FLASH-B FLASH-B FLuorescent Advanced Stratospheric Hygrometer (for balloon) Instrument design. Observations and comparison. Central Aerological Observatory.

Slides:

Advertisements

Similar presentations

Page 1© Crown copyright 2004 Introduction to upper air measurements with radiosondes and other in situ observing systems [3] John Nash, C. Gaffard,R. Smout.

Advertisements

Upper Tropospheric Humidity: A Comparison of Satellite, Radiosonde, Lidar and Aircraft Measurements Satellite Lidar Aircraft Radiosonde.

Observing Networks and Data Aircraft Humidity Sensor Enters the E-AMDAR Fleet A. Hoff (Deutscher Wetterdienst, Department of Observing Networks and Data)

Hygrometer Intercomparison Campaign at Sodankylä, LAUTLOS Jan 26-Feb 28, 2004 Esko Kyrö 1, Rigel Kivi 1, Juha Karhu 1, Timo Turunen 1, Tuomo Suortti 1,

Homogenization (instrumental correction) of water vapour data from Vaisala radiosondes and older (MARZ, RKZ) used in Polish aerological service Barbara.

Holger Vömel NCAR Science Day 17 April 2015 Exploration of the tropical tropopause region during Strateole-2.

Measured parameters: particle backscatter at 355 and 532 nm, particle extinction at 355 nm, lidar ratio at 355 nm, particle depolarization at 355 nm, atmospheric.

ISSI Working Group on Atmospheric Water Vapor, 11 Feb 2008 Holger Vömel Cooperative Institute for Research in Environmental Sciences University of Colorado.

Radiosonde and Hygrometer humitidy measurements at Sodankylä NDACC-H2O workshop, IAP, University of Bern July 5-7, 2006 Esko Kyrö, Tuomo Suortti, Rigel.

1 / 17 Deutscher Wetterdienst Meteorological Observatory Lindenberg Richard Assmann Observatory The GCOS Reference Upper Air Network Holger Vömel GRUAN.

Lecture 1 Geraint Vaughan. Radiosondes Vaisala RS80 Vaisala RS92 Launching a radiosonde European radiosonde stations (launch 00 and 12 UTC) Data available.

FMI’s special measurement sites - Jokioinen and Sodankylä 1)Basic infrastructure and routine operations 2)Special instrumentation and research Sodankylä.

NDACC Water Vapor Workshop, 5 July 2006 Holger Vömel Cooperative Institute for Research in Environmental Sciences University of Colorado Water vapor observations.

Water vapour intercomparison effort in the frame of the Convective and Orographically-induced Precipitation Study 6th COPS Workshop 27 – 29 February 2008.

CAVIAR flights 9 flights Runs 15,000 to 35,000 feet Spiral descents over Jungfraujoch Dropsondes from high level MetOp underflights FL150 FL350.

SCOUT-O3 BALLOON/SONDES CAMPAIGN NIAMEY 26 JULY- 26 AUGUST 2006 J. P. Pommereau, A. Garnier and SCOUT-O3 team Objectives: Convective transport across tropopause.

RPG Radiometer Physics GmbH WVR Workshop – Wettzell, 9. Oct Performance of water vapor radiometers at 22 and 183 GHz developed at RPG Thomas Rose,

Class 9 - Relative Humidity, Dew, and Frost Points University of Maryland Baltimore County - UMBC Phys650 - Special Topics in Experimental Atmospheric.

October 1 -10, 2014JEM-EUSO Workshop - Toulouse1 Balloon – EUSO Xenon / UV LED Flasher Calibration Evgeny Kuznetsov for UAH / MSFC GLS team University.

1 Review of WMO test results on the accuracy of radiosonde relative humidity sensors John Nash Observing Methods Technology Centre, Development, Met Office.

Problems and measuring errors of radiosonde humidity measurements in the global aerological network and new possibilities of their correction and validation.

FLASH-B FLASH-B FLuorescent Advanced Stratospheric Hygrometer (for balloon and aircraft) Instrument design. Observations and comparison. Central Aerological.

Liam Tallis. Introduction Know the vertical distribution of water vapour in the atmosphere Profile for input into radiative transfer schemes Need to know.

COST 723 WorkshopSofia, May 17-19, 2006 Stefan Buehler Data Exploitation and Modeling for the Upper Troposphere and Lower Stratosphere

GCOS Upper Air Workshop, 22 May 2006 Holger Vömel Cooperative Institute for Research in Environmental Sciences University of Colorado Water vapor observations.

Meteorological Observatory Lindenberg – Richard Assmann Observatory The GCOS Reference Upper Air Network.

Rigel Kivi (1), Holger Vömel (2), Franz Immler (2), Terhi Lehtola (3), Niklaus Kämpfer (4), Corinne Straub (4), Vladimir Yushkov (5), Sergey Khaykin (5),

Inter-Continental Atmospheric Radiosonde Upper-air Sounding System ( ICARUSS) Hal Cole, Mel Shapiro, Vin Lally, Terry Hock, Rolf Langland Surface & Sounding.

Herman G.J. Smit/FZJ-COST723-WG-I Overview Noordwijk March 2004 COST723-WG1- Working Group I: Data and Measurement Techniques Overview Herman G.J.

GEWEX/GlobVapour Workshop, Mar 8-10, 2011, ESRIN, Frascati, Italy WATER VAPOUR RAMAN LIDARS IN THE UTLS: Where Are We Now? or “The JPL-Table Mountain Experience”

G O D D A R D S P A C E F L I G H T C E N T E R Goddard Lidar Observatory for Winds (GLOW) Wind Profiling from the Howard University Beltsville Research.

Water vapour soundings in the upper troposphere Geraint Vaughan University of Wales, Aberystwyth With thanks to: Clare Cambridge, Alan Phillips, Les Dean,

Radiosondes launched at NSA during the WVIOP04 VAISALA RS90 (operated by ETL and ARM) 4 times per day at the ARM duplex (00, 06, 12, 18 UTC) 1 time per.

“Cold trap” dehydration in the TTL estimated from the water vapor MATCH Yoichi Inai, Fumio Hasebe and SOWER sonde team 18, 7, 2006.

Boundary Layer Targeted Observations using the Glidersonde Meteorological Package Part I: Description and Results Daniel B. Weber Frank W. Gallagher III.

Herman G.J. Smit, COST 723, Bern, 6-7 Oct, MOZAIC-Data, Particularly the Use of Water Vapor Data for UTLS-Studies and the Urgent Need for Integrated.

Niamey 23 Aug 2006 Local storms Ex of successful flight (1) Ice geysers and water vapour enhancements in the TTL 1500 m3 plastic balloon, 9 kg payload.

Far infrared sensitivity to water vapour variability near the Tropopause: The importance of airborne measurements Jon Murray Imperial College London Talk:

Gathering Weather Data pg. 79. Surface Data Instruments thermometer- filled with mercury or alcohol; expands when heated barometer- measures air pressure;

Status of AIRFLY fluorescence yield measurements Paolo Privitera Università di Roma Tor Vergata, INFN Prague, May 19, 2006.

Meteorological Observatory Lindenberg Results of the Measurement Strategy of the GCOS Reference Upper Air Network (GRUAN) Holger Vömel, GRUAN.

Meteorological Observatory Lindenberg – Richard Assmann Observatory (2010) GCOS Reference Upper Air Network Holger Vömel Meteorological Observatory Lindenberg.

SRL/Reference sonde P. Di Girolamo, D. Whiteman, B. Demoz, J. Wang, K. Beierle, T. Weckwerth The Reference sonde (C34) consists of a Snow White (SW) chilled-mirror.

AIRS science team meeting Camp Springs, February 2003 Holger Vömel University of Colorado and NOAA/CMDL Upper tropospheric humidity validation measurements.

Deutscher Wetterdienst Lindenberg Meteorological Observatory Richard Assmann Observatory Michael Sommer GRUAN Lead Centre, DWD 2 nd GRUAN Implementation.

IHOP Radiosonde and Dropsonde Data: Highlights and Problems

A new method for first-principles calibration

HAIS Fast-Response O 3 Instrument Basic operating principle:Basic operating principle: –NO chemiluminescence Operating conditions:Operating conditions:

1 / 22 Deutscher Wetterdienst Lindenberg Meteorological Observatory Richard Assmann Observatory What final GRUAN observations may consist of and look like.

Atmospheric Radio Soundings in Argentina - Effects of Air Density Variations - Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Bianca KeilhauerTokyo,

Cryogenic Hygrometer and Filter Radiometers Ali Aknan Stephanie Vay Melody Avery Jim Plant Charles Hudgins.

AIRS science team meeting, Greenbelt, 31 March 2003 Holger Vömel University of Colorado and NOAA/CMDL Cryogenic Frost point Hygrometer (CFH) Measurements.

Page 1© Crown copyright 2004 Results of the RS92 Acceptance Test performed by the Met Office (UK) Richard Smout, John Nash, Mark Smees, Darren Lyth, May.

Instrumented Balloon Launches for ATTREX Dale Hurst, Emrys Hall, Allen Jordan Global Monitoring Division, NOAA Earth System Research Laboratory and CIRES,

EOS-Aura MLS Validation Using Radiosonde Profiles During the WAVES Campaign Cassie Stearns August 10,2006 Dr. Bojan Bojkov and Dr. David Whiteman, Advisors.

A U.S.-Japan Workshop on the Tropical Tropopause Layer

 Both chilled mirror devices lag the fast Ly-α TWC by an amount dependent on mixing ratio and phase of water on mirror. Facility for Airborne Atmospheric.

Driftsonde System Capabilities

G. Mevi1,2, G. Muscari1, P. P. Bertagnolio1, I. Fiorucci1

LATMOS-IPSL, CNRS/UVSQ

Huailin Chen, Bruce Gentry, Tulu Bacha, Belay Demoz, Demetrius Venable

G. Mevi1,2, G. Muscari1, P. P. Bertagnolio1, I. Fiorucci1

Hygrometer Intercomparison Campaign at Sodankylä, LAUTLOS

Water vapour as an indicator of dynamical processes in the extratropical UTLS inferred from balloon observations Sergey Khaykin (1), A. Lukyanov(1), V.Yushkov.

Plans of the GCOS Reference Upper Air Network (GRUAN)

Mobile GPS tracking system using STRATO

ECV definitions Mapping of ECV product with OSCAR variables

Progress with GRUAN observations in comparisons with

GSICS Annual Meeting; MW Sub-Group

Progress with GRUAN observations in comparisons with

Presentation transcript:

FLASH-B FLASH-B FLuorescent Advanced Stratospheric Hygrometer (for balloon) Instrument design. Observations and comparison. Central Aerological Observatory Khaykin S., Yushkov V., Korshunov L., Lukyanov A.

FLASH-B instrument

Source of VUV radiation h =121,6 nm (Lyman-α) Н2ОН2О Н( 2 S) ОН (А 2  + ) ОН (Х 2 П ) PMT Н 2 О + h  ОН (А 2  + ) + Н( 2 S) Fluorescense ОН (А 2  + )  ОН (Х 2 П) + h ’ Quenching ОН (А 2  + ) + N 2, О 2  products I fl – fluorescense intensity J - photodissotiation rate φ= 0,05 - quantum efficiency for excited OH production А=1,26  10 6 s -1 – Einstein coefficient, k q air. = 2,3  sm 3 s -1 – quenching coefficient of the excited OH in air 300 < λ < 330 nm at P > 7 hPa

Photomultiplier FLASH-B optical layout

Electronic block-layout of FLASH-B VUV lamp Lyman-alpha 1 KHz 121,6 nm H 2 O OH* 310nm Interference filter Photomultiplier P, T, U Receiver Modem PC OSC Lamp driver PMT power microcontroller VAISALA RS-80 radiosonde Synchrofilter Synchrodetector Data frame

Compressor FLASH-B Vacuum pump dehumidifierH 2 O bubbler flowcontroller homogenizer Reference dew point mirror hygrometer MBW 373L air out Calibration facility layout flow controller Vacuum chamber Pressure: hPa Temperature: C WVMR: ppmv

Range of water vapour measurements Response time Integration time Measurement precision Total uncertainty Temperature range Height range Required power Weight w/out batteries Interface card Radiosonde ppmv 0.2 sec 4 sec 5.5% 3 ppmv C … C 7… 35 km 9-30V, 10W max 0.5 kg Built-in (T-MAX type) Vaisala RS80-15 A(L) FLASH-B characteristics

Ny-Alesund Sodankylä Lindenberg Measurement sites since winter 2004

Intercomparison of FLASH-B and NOAA/CMDL hygrometers in the stratosphere Descent data only Mean difference in the 11,8 – 25,6 km range is: 2.6 ±3.1 % (1 σ) Large disagreement in the 8,8 – 11,8 km range is caused by the feedback gain change in the NOAA hygrometer

Simultaneous humidity measurements in the troposphere during LAUTLOS 11 February 2004

Simultaneous humidity measurements in the troposphere during LAUTLOS 23 February 2004

FLASH-B & NOAA/CMDL water vapour 17 February 2004 Sodankyla

FLASH-B water vapour observations in the presence of PSCs FLASH-B water vapour Temperature and PSCs thresholds Ny-Alesund (78,9 N, 11,9 E) 6 January 2005

lidarwater vapour FLASH-B water vapour observations in the presence of PSCs Ny-Alesund (78,9 N, 11,9 E) 26 January 2005

Forthcoming campaigns with FLASH-B: SCOUT-AMMA balloon campaign (CNRS) July-August, 2006 West Africa, Niger. up to 10 flights with BKS sonde STRATEOLE campaign (CNES) August 2006 West Africa, Niger up to 2 flights on long-duration SPB balloons Future perspectives: - integration with Swiss Meteolabor radiosonde SRS-34 - Integration with Vaisala RS-92