1. CAN WE USE CRN OBSERVED LST AS GROUND TRUTH FOR GOES-R VALIDATION?
LAND TEAM GOES-R AWG Annual Meeting. June 14-16, Fort Collins, CO
CAN WE USE CRN OBSERVED LST AS GROUND TRUTH FOR GOES-R VALIDATION?
Konstantin Y. Vinnikov (University of Maryland), Yunyue Yu (NOAA/NESDIS), Mitchell D. Goldberg (NOAA/NESDIS)
Dan Tarpley (Short & Associates), Ming Chen (IMSG), Kevin Gallo (USGS), Chuck N. Long (PNNL)
Statistical assessement based on two year observation at three colocated CRN and SURFRAD stations and GOES-10 LST data
1276 Clear Sky hours
Raw Error in HOURLY SURFRAD LST computed using 2 observations: (15 min+45min)/2.
Mean=0.1 K, σ=0.3 K. Adjusted σ=0.1 K
Raw Differences in HOURLY LST
CRN - SURFRAD
Mean=-1.8 K, σ=1.1 K. Adjusted σ=0.7 K
GOES10 – SURFRAD
Mean=-1.8 K, σ=1.1 K. Adjusted σ=0.9 K
GOES10 - CRN
Mean=-0.1, σ=1.4 K. Adjusted σ=0.9 K
Diurnal/Seasonal cycles in observed LST estimated from observations at SURFRAD, CRN & GOES10
σ=0.1 K
Estimates of
Standard Errors
of Clear Sky LST measurement:
SURFRAD 0.5 K
CRN K
GOES K
Question:
CAN WE USE CRN OBSERVED HOURLY LST TO VALIDATE
GOES-R RETRIEVED CLEAR SKY LST?
Data:
COINSIDED LST OBSERVATIONS AT CRN, SURFRAD & GOES-10 AT LOCATIONS OF THREE SURFRAD STATIONS:
DESERT ROCK, NV
FORT PECK, MT
BONDVILLE, IL
Preliminary Answer:
YES, WE CAN.
σ=0.7 K
σ=0.9 K
σ=0.9 K .
Your Questions should be addressed to:
Communicating author: Konstantin Vinnikov, University of Maryland, Department of Atmospheric and Oceanic Science, College Park, MD
Phone:
Related publications:
Konstantin Y. Vinnikov, Yunyue Yu, M. K. Rama Varma Raja, Dan Tarpley, Mitchell D. Goldberg, 2008: Diurnal-Seasonal and Weather-Related Variations of Land Surface Temperature Observed from Geostationary Satellites. Geophysical Research Letters, 35, doi: /2008GL
Konstantin Y. Vinnikov, Yunue Yu, Mitchell D. Goldberg, Ming Chen, and Dan Tarpley, 2011: Scales of temporal and spatial variability of midlatitude land surface temperature. J. Geophys. Res., 116, doi: /2010JD