth's atmosphere is mainly nitrogen and oxygen. Carbon dioxide (CO2) A colorless, odorless gas whose concentration is about 0.039 percent (390 ppm) in a volume of air near sea level. It is a selective absorber of infrared radiation and, consequently, it is important in the earth's atmospheric greenhouse effect. Solid CO2 is called dry ice. Climate The accumulation of daily and seasonal weather events over a long period of time. Front The transition zone between two distinct air masses. Hurricane A tropical cyclone having winds in excess of 64 knots (74 mi/hr). Ionosphere An electrified region of the upper atmosphere where fairly large concentrations of ions and free electrons exist. Lapse rate The rate at which an atmospheric variable (usually temperature) decreases with height. (See Environmental lapse rate.) Mesosphere The atmospheric layer between the stratosphere and the thermosphere.
    [Show full text]
  • Investigating the Climate System Precipitationprecipitation “The Irrational Inquirer”
    Educational Product Educators Grades 5–8 Investigating the Climate System PrecipitationPrecipitation “The Irrational Inquirer” PROBLEM-BASED CLASSROOM MODULES Responding to National Education Standards in: English Language Arts ◆ Geography ◆ Mathematics Science ◆ Social Studies Investigating the Climate System PrecipitationPrecipitation “The Irrational Inquirer” Authored by: CONTENTS Mary Cerullo, Resources in Science Education, South Portland, Maine Grade Levels; Time Required; Objectives; Disciplines Encompassed; Key Terms; Key Concepts . 2 Prepared by: Stacey Rudolph, Senior Science Prerequisite Knowledge . 3 Education Specialist, Institute for Global Environmental Strategies Additional Prerequisite Knowledge and Facts . 5 (IGES), Arlington, Virginia Suggested Reading/Resources . 5 John Theon, Former Program Scientist for NASA TRMM Part 1: How are rainfall rates measured? . 6 Editorial Assistance, Dan Stillman, Truth Revealed after 200 Years of Secrecy! Science Communications Specialist, Pre-Activity; Activity One; Activity Two; Institute for Global Environmental Activity Three; Extensions. 8 Strategies (IGES), Arlington, Virginia Graphic Design by: Part 2: How is the intensity and distribution Susie Duckworth Graphic Design & of rainfall determined? . 9 Illustration, Falls Church, Virginia Airplane Pilot or Movie Critic? Funded by: Activity One; Activity Two. 9 NASA TRMM Grant #NAG5-9641 Part 3: How can you study rain? . 10 Give us your feedback: Foreseeing the Future of Satellites! To provide feedback on the modules Activity One; Activity Two . 10 online, go to: Activity Three; Extensions . 11 https://ehb2.gsfc.nasa.gov/edcats/ educational_product Unit Extensions . 11 and click on “Investigating the Climate System.” Appendix A: Bibliography/Resources . 12 Appendix B: Assessment Rubrics & Answer Keys. 13 NOTE: This module was developed as part of the series “Investigating the Climate Appendix C: National Education Standards.
    [Show full text]
  • Dr. Louis Uccellini Assistant Administrator for Weather Services and Director of the National Weather Service, National Oceanic and Atmospheric Administration, U.S
    Dr. Louis Uccellini Assistant Administrator for Weather Services and Director of the National Weather Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce Testimony to the Environment Subcommittee of the Committee on Science, Space, and Technology United States House of Representatives Field Hearing: Weathering the Storm: Improving Hurricane Resiliency through Research July 22, 2019 Good morning Chairwoman Fletcher, Ranking Member Marshall, and Members of the Subcommittee. I am Dr. Louis Uccellini, Director of the National Oceanic and Atmospheric Administration’s (NOAA) National Weather Service (NWS). Within the NWS, NOAA’s National Hurricane Center (NHC) issues the official forecast for all Atlantic and eastern Pacific tropical cyclones (hurricanes, tropical storms and tropical depressions) and their precursors. It is my honor to testify before you today on the state of the United States hurricane forecasting capability; our efforts to improve our understanding and prediction of hurricane impacts from storm surge, heavy precipitation, and high winds; and what hurricane research focus areas are needed to improve prediction. I come before you today to report that hurricane forecasting accuracy has improved tremendously over the past two decades. The NHC track (storm location) forecast errors have decreased every decade since forecast accuracy records were established in the 1960’s, and NHC has set new records almost every year. For perspective, the average two-day Atlantic forecast location error was reduced from around 300 miles (approximately 260 nautical miles (n mi), see Fig. 1) in the 1960s to near 85 miles in the 2010s. The five-day forecast for storm location is now better than the day-and-a-half forecast was in the 1970s.
    [Show full text]
  • 5-6 Meteorology Notes
    What is meteorology? A. METEOROLOGY: an atmospheric science that studies the day to day changes in the atmosphere 1. ATMOSPHERE: the envelope of gas that surrounds the surface of Earth; the air 2. WEATHER: the day to day changes in the atmosphere caused by shifts in temperature, air pressure, and humidity B. Meteorologists are scientists that study atmospheric sciences that include the following: 1. CLIMATOLOGY: the study of climate 2. ATMOSPHERIC CHEMISTRY: the study of chemicals in the air 3. ATMOSPHERIC PHYSICS: the study of how air behaves 4. HYRDOMETEOROLOGY: the study of how oceans interact with weather What is the atmosphere? A. The earth’s atmosphere is made of air. 1. Air is a mixture of matter that includes the following: a. 78% nitrogen gas b. 21% oxygen gas c. 0.04% carbon dioxide d. 0.96% other components like water vapor, dust, smoke, salt, methane, etc. 2. The atmosphere goes from the Earth’s surface to 700km up. 3. The atmosphere is divided into 4 main layers as one ascends. What is the atmosphere? a. TROPOSPHERE: contains most air, where most weather occurs, starts at sea level b. STRATOSPHERE: contains the ozone layer that holds back some UV radiation c. MESOSPHERE: slows and burns up meteoroids d. THERMOSPHERE: absorbs some energy from the sun What is the atmosphere? B. The concentration of air in the atmosphere increases the closer one gets to sea level. 1. The planet’s gravity pulls the atmosphere against the surface. 2. Air above pushes down on air below, causing a higher concentration in the troposphere.
    [Show full text]
  • HISTORY of WEATHER OBSERVATIONS Fort Snelling, Minnesota 1819 - 1892
    HISTORY OF WEATHER OBSERVATIONS Fort Snelling, Minnesota 1819 - 1892 December 2005 Prepared by: Gary K. Grice Information Manufacturing Corporation Rocket Center, West Virginia Peter Boulay Minnesota State Climatology Office DNR-Waters St. Paul, Minnesota This report was prepared for the Midwestern Regional Climate Center under the auspices of the Climate Database Modernization Program, NOAA’ National Climatic Data Center, Asheville, North Carolina TABLE OF CONTENTS Acknowledgments ii LIST OF ILLUSTRATIONS iii INTRODUCTION Historical Overview 1 Goal of the Study 3 LOCATION OF OBSERVATIONS 4 INSTRUMENTATION Parameters Measured/Observed 8 Instrument Type and Exposure 15 OTHER OBSERVATIONS 25 BIBLIOGRAPHY 26 APPENDIX Methodology 28 i Acknowledgments Previous research by Charles Fisk (Master’s Thesis) and by Tom St. Martin (self-published) was very helpful in developing a time line for this report. Their hard work and excellent research are greatly appreciated. The authors also appreciate the expert advice and assistance provided by the staff of the Minnesota Historical Society. Text, photographs, and particularly staff insights, were invaluable in answering specific questions relevant to Fort Snelling. ii LIST OF ILLUSTRATIONS Figures 1. Fort Snelling and Surrounding Area 1 2. Location of Fort Snelling 2 3. Topographical Map of Fort Snelling 4 4. Photograph of Fort Snelling (1860s) 5 5. Schematic of Reconstructed Fort Snelling 7 6. Drawing of the Interior of Fort Snelling (1853) 7 7. Observation Form for St. Peter (1820) 8 8. Observation Form for Fort Snelling (1836) 10 9. Observation Form for Fort Snelling (1841) 11 10A&B. Observation Forms for Fort Snelling (1843) 13 11. Observation Form for Fort Snelling (1888) 15 12.
    [Show full text]
  • Lecture 7A: Cloud Development and Forms
    Lecture 7a: Cloud Development and Forms (from “The Blue Planet”) Why Clouds Form Cloud Types ESS55 Prof. Jin-Yi Yu Why Clouds Form? Clouds form when air rises and becomes saturated in response to adiabatic cooling. ESS55 Prof. Jin-Yi Yu Four Ways to Lift Air Upward (1) Localized Convection cold front (2) Convergence (4) Frontal Lifting Lifting warm front (3) Orographic Lifting ESS55 (from “The Blue Planet”) Prof. Jin-Yi Yu Orographic Lifting ESS55 Prof. Jin-Yi Yu Frontal Lifting When boundaries between air of unlike temperatures (fronts) migrate, warmer air is pushed aloft. This results in adiabatic cooling and cloud formation. Cold fronts occur when warm air is displaced by cooler air. Warm fronts occur when warm air rises over and displaces cold air. ESS55 Prof. Jin-Yi Yu Cloud Type Based On Properties Four basic cloud categories: Cirrus --- thin, wispy cloud of ice. Stratus --- layered cloud Cumulus --- clouds having vertical development. Nimbus --- rain-producing cloud These basic cloud types can be combined to generate ten different cloud types, such as cirrostratus clouds that have the characteristics of cirrus clouds and stratus clouds. ESS55 Prof. Jin-Yi Yu Cloud Types ESS55 Prof. Jin-Yi Yu Cloud Types Based On Height If based on cloud base height, the ten principal cloud types can then grouped into four cloud types: High clouds -- cirrus, cirrostratus, cirroscumulus. Middle clouds – altostratus and altocumulus Low clouds – stratus, stratocumulus, and nimbostartus Clouds with extensive vertical development – cumulus and cumulonimbus. (from “The Blue Planet”) ESS55 Prof. Jin-Yi Yu Cloud Classifications (from “The Blue Planet”) ESS55 Prof.
    [Show full text]
  • Some Basic Elements of Thunderstorm Forecasting
    (] NOAA TECHNICAL MEMORANDUM NWS CR-69 SOME BASIC ELEMENTS OF THUNDERSTORM FORECASTING Richard P. McNulty National Weather Service Forecast Office Topeka, Kansas May 1983 UNITED STATES I Nalion•l Oceanic and I National Weather DEPARTMENT OF COMMERCE Almospheric Adminislralion Service Malcolm Baldrige. Secretary John V. Byrne, Adm1mstrator Richard E. Hallgren. Director SOME BASIC ELEMENTS OF THUNDERSTORM FORECASTING 1. INTRODUCTION () Convective weather phenomena occupy a very important part of a Weather Service office's forecast and warning responsibilities. Severe thunderstorms require a critical response in the form of watches and warnings. (A severe thunderstorm by National Weather Service definition is one that produces wind gusts of 50 knots or greater, hail of 3/4 inch diameter or larger, and/or tornadoes.) Nevertheless, heavy thunderstorms, those just below severe in­ ·tensity or those producing copious rainfall, also require a certain degree of response in the form of statements and often staffing. (These include thunder­ storms producing hail of any size and/or wind gusts of 35 knots or greater, or storms producing sufficiently intense rainfall to possess a potential for flash flooding.) It must be realized that heavy thunderstorms can have as much or more impact on the public, and require as much action by a forecast office, as do severe thunderstorms. For the purpose of this paper the term "signi­ ficant convection" will refer to a combination of these two thunderstorm classes. · It is the premise of this paper that significant convection, whether heavy or severe, develops from similar atmospheric situations. For effective opera­ tions, forecasters at Weather Service offices should be familiar with those factors which produce significant convection.
    [Show full text]
  • Atlantic Hurricane Database Uncertainty and Presentation of a New Database Format
    3576 MONTHLY WEATHER REVIEW VOLUME 141 Atlantic Hurricane Database Uncertainty and Presentation of a New Database Format CHRISTOPHER W. LANDSEA AND JAMES L. FRANKLIN NOAA/NWS/NCEP/National Hurricane Center, Miami, Florida (Manuscript received 4 September 2012, in final form 31 December 2012) ABSTRACT ‘‘Best tracks’’ are National Hurricane Center (NHC) poststorm analyses of the intensity, central pressure, position, and size of Atlantic and eastern North Pacific basin tropical and subtropical cyclones. This paper estimates the uncertainty (average error) for Atlantic basin best track parameters through a survey of the NHC Hurricane Specialists who maintain and update the Atlantic hurricane database. A comparison is then made with a survey conducted over a decade ago to qualitatively assess changes in the uncertainties. Finally, the implications of the uncertainty estimates for NHC analysis and forecast products as well as for the pre- diction goals of the Hurricane Forecast Improvement Program are discussed. 1. Introduction and compares the survey results to independently de- rived estimates from Torn and Snyder (2012). A similar ‘‘Best tracks’’ are National Hurricane Center (NHC) survey conducted in 1999 provides some insight into poststorm analyses of the intensity, central pressure, changes in dataset quality during the last decade. Fi- position, and size of tropical and subtropical cyclones nally, we discuss implications of the uncertainty esti- (Jarvinen et al. 1984), and represent the official histori- mates for NHC analysis/forecast products, as well as cal record for each storm. These analyses (apart from for the predictability goals of the Hurricane Forecast those for size) make up the database known as the hur- Improvement Program (Gall et al.
    [Show full text]
  • Overview of the NASA Fourth Convection and Moisture Experiment
    OverviewOverview ofof thethe NASANASA FourthFourth CConvectiononvection AAndnd MMoistureoisture ExExperimentperiment Ramesh Kakar, Program Scientist Earth Science Enterprise NASA Headquarters Robbie Hood, Lead Mission Scientist NASA / Marshall Space Flight Center MainMain ResearchResearch IssuesIssues SupportingSupporting thethe NASANASA EarthEarth ScienceScience EnterpriseEnterprise • Is the global water cycle through the atmosphere accelerating? • How are variations in local weather, precipitation and water resources related to global climate change? • How well can weather forecasting be improved by new global observations and advances in satellite data assimilation? SpecificSpecific TropicalTropical CycloneCyclone ResearchResearch TopicsTopics • Observation and modeling of processes related to rapid intensification of tropical cyclones • Observation and modeling of storm movement • Improving remote sensing techniques to observe wind, temperature, and moisture in tropical cyclones and their environment • Enhanced understanding of tropical convective system structure and dynamics • Improved understanding of scale interactions between intense convection and mesoscale systems TheThe FourthFourth CConvectiononvection AAndnd MMoistureoisture EXEXperimentperiment • Science Team – 29 Principal Investigators from 5 NASA Centers, 10 universities, and 2 other governmental agencies – Collaborative partners with NOAA, United States Weather Research Program, and Air Force Reserve 53rd Weather Reconnaissance Squadron • Field Operations – Conducted
    [Show full text]
  • An Improved Hurrican Wind Vector Retrieval Algorithm Using Sea Winds Scatterometer
    University of Central Florida STARS Electronic Theses and Dissertations, 2004-2019 2009 An Improved Hurrican Wind Vector Retrieval Algorithm Using Sea Winds Scatterometer Peth Laupattarakasem University of Central Florida Part of the Electrical and Electronics Commons Find similar works at: https://stars.library.ucf.edu/etd University of Central Florida Libraries http://library.ucf.edu This Doctoral Dissertation (Open Access) is brought to you for free and open access by STARS. It has been accepted for inclusion in Electronic Theses and Dissertations, 2004-2019 by an authorized administrator of STARS. For more information, please contact [email protected]. STARS Citation Laupattarakasem, Peth, "An Improved Hurrican Wind Vector Retrieval Algorithm Using Sea Winds Scatterometer" (2009). Electronic Theses and Dissertations, 2004-2019. 4009. https://stars.library.ucf.edu/etd/4009 AN IMPROVED HURRICANE WIND VECTOR RETRIEVAL ALGORITHM USING SEAWINDS SCATTEROMETER by PETH LAUPATTARAKASEM M.S. Florida Atlantic University, 2003 A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the School of Electrical Engineering and Computer Science in the College of Engineering and Computer Science at the University of Central Florida Orlando, Florida Spring Term 2009 Major Professor: W. Linwood Jones © 2009 Peth Laupattarakasem ii ABSTRACT Over the last three decades, microwave remote sensing has played a significant role in ocean surface wind measurement, and several scatterometer missions have flown in space since early 1990’s. Although they have been extremely successful for measuring ocean surface winds with high accuracy for the vast majority of marine weather conditions, unfortunately, the conventional scatterometer cannot measure extreme winds condition such as hurricane.
    [Show full text]
  • Joint Force Quarterly Joint Education for the 21St Century a PROFESSIONAL MILITARY JOURNAL by Robert B
    0107 C1 3/4/04 7:02 AM Page 1 JOINT FORCEJFQ QUARTERLY East Asian Security Interservice Training Rwanda JFACC—The Next Step Battle for the Marianas Spring95 Uphold Democracy A PROFESSIONAL MILITARY JOURNAL 0207 Prelims 3/3/04 3:14 PM Page ii To have command of the air means to be in a position to prevent the enemy from flying while retaining the ability to fly oneself. —Giulio Douhet Cover 2 0207 Prelims 3/3/04 3:14 PM Page iii JFQ Page 1—no folio 0207 Prelims 3/3/04 3:14 PM Page 2 CONTENTS A Word from the Chairman 4 by John M. Shalikashvili Asia-Pacific Challenges 6 by Hans Binnendijk and Patrick M. Cronin JFQ FORUM A Commander in Chief Looks at East Asia 8 by Richard C. Macke JFQ The PLA: In Search of a Strategic Focus 16 by Ronald N. Montaperto Japan’s Emergent Security Policy 20 by Patrick M. Cronin Assessing the U.S.-North Korea 23 Agreement by Masao Okonogi South Korea’s Defense Posture 26 by Young-Koo Cha and Kang Choi Asian Multilateralism: Dialogue on Two Tracks PHOTO CREDITS 32 by Ralph A. Cossa The cover photograph shows USS San Jacinto with USS Barry (astern) transiting the Suez Canal (U.S. Navy/Dave Miller); the cover insets (from top) include Chinese honor guard (U.S. America and the Asia-Pacific Region Army/Robert W. Taylor); T–37 trainer (U.S. Air 37 by William T. Pendley Force); refugees in Goma, Zaire, during Opera- tion Support Hope (U.S.
    [Show full text]