Transcript Richardson: DOE/ARM Calibration/Validation Instrumentation

DOE ARM Calibration /
Validation Instrumentation
• Data essentially available in real-time
– ARM (Atmospheric Radiation Measurement)
– CART (Cloud And Radiation Testbed)
– SGP (Southern Great Plains)
Central Facility
(Lamont)
Boundary Facilities
ARM Validation Instrumentation At
Central Facility Instrumentation
– Profiling Instrumentation
• RS-90 Vaisala radiosondes
– 3-hourly launches (0230, 0530, 0830 UTC, …)
• Raman LIDAR
– Water vapor mixing ratio (first gate at 100 m agl, 70 m resolution)
– Relative humidity (with AERI temperature profile)
– 8 km at night, 3 km during day, to cloud base, 10 minute temporal
• AERI (Atmospheric Emitted Radiance Interferometer)
– Temperature and moisture
– 3 km or to cloud base, 10 minute temporal
– Passive instrument
• 915 MHz, 50 MHz profiler, and 404 MHz (NOAA) (with
RASS)
ARM Validation Instrumentation
– Integrated / Point observations
• GPS (Integrated PWV)
• Microwave radiometer (IPWV, liquid cloud water)
• In Situ measurements (60 m tower, surface obs)
• MMCR (cloud boundary)
• MPL (cloud base, thin cloud layers, high cirrus)
ARM Boundary Facilities
(Vici, Purcell, Morris , Hillsboro KS)
• Instrumentation
– Supplemental RS-90 Vaisala 3-hourly sondes
– AERI (temperature and moisture to 3 km)
– Microwave Radiometer (IPWV, maybe a
profiling system)
– Vaisala Ceilometer (cloud base)
– Surface meteorological obs
WVIOP 2000
AATS-6
RS-90
JPL MWR
tower
MWR
ITA
Mailbox Vaisala
CSR
DataPlane
CARL
AERIBago
SRL
MPIDIAL
HARLIE
PWV Time Series
5 Dec 2000. Example Comparison
Potential Comparison Methods
• Use CART Raman Lidar to validate aircraft
WV profiles
– Overflights of the Central Facility
– Overpasses coincident with 3-hourly sonde
launches
• Co-locate instruments at Central Facility
– Coordinate through ARM web page
(www.arm.gov)
– UAH mobile integrated profiling system
– Goddard Raman Lidar
ARM Data Access
• Easy data access via ARM web page
– www.arm.gov
– Freely available
• netcdf data files
• Final data sets available within ~one week