Charles David Keeling Papers
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The Changing Carbon Cycle at Mauna Loa Observatory
The changing carbon cycle at Mauna Loa Observatory Wolfgang Buermann*†, Benjamin R. Lintner‡§, Charles D. Koven*, Alon Angert*¶, Jorge E. Pinzonʈ, Compton J. Tuckerʈ, and Inez Y. Fung*,** *Berkeley Atmospheric Sciences Center and ‡Department of Geography, University of California, Berkeley, CA 94720; and ʈNational Aeronautics and Space Administration/Goddard Space Flight Center, Greenbelt, MD 20771 Contributed by Inez Y. Fung, December 29, 2006 (sent for review July 6, 2006) The amplitude of the CO2 seasonal cycle at the Mauna Loa Obser- Several studies have analyzed variability in the MLO CO2 vatory (MLO) increased from the early 1970s to the early 1990s but seasonal cycle to infer the sensitivity of ecosystem dynamics to decreased thereafter despite continued warming over northern climate perturbations. The increasing trends in the seasonal continents. Because of its location relative to the large-scale amplitude of CO2 at the MLO and Point Barrow, AK, from the atmospheric circulation, the MLO receives mainly Eurasian air early 1970s to the early 1990s are postulated to be evidence of masses in the northern hemisphere (NH) winter but relatively more a temperature-related lengthening of the boreal growing season North American air masses in NH summer. Consistent with this (1). Reports of a greening trend in the satellite-derived normal- seasonal footprint, our findings indicate that the MLO amplitude ized difference vegetation index (NDVI) throughout the 1980s registers North American net carbon uptake during the warm at northern high latitudes consistent with springtime warming season and Eurasian net carbon release as well as anomalies in provided additional support for this hypothesis (5). -
Surface Ozone in the Southern Hemisphere: 20 Years of Data from a Site with a Unique Setting in El Tololo, Chile
Atmos. Chem. Phys., 17, 6477–6492, 2017 www.atmos-chem-phys.net/17/6477/2017/ doi:10.5194/acp-17-6477-2017 © Author(s) 2017. CC Attribution 3.0 License. Surface ozone in the Southern Hemisphere: 20 years of data from a site with a unique setting in El Tololo, Chile Julien G. Anet1,2, Martin Steinbacher1, Laura Gallardo3,4, Patricio A. Velásquez Álvarez5,6, Lukas Emmenegger1, and Brigitte Buchmann1 1Laboratory for Air Pollution/Environmental Technology, Swiss Federal Laboratories for Materials Science and Technology Empa, Duebendorf, Switzerland 2WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland 3Departamento de Geofísica de la Universidad de Chile, Blanco Encalada 2002, piso 4, Santiago, Chile 4Center for Climate and Resilience Research (CR2), Blanco Encalada 2002, Santiago, Chile 5Dirección Meteorológica de Chile, Av. Portales 3450, Estación Central, Santiago, Chile 6Climate and Environmental Physics, Physics Institute, University of Bern, Bern, Switzerland Correspondence to: Julien G. Anet ([email protected]) and Martin Steinbacher ([email protected]) Received: 12 July 2016 – Discussion started: 7 October 2016 Revised: 24 March 2017 – Accepted: 25 April 2017 – Published: 31 May 2017 Abstract. The knowledge of surface ozone mole fractions located over the Pacific Ocean. Therefore, due to the neg- and their global distribution is of utmost importance due to ligible influence of local processes, the ozone record also al- the impact of ozone on human health and ecosystems and the lows studying the influence of El Niño and La Niña episodes central role of ozone in controlling the oxidation capacity of on background ozone levels in South America. -
2018 NOAA Science Report National Oceanic and Atmospheric Administration U.S
2018 NOAA Science Report National Oceanic and Atmospheric Administration U.S. Department of Commerce NOAA Technical Memorandum NOAA Research Council-001 2018 NOAA Science Report Harry Cikanek, Ned Cyr, Ming Ji, Gary Matlock, Steve Thur NOAA Silver Spring, Maryland February 2019 NATIONAL OCEANIC AND NOAA Research Council noaa ATMOSPHERIC ADMINISTRATION 2018 NOAA Science Report Harry Cikanek, Ned Cyr, Ming Ji, Gary Matlock, Steve Thur NOAA Silver Spring, Maryland February 2019 UNITED STATES NATIONAL OCEANIC National Oceanic and DEPARTMENT OF AND ATMOSPHERIC Atmospheric Administration COMMERCE ADMINISTRATION Research Council Wilbur Ross RDML Tim Gallaudet, Ph.D., Craig N. McLean Secretary USN Ret., Acting NOAA NOAA Research Council Chair Administrator Francisco Werner, Ph.D. NOAA Research Council Vice Chair NOTICE This document was prepared as an account of work sponsored by an agency of the United States Government. The views and opinions of the authors expressed herein do not necessarily state or reflect those of the United States Government or any agency or Contractor thereof. Neither the United States Government, nor Contractor, nor any of their employees, make any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, product, or process disclosed, or represents that its use would not infringe privately owned rights. Mention of a commercial company or product does not constitute an endorsement by the National Oceanic and Atmospheric Administration. -
Mauna Loa Reconnaissance 2003
“Giant of the Pacific” Mauna Loa Reconnaissance 2003 Plan of encampment on Mauna Loa summit illustrated by C. Wilkes, Engraved by N. Gimbrede (Wilkes 1845; vol. IV:155) Prepared by Dennis Dougherty B.A., Project Director Edited by J. Moniz-Nakamura, Ph. D. Principal Investigator Pacific Island Cluster Publications in Anthropology #4 National Park Service Hawai‘i Volcanoes National Park Department of the Interior 2004 “Giant of the Pacific” Mauna Loa Reconnaissance 2003 Prepared by Dennis Dougherty, B.A. Edited by J. Moniz-Nakamura, Ph.D. National Park Service Hawai‘i Volcanoes National Park P.O. Box 52 Hawaii National Park, HI 96718 November, 2004 Mauna Loa Reconnaissance 2003 Executive Summary and Acknowledgements The Mauna Loa Reconnaissance project was designed to generate archival and inventory/survey level recordation for previously known and unknown cultural resources within the high elevation zones (montane, sub-alpine, and alpine) of Mauna Loa. Field survey efforts included collecting GPS data at sites, preparing detailed site plan maps and feature descriptions, providing site assessment and National Register eligibility, and integrating the collected data into existing site data bases within the CRM Division at Hawaii Volcanoes National Park (HAVO). Project implementation included both pedestrian transects and aerial transects to accomplish field survey components and included both NPS and Research Corporation University of Hawaii (RCUH) personnel. Reconnaissance of remote alpine areas was needed to increase existing data on historic and archeological sites on Mauna Loa to allow park managers to better plan for future projects. The reconnaissance report includes a project introduction; background sections including physical descriptions, cultural setting overview, and previous archeological studies; fieldwork sections describing methods, results, and feature and site summaries; and a section on conclusions and findings that provide site significance assessments and recommendations. -
Hawaiian Volcanoes: from Source to Surface Site Waikolao, Hawaii 20 - 24 August 2012
AGU Chapman Conference on Hawaiian Volcanoes: From Source to Surface Site Waikolao, Hawaii 20 - 24 August 2012 Conveners Michael Poland, USGS – Hawaiian Volcano Observatory, USA Paul Okubo, USGS – Hawaiian Volcano Observatory, USA Ken Hon, University of Hawai'i at Hilo, USA Program Committee Rebecca Carey, University of California, Berkeley, USA Simon Carn, Michigan Technological University, USA Valerie Cayol, Obs. de Physique du Globe de Clermont-Ferrand Helge Gonnermann, Rice University, USA Scott Rowland, SOEST, University of Hawai'i at M noa, USA Financial Support 2 AGU Chapman Conference on Hawaiian Volcanoes: From Source to Surface Site Meeting At A Glance Sunday, 19 August 2012 1600h – 1700h Welcome Reception 1700h – 1800h Introduction and Highlights of Kilauea’s Recent Eruption Activity Monday, 20 August 2012 0830h – 0900h Welcome and Logistics 0900h – 0945h Introduction – Hawaiian Volcano Observatory: Its First 100 Years of Advancing Volcanism 0945h – 1215h Magma Origin and Ascent I 1030h – 1045h Coffee Break 1215h – 1330h Lunch on Your Own 1330h – 1430h Magma Origin and Ascent II 1430h – 1445h Coffee Break 1445h – 1600h Magma Origin and Ascent Breakout Sessions I, II, III, IV, and V 1600h – 1645h Magma Origin and Ascent III 1645h – 1900h Poster Session Tuesday, 21 August 2012 0900h – 1215h Magma Storage and Island Evolution I 1215h – 1330h Lunch on Your Own 1330h – 1445h Magma Storage and Island Evolution II 1445h – 1600h Magma Storage and Island Evolution Breakout Sessions I, II, III, IV, and V 1600h – 1645h Magma Storage -
CO2, Hothouse and Snowball Earth
CO2, Hothouse and Snowball Earth Gareth E. Roberts Department of Mathematics and Computer Science College of the Holy Cross Worcester, MA, USA Mathematical Models MATH 303 Fall 2018 November 12 and 14, 2018 Roberts (Holy Cross) CO2, Hothouse and Snowball Earth Mathematical Models 1 / 42 Lecture Outline The Greenhouse Effect The Keeling Curve and the Earth’s climate history Consequences of Global Warming The long- and short-term carbon cycles and silicate weathering The Snowball Earth hypothesis Roberts (Holy Cross) CO2, Hothouse and Snowball Earth Mathematical Models 2 / 42 Chapter 1 Historical Overview of Climate Change Science Frequently Asked Question 1.3 What is the Greenhouse Effect? The Sun powers Earth’s climate, radiating energy at very short Earth’s natural greenhouse effect makes life as we know it pos- wavelengths, predominately in the visible or near-visible (e.g., ul- sible. However, human activities, primarily the burning of fossil traviolet) part of the spectrum. Roughly one-third of the solar fuels and clearing of forests, have greatly intensifi ed the natural energy that reaches the top of Earth’s atmosphere is refl ected di- greenhouse effect, causing global warming. rectly back to space. The remaining two-thirds is absorbed by the The two most abundant gases in the atmosphere, nitrogen surface and, to a lesser extent, by the atmosphere. To balance the (comprising 78% of the dry atmosphere) and oxygen (comprising absorbed incoming energy, the Earth must, on average, radiate the 21%), exert almost no greenhouse effect. Instead, the greenhouse same amount of energy back to space. Because the Earth is much effect comes from molecules that are more complex and much less colder than the Sun, it radiates at much longer wavelengths, pri- common. -
Keeling Curve: Result, Interpretation & Global Monitoring
International Journal for Empirical Education and Research Keeling Curve: Result, Interpretation & Global Monitoring Augustyn Ostrowski Faculty of Geography & Geology Jagiellonian University Email: [email protected] (Author of Correspondence) Poland Abstract The Keeling Curve is a graph of the accumulation of carbon dioxide in the Earth's atmosphere based on continuous measurements taken at the Mauna Loa Observatory on the island of Hawaii from 1958 to the present day. The curve is named for the scientist Charles David Keeling, who started the monitoring program and supervised it until his death in 2005. Keywords: Mauna Loa Measurements; Results and Interpretation; Global Monitoring; Ralph Keeling. ISSN Online: 2616-4833 ISSN Print: 2616-4817 35 1. Introduction Keeling's measurements showed the first significant evidence of rapidly increasing carbon dioxide levels in the atmosphere. According to Dr Naomi Oreskes, Professor of History of Science at Harvard University, the Keeling curve is one of the most important scientific works of the 20th century. Many scientists credit the Keeling curve with first bringing the world's attention to the current increase of carbon dioxide in the atmosphere. Prior to the 1950s, measurements of atmospheric carbon dioxide concentrations had been taken on an ad hoc basis at a variety of locations. In 1938, engineer and amateur meteorologist Guy Stewart Callendar compared datasets of atmospheric carbon dioxide from Kew in 1898-1901, which averaged 274 parts per million by volume (ppm), and from the eastern United States in 1936-1938, which averaged 310 ppmv, and concluded that carbon dioxide concentrations were rising due to anthropogenic emissions. However, Callendar's findings were not widely accepted by the scientific community due to the patchy nature of the measurements. -
How I Stave Off Despair As a Climate Scientist So Much Warming, So Many Dire Effects, So Little Action — Dave Reay Reveals YVONNE COOPER/UNIV
WORLD VIEW A personal take on events How I stave off despair as a climate scientist So much warming, so many dire effects, so little action — Dave Reay reveals YVONNE COOPER/UNIV. EDINBURGH COOPER/UNIV. YVONNE how dreams of soggy soil and seaweed keep him going. here’s a curve that is quietly plotting our performance as a behind my eyelids, that’s what helps me sleep. species. This curve is not a commodity price or a technology That, and a personal plot to pull a lifetime’s worth of carbon out of index. It has no agenda or steering committee. It is the Keeling the atmosphere. Tcurve. It is painfully consistent in its trajectory and brutally honest in The dream with which I’ve bored my family to distraction for the its graphical indictment of our society as one that stands ready to stand past 20 years is going truly ‘net zero’: paring down emissions to the by as islands submerge, cities burn and coasts flood. bare minimum, and then managing a chunk of land to try to sequester Established by Charles David Keeling in 1958, the curve records the remainder. how much carbon dioxide is in our atmosphere — fewer than 330 parts Last month, that dream came true. Years of saving, a large dollop per million then, more than 400 today. Each month for the past decade, of luck and an even larger loan made me and my wife the nervous my geeky addiction has been to scan the latest data. To search for some owners of 28 hectares of rough grassland and wild rocky shores in hint that ‘Stabilization Day’ will come: when global emissions and the west of Scotland. -
The Scripps Carbon Dioxide and Oxygen Programs Ralph F. Keeling Scripps Institution of Oceanography [email protected]
The Scripps carbon dioxide and oxygen programs Ralph F. Keeling Scripps Institution of Oceanography [email protected] The Scripps CO2 program was initiated in 1956 by Charles David Keeling and operated under his direction until his passing in 2005. It is currently being continued by Ralph F. Keeling, who also runs the parallel Scripps O2 program. The combined programs are sustaining the longest continuous measurements of changes in atmospheric carbon dioxide concentration, the isotopes of CO2, the atmospheric O2 concentration (as O2/N2 ratio). The program involves flask collections made through cooperative programs with field stations at roughly a dozen stations around the world. The emphasis in the program is in the detection of global and hemispheric trends in these species. The measurements are pertinent to assessing global and hemispheric sources and sinks of CO2 and their changes from year to year. The records are also relevant source/sink estimates on finer spatial scales, and are among the first places to look for evidence of climate feedbacks or other "surprises" in the records. For more than decade, the program has been archiving CO2 from air samples in sealed glass ampoules for retrospective analysis. As an example of an application, these archives has recently allowed the generation of time series of the radiocarbon content of atmospheric CO2, which is relevant for assessing the distribution of carbon between reservoirs and rates of fossil-fuel burning. The O2 program has also expanded recently to include measurements of the Ar concentration (as Ar/N2 ratio). This ratio varies as the ocean warms and cools due to thermally-driven ingassing and outgassing of Ar and N2 by the oceans. -
Computer Models, Climate Data, and the Politics of Global Warming (Cambridge: MIT Press, 2010)
Complete bibliography of all items cited in A Vast Machine: Computer Models, Climate Data, and the Politics of Global Warming (Cambridge: MIT Press, 2010) Paul N. Edwards Caveat: this bibliography contains occasional typographical errors and incomplete citations. Abbate, Janet. Inventing the Internet. Inside Technology. Cambridge: MIT Press, 1999. Abbe, Cleveland. “The Weather Map on the Polar Projection.” Monthly Weather Review 42, no. 1 (1914): 36-38. Abelson, P. H. “Scientific Communication.” Science 209, no. 4452 (1980): 60-62. Aber, John D. “Terrestrial Ecosystems.” In Climate System Modeling, edited by Kevin E. Trenberth, 173- 200. Cambridge: Cambridge University Press, 1992. Ad Hoc Study Group on Carbon Dioxide and Climate. “Carbon Dioxide and Climate: A Scientific Assessment.” (1979): Air Force Data Control Unit. Machine Methods of Weather Statistics. New Orleans: Air Weather Service, 1948. Air Force Data Control Unit. Machine Methods of Weather Statistics. New Orleans: Air Weather Service, 1949. Alaka, MA, and RC Elvander. “Optimum Interpolation From Observations of Mixed Quality.” Monthly Weather Review 100, no. 8 (1972): 612-24. Edwards, A Vast Machine Bibliography 1 Alder, Ken. The Measure of All Things: The Seven-Year Odyssey and Hidden Error That Transformed the World. New York: Free Press, 2002. Allen, MR, and DJ Frame. “Call Off the Quest.” Science 318, no. 5850 (2007): 582. Alvarez, LW, W Alvarez, F Asaro, and HV Michel. “Extraterrestrial Cause for the Cretaceous-Tertiary Extinction.” Science 208, no. 4448 (1980): 1095-108. American Meteorological Society. 2000. Glossary of Meteorology. http://amsglossary.allenpress.com/glossary/ Anderson, E. C., and W. F. Libby. “World-Wide Distribution of Natural Radiocarbon.” Physical Review 81, no. -
A Rational Discussion of Climate Change: the Science, the Evidence, the Response
A RATIONAL DISCUSSION OF CLIMATE CHANGE: THE SCIENCE, THE EVIDENCE, THE RESPONSE HEARING BEFORE THE SUBCOMMITTEE ON ENERGY AND ENVIRONMENT COMMITTEE ON SCIENCE AND TECHNOLOGY HOUSE OF REPRESENTATIVES ONE HUNDRED ELEVENTH CONGRESS SECOND SESSION NOVEMBER 17, 2010 Serial No. 111–114 Printed for the use of the Committee on Science and Technology ( Available via the World Wide Web: http://www.science.house.gov U.S. GOVERNMENT PRINTING OFFICE 62–618PDF WASHINGTON : 2010 For sale by the Superintendent of Documents, U.S. Government Printing Office Internet: bookstore.gpo.gov Phone: toll free (866) 512–1800; DC area (202) 512–1800 Fax: (202) 512–2104 Mail: Stop IDCC, Washington, DC 20402–0001 COMMITTEE ON SCIENCE AND TECHNOLOGY HON. BART GORDON, Tennessee, Chair JERRY F. COSTELLO, Illinois RALPH M. HALL, Texas EDDIE BERNICE JOHNSON, Texas F. JAMES SENSENBRENNER JR., LYNN C. WOOLSEY, California Wisconsin DAVID WU, Oregon LAMAR S. SMITH, Texas BRIAN BAIRD, Washington DANA ROHRABACHER, California BRAD MILLER, North Carolina ROSCOE G. BARTLETT, Maryland DANIEL LIPINSKI, Illinois VERNON J. EHLERS, Michigan GABRIELLE GIFFORDS, Arizona FRANK D. LUCAS, Oklahoma DONNA F. EDWARDS, Maryland JUDY BIGGERT, Illinois MARCIA L. FUDGE, Ohio W. TODD AKIN, Missouri BEN R. LUJA´ N, New Mexico RANDY NEUGEBAUER, Texas PAUL D. TONKO, New York BOB INGLIS, South Carolina STEVEN R. ROTHMAN, New Jersey MICHAEL T. MCCAUL, Texas JIM MATHESON, Utah MARIO DIAZ-BALART, Florida LINCOLN DAVIS, Tennessee BRIAN P. BILBRAY, California BEN CHANDLER, Kentucky ADRIAN SMITH, Nebraska RUSS CARNAHAN, Missouri PAUL C. BROUN, Georgia BARON P. HILL, Indiana PETE OLSON, Texas HARRY E. MITCHELL, Arizona CHARLES A. WILSON, Ohio KATHLEEN DAHLKEMPER, Pennsylvania ALAN GRAYSON, Florida SUZANNE M. -
This Is Nature; This Is Un-Nature: Reading the Keeling Curve
Joshua P. Howe Downloaded from https://academic.oup.com/envhis/article-abstract/20/2/286/528915 by OUP site access user on 24 May 2019 This Is Nature; This Is Un-Nature: Reading the Keeling Curve Data images make odd cultural artifacts. On one hand, scientists pre- sent their data in images as a form of visual communication, intended, like other forms of visual culture, to convey both specific information and larger culturally coded messages. On the other hand, scientists typically hew to methods of measurement and math- ematical analysis intended to ensure that the data they present reflect some objective reality that transcends the cultural. To the extent that the data tell a cultural story, it is supposed to “speak for itself.” Such is the case with the Keeling Curve, the oscillating upward- sloping graph of measured atmospheric carbon dioxide (CO2) that has come to stand as one of the most important and powerful scien- tific symbols of anthropogenic climate change. To a lay reader, it may seem odd to read a simple measure of atmospheric gas through the many-sided prism of modern American life the way you might read a historical photograph or piece of art. And yet the Keeling Curve func- tions as much as a symbol in our collective cultural understanding of climate change as it does a representation of data about CO2. The Keeling Curve faithfully represents something quite real—the accumulation of CO2 in the atmosphere since 1958, expressed in parts per million (ppm)—but it is also a constructed image ripe for reading, similar to a painting, a photograph, a landscape, or a written document.