The Ground-Based Millimeter Wave R adiometer MIRA2
description
Transcript of The Ground-Based Millimeter Wave R adiometer MIRA2
The Ground-Based Millimeter Wave Radiometer MIRA2
The Ground-Based Millimeter Wave Radiometer MIRA2
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
• instrument description
• campaigns, validation
• the Mérida Atmospheric Research Station (MARS)
• instrument description
• campaigns, validation
• the Mérida Atmospheric Research Station (MARS)
Gerhard Kopp, Jochen Groß, Gerd Hochschild, and Rüdiger Lehm
Institute of Meteorology and Climate ResearchForschungszentrum und Universität Karlsruhe, Germany
http://www.fzk.de/imk/asf/mira
Description of MIRA2Description of MIRA2System CharacteristicsIF: 2,1 GHz +/- 500 MHzReceiver Noise Temperature (SSB): 750 KMixer: Whisker contacted Shottky Diode MixerPhysical Mixer Temperature: 30 K
Quasioptics Beam Waist Radius (w0): 10 mmApertures: 2·w0
Diplexer: Fabry-PérotSingle Sideband Filter: Martin Pupplett
Acousto Optical Spectrometer (AOS) Number of Channels: 2048Bandwidth: 1 GHzFrequency Resolution: 1.2 MHz
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
http://www.fzk.de/imk/asf/mira
Former CampaignsFormer Campaigns• February – April 1996: Kiruna (67.84°N, 20.41°E, 425 m ASL, Sweden)
• March/April 1997: Ny-Ålesund (78.9°N, 11.9°E, 9 m ASL, Swalbard)
• January – April 1998: Kiruna (Sweden)
• February – March 1999: Kiruna (Sweden)
• Nov. 1999 - March 2000: Kiruna (Sweden, THESEO 2000)
• Dec. 2000 - March 2001: Kiruna (Sweden)
• February - July 2003: Zugspitze (47.4°N, 11°E, 2650 m ASL, Germany)
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
http://www.fzk.de/imk/asf/mira
Comparison of Ozone Profiles as Measured by MIRA2 at Kiruna in Winter 2000 with Sonde Measurements
Comparison of Ozone Profiles as Measured by MIRA2 at Kiruna in Winter 2000 with Sonde Measurements
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• Nine coincident measurements between 22 January and 17 March 2000
• Sonde profiles smoothed to MIRA resolution
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
IRFInstitutet för rymdfysik
Swedish Institute of Space Physics
Sonde profiles courtesy of Ola Widell, SSC Esrange, Kiruna
Ozone of 10 March 2003 over the Zugspitzeas measured by SCIAMACHY and MIRA
Ozone of 10 March 2003 over the Zugspitzeas measured by SCIAMACHY and MIRA
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
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SCIAMACHY profiles courtesy of Ch. v. Savigny, IUP, University of Bremen
Comparison of ClO Column abundances as measured by FTIR and MIRA2 at Kiruna in 2000
Comparison of ClO Column abundances as measured by FTIR and MIRA2 at Kiruna in 2000
IRFInstitutet för rymdfysik
Swedish Institute of Space PhysicsForschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
FTIR columns courtesy of Th. Blumenstock, IMK, Forschungszentrum Karlsruhe
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Mérida Atmospheric Research Station (MARS) Mérida Atmospheric Research Station (MARS)
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
8°N, 71°W, 4765 m asl
http://www.fzk.de/imk/asf/mira
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Situation in April 2001Situation in April 2001
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
http://www.fzk.de/imk/asf/mira
Situation 28/03/2004Situation 28/03/2004
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
http://www.fzk.de/imk/asf/mira
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Station facilities provided by the Forschungszentrum Karlsruhe
Station facilities provided by the Forschungszentrum Karlsruhe
• New mains power connection
• Mains at 220 V• WLAN connection• UPS• Improved insulation
and heating• Webcam
http://www.fzk.de/imk/asf/mira
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Northern front of the MARS buildingNorthern front of the MARS building
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
The Webcam on Pico EspejoThe Webcam on Pico Espejo
http://www.fzk.de/imk/asf/mira
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
• Ultrasonic Wind Obs.• Speed and direction• Precipitation• Air temperature• Air pressure• Global Positioning
System for precipitable water vapor columns
Meteorological stationMeteorological station
http://www.fzk.de/imk/asf/mira
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
MIRA2 in the MARS buildingMIRA2 in the MARS building
http://www.fzk.de/imk/asf/mira
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Tropospheric Transmission between 31 March and 28 May 2004 over Pico Espejo
Tropospheric Transmission between 31 March and 28 May 2004 over Pico Espejo
http://www.fzk.de/imk/asf/mira
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Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Tropospheric Transmission on17 April 2004 over Pico EspejoTropospheric Transmission on17 April 2004 over Pico Espejo
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http://www.fzk.de/imk/asf/mira
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Ozone Measurement of 28 May 2004 at MARSOzone Measurement of 28 May 2004 at MARS
http://www.fzk.de/imk/asf/mira
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Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Ozone Measurement of 28 May 2004 at MARSOzone Measurement of 28 May 2004 at MARS
http://www.fzk.de/imk/asf/mira
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Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
The Water vapor Radiometer for Atmospheric Measurements (WaRAM, 22GHz, IUP, University of Bremen) in the MARS building
The Water vapor Radiometer for Atmospheric Measurements (WaRAM, 22GHz, IUP, University of Bremen) in the MARS building
http://www.ram.uni-bremen.de/
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
The DOAS instrument of the IUP, University of Bremen, on Pico Espejo
The DOAS instrument of the IUP, University of Bremen, on Pico Espejo
http://www.doas-bremen.de/
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Forschungszentrum Karlsruhein der Helmholtz-Gemeinschaft
Status of MARSStatus of MARS
• MIRA, WaRAM, DOAS, GPS, and meteorological station are installed
• Some minor problems concerning power supply and network connection
• First results of MIRA look very promising
• MIRA, WaRAM, DOAS, GPS, and meteorological station are installed
• Some minor problems concerning power supply and network connection
• First results of MIRA look very promising