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Monday, November 9, 2020 | History

2 edition of Airborne lidar measurements of El Chichon stratospheric aerosols found in the catalog.

Airborne lidar measurements of El Chichon stratospheric aerosols

M. Patrick McCormick

Airborne lidar measurements of El Chichon stratospheric aerosols

October 1982 to November 1982

by M. Patrick McCormick

  • 238 Want to read
  • 28 Currently reading

Published by National Aeronautics and Space Administration, Scientific and Technical Information Branch, For sale by the National Technical Information Service in [Washington, D.C.], Springfield, Va .
Written in English

    Places:
  • Chichon (Mexico)
    • Subjects:
    • Stratospheric aerosols -- Charts, diagrams, etc.,
    • Weather -- Effect of volcanic eruptions on -- Charts, diagrams, etc.,
    • Optical radar -- Charts, diagrams, etc.,
    • Chichon (Mexico) -- Climate -- Charts, diagrams, etc.

    • Edition Notes

      Bibliography: p. 115.

      StatementM. Patrick McCormick, M.T. Osborn.
      GenreCharts, diagrams, etc.
      SeriesNASA reference publication ;, 1136
      ContributionsOsborn, M. T., United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.
      Classifications
      LC ClassificationsQC882 .M42 1985
      The Physical Object
      Paginationv, 115 p. :
      Number of Pages115
      ID Numbers
      Open LibraryOL2664430M
      LC Control Number85601890

        The CALIPSO model S a value of 40 sr at nm for desert dust is comparable to the S a measurements near the green channel by Voss et al. () using a micropulse lidar (41 ± 8 sr) for African dust, measurements of Liu et al. () of Asian dusts (42–55 sr) found using an HSRL and a combined Raman elastic-backscatter lidar by: Lidar observations of Nabro volcano aerosol layers in the stratosphere D. Shin et al. Title Page Abstract Introduction Conclusions References Tables Figures J I J I Back Close Full Screen / Esc Printer-friendly Version Interactive Discussion | Abstract We report on the first Raman lidar measurements of stratospheric aerosol layers in. 0 km is the lidar return off the ocean surface. [12] The GLAS lidar image offers unique information on the relationship between the aerosols and the clouds. The magnitude of the of the aerosol lidar signal is presumed to Figure 1. Cloud/aerosol discrimination. The solid line shows b0(r), dashed line shows the discriminator threshold,File Size: KB. Characterization of tropospheric aerosols with polarization lidar Sharon P. Burton*, Johnathan Hair, Richard Ferrare, Chris Hostetler, Mark Vaughan, and Ali Omar NASA Langley Research Center, Hampton, VA , USA *Presenting author (@) The impacts of tropospheric aerosols on climate and air quality depend on the amount.


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Airborne lidar measurements of El Chichon stratospheric aerosols by M. Patrick McCormick Download PDF EPUB FB2

Get this from a library. Airborne lidar measurements of El Chichon stratospheric aerosols: July [M Patrick McCormick; M T Osborn]. Airborne lidar measurements of El Chichon stratospheric aerosols, May Washington, D.C.: National Aeronautics and Space Administration, Scientific and Technical Information Branch ; Springfield, Va.: For sale by National Technical Information Service, [] (OCoLC) Material Type: Government publication, National government.

Open Library is an initiative of the Internet Archive, a (c)(3) non-profit, building a digital library of Internet sites and other cultural artifacts in digital projects include the Wayback Machine, and   The Aerosol Lidar is a piggy-back instrument on AROTEL lidar fielded by John Burris and Tom McGee of NASA Goddard Space Flight Center.

The light source for the aerosol measurements is a Continuum Nd:YAG laser operating at 50 shots per second. The laser transmits approximately mJ at nm, mJ at nm, and mJ at nm. These eruptions yielded an estimated 20 megatons of SO2, which is three times the amount produced by El Chichon.

Lidar measurements taken by the inch lidar system at Langley Research Center. Dual-wavelength aerosol lidar backscatter measurements at Mauna Loa Observatory are used to monitor and characterize the km stratospheric aerosol layer.

An example, showing integrated backscatter measured at Garmisch–Partenkirchen (° N, 11° E) is shown in Figure 2, and clearly demonstrates the massive perturbations to stratospheric aerosol caused by the eruptions of El Chichon () and Mt Pinatubo (), as well as a string of minor perturbations from smaller eruptions.

Although the. LIDAR BACKSCATTERING MEASUREMENTS OF Airborne lidar measurements of El Chichon stratospheric aerosols book STRATOSPHERIC AEROSOLS Ellis E. Remsberg, G. Burton Northam, and Carolyn F. Butler February Page 1, line 15 of Summary: Change 5 percent, to 3 percent. Page 1, line 17 of Summary: Change 63 percent, to 42 percent, P line 3 of last paragraph: Change fa = 5 x iCited by: 2.

stratospheric aerosols • Topics include: – Aerosol precursors – Measurements & climatologies • ‘Filled’ data set for present – “Trends” – Modeling Reconstruction of NH aerosol extinction at nm during El Chichon from NASA LaRC inch lidar system.

Dual‐wavelength aerosol lidar backscatter measurements at Mauna Loa Observatory are used to monitor and characterize the 15–30 km stratospheric aerosol layer.

The decay of aerosol loading following the El Chichón, Mexico (17°N) and Pinatubo, Philippine Islands (15°N) volcanic eruptions of andrespectively, depends on the phase Cited by: Airborne lidar measurements of aerosols, mixed layer heights, and ozone during the PEPE/NEROS summer field experiment (SuDoc NAS ) [NASA] on *FREE* shipping on qualifying : NASA.

Lidar and in situ measurements of the optical properties of the aerosols locate the layers at the same altitudes. The extinction coefficient is very low in these clean atmospheres, leading to optical thicknesses at nm ( nm) of ± ( ± ) and ± ( ± ) on 23 June and on the night of 6–7 July Cited by: lidar measurements of stratospheric aerosols over menlo park, california; 1, f t october march - n wo 0 u m prepared by o o h philip b.

russell, william viezee, and richard d. hake-o stanford research institute tt q 0 menlo park, california n m tws june o0. The optical thickness of stratospheric aerosols also decreased during the corresponding period, from to for the nm wavelength. Keywords Aerosol Optical Depth Optical Thickness Aerosol Optical Thickness Stratospheric Aerosol Lidar SignalCited by: 5 title: airborne lidar measurements of el chichon stratospheric aerosols january to february main ent: mccormick mp class no: 46 mcc accn no.: r55 6 title: airborne lidar measurements of el chichon stratospheric aerosols july   NASA Official: John M.

Kusterer; Site Curator: NASA Langley ASDC User Services - Contact Us Last Modified Date: Novem Observations after the eruptions of Agung, El Chichon, and Mount Pinatubo have shown that the lower stratosphere (16–20 km) was warmed by 1–2 K due to the presence of volcanic aerosols.

This topic is discussed further in the article Climate and Climate Change:. Characterization of aerosols using airborne lidar and MODIS Richard Ferrare (1), Edward Browell (1), Syed Ismail (1), Yoram Kaufman (2), Mian Chin (2), • Airborne Lidar Aerosol Measurements • Lidar + MODIS retrievals • GOCART model evaluation • Summary and Future.

Airborne High Spectral Resolution Lidar Measurements of Aerosol Distributions and Properties during the NASA DISCOVER-AQ and airborne in situ measurements (Sawamura et al., ACPD, ) Stratospheric Aerosols Optically thin Cirrus Clouds Diffuse background aerosols - likely.

• Aerosol extinction – in general agreement with lidar profiles, but details differ depending on campaign • Work in progress – using lidar measurements to identify & group aerosol types • Use cluster analysis techniques to identify and group aerosols • Some correspondence between TRACE-P clusters and GOCART aerosol types • FutureFile Size: 3MB.

Airborne lidar currently offers the best means of observing the synoptic scale variability in the distribution of aerosols within the lower stratosphere.

In this paper, some basic considerations regarding the processing and interpretation of this type of data are discussed. Results from the April flight between Madrid and Washington, D.C. are by: 9. Corresponding author address: Mark Vaughan, Mail StopNASA Langley Research Center, Hampton, VA Email: [email protected] This article included in the CALIPSO special by: SPIE Digital Library Proceedings.

15 September Combined lidar measurements of cloud properties, stratospheric, aerosols, and ozone profiles Cited by: 1. Comparative analysis of measurements of stratospheric aerosol by lidar and aerosol sonde above Ny-A˚lesund in the winter of [Comparative analysis of lidar and OPC observations] Koichi Shiraishi a,*, Masahiko Hayashi a, Motowo Fujiwara a, Takashi Shibata b, Masaharu Watanabe c, Yasunobu Iwasaka d, Roland Neuber e, Takashi Yamanouchi f.

7 title: airborne lidar measurements of el chichon stratospheric aerosols january to february main ent: mccormick mp class no: 46 mcc accn no.: r55 8 title: airborne lidar measurements of el chichon. [1] This study examines seasonal variations of the vertical distribution of aerosols through a statistical analysis of the Cloud‐Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) lidar observations from June to November A data‐screening scheme is developed to attain good quality data in cloud‐free conditions, and the polarization.

AEROSOLS AND CLOUDS: IMPROVED KNOWLEDGE THROUGH SPACE BORNE LIDAR MEASUREMENTS Dulce Lajas1, Paul Ingmann1, Tobias Wehr1 and Albert Ansmann 2 1European Space Agency, Keplerlaan 1, AG Noordwijk, The Netherlands 2 Leibniz Institute for Tropospheric Research, Permoserstra Leipzig, Germany.

Space-based measurements of stratospheric aerosols Larry W. Thomason NASA Langley Research Center o El Chichon nm a Ruiz O Kelut + Hudson El Chichon and Pinatubo Lidar data sets SME SAD Allitude: km 18 L. 6/17/ Thomason.

The CALIPSO mission: Spaceborne lidar for observation of aerosols and clouds David M. Winker a, Jacques Pelon b, M Patrick McCormick c aNASA Langley Research Center, MS/, Hampton, VA bUniversite Pierre et Marie Curie, 4 Place Jussieu, Paris, France cHampton University, Hampton, VA ABSTRACT Current uncertainties in the effects of aerosols and clouds on the.

LIDAR observations of lower stratospheric aerosols over South Africa linked to large scale transport across the southern subtropical barrier Hassan Bencherif, Thierry Portafaix, Jean-Luc Baray, B eatrice Morel, Serge Baldy, Jean Leveau, Alain Hauchecorne, P.

Keckhut, Ashokabose Moorgawa, Max M. Michaelis, et al. To cite this version. › Log in to Airborne Science | › Create New Account. Log in to Airborne Science. Username * Password * (), Evaluation of daytime measurements of aerosols and water vapor made by an operational Raman lidar over the Southern Great Plains, J.

Geophys. Res., We apply a two-way transmittance constraint to nighttime CALIOP (Cloud-Aerosol Lidar with Orthogonal Polarization) observations of volcanic aerosol layers to retrieve estimates of the particulate lidar ratio (Sp) at nm.

This technique is applied to three volcanic eruption case studies that were found to have injected aerosols directly into the by: We observed the stratospheric aerosol layer at 34° north latitude with a photon-counting nm lidar on three occasions in During all of the observations, we also operated a nearby nm micropulse lidar and acquired National Weather Service upper air data.

We analyzed the lidar data to find scattering ratio profiles and the integrated aerosol backscatter at both wavelengths. Compared with traditional remote sensing technologies, airborne Lidar data can provide researchers with additional 3D positional information, which is a key factor for advanced urban research, and particularly that of urban landscape ecology.

Therefore, the need for applying Lidar data to a variety of disciplines is rapidly growing. AIRBORNE HIGH SPECTRAL RESOLUTION LIDAR AEROSOL MEASUREMENTS DURING CALNEX AND CARES Chris Hostetler, Richard Ferrare, John Hair, Anthony (Tony) Cook, David Harper, Sharon Burton, Michael Obland, distribution of aerosols and to provide the vertical context for the airborne in situ measurements acquired from these other aircraft.

The 3-D PDFs were developed from the Shuttle-borne Lidar In-space Technology Experiment (LITE) and airborne lidar measurements (Liu et al., ). A very dense dust layer near or over a source region is a typical scene that can be misclassified as cloud by the Version 2 CAD algorithm (V2-CAD) because the dust layer characteristics are in a region.

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF. Visit to get more information about this book, to buy it in print, or to download it as a free PDF. Below is the uncorrected machine-read text.

Lidar and Balloon-Borne Cascade Impactor Measurements of Aerosols: A Case Study J. Reagan, M. Apte, T. Bruhns* Department of Electrzcal and Computer Engzneerzng, Unzverszty of Anzona, Tucson, AZ and 0. Youngbluth NASA Langley Research Center, Hampton, VA Aerosol size distributions, elemental components, com.

HSRL measurements coincident with airborne in situ aerosol scattering and absorption measurements from two different instrument suites on the C and G-1 aircraft, airborne aerosol optical depth (AOD) and extinction measurements from an airborne tracking sunphotometer on the J aircraft, and AOD from a network of ground based Aerosol.

The ability of stratospheric aerosols to create a global dimming effect has made them a possible candidate for use in solar radiation management climate engineering projects to limit the effect and impact of climate change due to rising levels of greenhouse gases.

Delivery of precursor sulfide gases such as sulfuric acid, hydrogen sulfide (H 2 S) or sulfur dioxide (SO. DIAL7 technique for measuring the stratospheric ozone will be developed and implemented in the near future at JFJ.

Future challenges include also JFJ-LIDAR remote control operation and the ability of real time obtained atmospheric calibrated profiles (i.e. optical properties of aerosols-cirrus-contrails, water vapor, temperature and ozone."Comparative analysis of measurements of stratospheric aerosol by lidar and aerosol sonde above Ny-Alesund in the winter of [Comparative analysis of lidar and OPC observations] ", Koichi Shiraishi, Masahiko Hayashi, Motowo Fujiwara, Takashi Shibata, Masaharu Watanabe, Yasunobu Iwasaka, Roland Neuber, Takashi Yamanouchi, Polar Science, 5.

Particles in Upper Atmosphere Slow Down Global Warming. A study published July 21 in Science and led by Susan Solomon, of the National Oceanographic and Atmospheric Administration (NOAA), presents new evidence that particles located in the upper layer of the atmosphere -- also called the stratosphere -- have played a significant role in cooling the .