2004 ARM Science Team Meeting, March 22-26, Albuquerque, New Mexico THE 2004 NORTH SLOPE OF ALASKA...

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)


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


MWRMWRP

NSA04 INSTRUMENTS

GSR


Hot Calibration TargetCold Calibration Target

GSR Radiometer ScanheadTrolley for GSR Scanhead

Fans

RadiometerControl Boxes

PowerControl Box


GSR IN OPERATION (1/3)


Dual-sonde launch: Vaisala RS90 and Chilled mirror (2004031101 UTC)


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


TIME SERIES OF GSR 50-60 GHz RADIOMETER CHANNELS

50.351.752.653.353.854.454.955.556.056.256.3

2 MIN


TIME SERIES OF GSR 183 GHz RADIOMETER CHANNELS

183±15

183±12

183±7

183±5

183±3

183±1

183±0.5


TIME SERIES OF GSR 380 GHz RADIOMETER CHANNELS

380±17

380±9

380±4


NSA04 Kick-off

- MWRP

- MWR

• DPLX SONDES• GW SONDES

TIME SERIES OF MWR, MWRP and PROCESSED RADIOSONDES


ICI IMAGE OF BROKEN CLOUDS


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


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?)


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

2004 ARM Science Team Meeting, March 22-26, Albuquerque, New Mexico THE 2004 NORTH SLOPE OF ALASKA...

Documents

Transcript of 2004 ARM Science Team Meeting, March 22-26, Albuquerque, New Mexico THE 2004 NORTH SLOPE OF ALASKA...