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2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
THE 2004 NORTH SLOPE OF ALASKA ARCTIC WINTER RADIOMETRIC EXPERIMENT
Ed R. Westwater (CIRES-CU/NOAA-ETL)Marian Klein (CIRES-CU/NOAA-ETL)Albin Gasiewski (NOAA-ETL)Vladimir Leuski (CIRES-CU/NOAA-ETL)Joseph Shaw (Montana State University)Jim Liljegren (ANL)Barry Lesht (ANL)Vinia Mattioli (University of Perugia)Domenico Cimini (CETEMPS-University of Aquila)Sally Dowlatshahi (Science and Technology Corp.)
ARM ParticipantsBernie Zak (Sandia NL) Johannes Verlinde (Penn State/NSA Chief Scientist)
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
Table 1. Instruments deployed during the Millimeter Wave Radiometric Arctic Winter Experiment’2004 (March 9 to April 9, 2004)
Platform Parameters Derived Frequencies (GHz)
ARM MWR PWV, ICL 23.8, 31.4 GHz
Ground-based Scanning Radiometer (GSR)PWV 183.31 ± ( 0.5, ± 1, ± 3, ± 5, ± 7, ± 12, ± 15 GH)
Ground-based Scanning Radiometer (GSR)T, ICL 50.3, 51.76, 52.625,53.29,53.845,54.4, 54.95, 55.52,56.025,56.215,56.325 GHz
Microwave Profiler T, PWV, ICL 22.235, 23.035 ,23.835, 26.235, 30.000, 51.250, 52.280, 53.850, 54.940, 56.660, 57.290, 58.800 GHz
Ground-based Scanning Radiometer (GSR)ICL 90 GHz (dual-polarization)
Ground-based Scanning Radiometer (GSR) PWV, ICL 340 GHz (dual-polarization)
Ground-based Scanning Radiometer (GSR) PWV, ICL 380.2 ±4, ±9, ± 17 GHz
Infrared Cloud Imager (ICI) Spatial cloud coverage 8-14 microns
Ground-based Scanning Radiometer (GSR) Cloud presence 10 microns
GPS PWV 4-times a day Vaisala RS90 Radiosondes T and ρ profilec
On demand: Chilled Mirror “Snow white” Radiosondes
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
MWRMWRP
NSA04 INSTRUMENTS
GSR
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
Hot Calibration TargetCold Calibration Target
GSR Radiometer ScanheadTrolley for GSR Scanhead
Fans
RadiometerControl Boxes
PowerControl Box
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
GSR IN OPERATION (1/3)
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
GSR IN OPERATION (2/3)
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
GSR IN OPERATION (3/3)
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
Dual-sonde launch: Vaisala RS90 and Chilled mirror (2004031101 UTC)
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
TIME SERIES OF CALIBRATION AND SKY OBSERVATIONS OF THE GSR
Hot BBCold BBAir mass 3.5Air mass 3.0Air mass 2.5Air mass 2.0Air mass 1.5Air mass 1.0
52 GHz Tb
Motion trigger
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
TIME SERIES OF GSR 50-60 GHz RADIOMETER CHANNELS
50.351.752.653.353.854.454.955.556.056.256.3
2 MIN
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
TIME SERIES OF GSR 183 GHz RADIOMETER CHANNELS
183±15
183±12
183±7
183±5
183±3
183±1
183±0.5
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
TIME SERIES OF GSR 380 GHz RADIOMETER CHANNELS
380±17
380±9
380±4
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
NSA04 Kick-off
- MWRP
- MWR
• DPLX SONDES• GW SONDES
TIME SERIES OF MWR, MWRP and PROCESSED RADIOSONDES
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
ICI IMAGE OF BROKEN CLOUDS
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
09/03 10/03 11/03 12/03 13/03 14/030
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
PW
V (c
m)
PWV FROM MWR, GPS and RADIOSONDES
Time (UTC)
MWRDuplex sondeGW sondeGPS
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
COMPOSITE IMAGE OF CLOUD RADAR, MICROPULSE LIDAR AND MWR OBSERVATIONS FOR THE FIRST SIX DAYS OF THE IOP. CLEAR SKY, LOW CLOUD, MID-LEVEL CLOUDS, MIXED-PHASED CLOUDS WERE OBSERVED.
Boundary Level CloudWith Liquid Layer at Top and ice precipitation
Mid-Level Ice CloudWell Developed Boundary Layer Cloud with Liquid, Ice and Precipitation
DOE/ARM Cloud Radar
Aerosol LayersAerosol Layers
DOE/ARM Microwave Radiometer
CirrusDOE/ARM micropulse LIDAR Aerosol Layers Near Surface Liquid
(Lead Plume?)
2004 ARM Science Team Meeting,March 22-26, Albuquerque, New Mexico
THE 2004 NORTH SLOPE OF ALASKA ARCTIC WINTER RADIOMETRIC EXPERIMENT:
STATUS AS OF MARCH 19, 2004
GSR HAS BEEN OPERATING CONTINUOUSLY SINCE MARCH 9, 2004: DATA ARE OF HIGH QUALITY
RADIOSONDES: 4-TIMES A DAY RS-90 AT ARM DUPLEX 1-TIME A DAY RS-90 AT CART SITE 2 SYNOPTIC NWS SONDES ARE BEING LAUNCHED DAILY5 OF 10 CHILLED MIRROR HAVE BEEN LAUNCHED
MWR AND MW-PROFILER ARE OPERATING: BOTH PWV AND TEMPERATURE RETRIEVALS ARE ENCOURAGING
THE INFRARED CLOUD IMAGER IS PRODUCING HIGH RESOLUTION IMAGES OF THE SKY EVERY 2 MINUTES