CERES/ARM Validation Experiment (CAVE)

This page accesses surface observation data and creates a summary table of available variables for a given site and will plot a pre-selected variable if desired.

Plot Pages Footprint Validation Monthly Mean Time Series Surface Data Cloud Fraction FSW Plots Statistics Access data base

File & Date Selection Surface Site arm_E13 arm_C01arm_BEFarm_E02arm_E16arm_E18arm_MANarm_NAU surfrad_BONsurfrad_DRAsurfrad_FPKsurfrad_GWNsurfrad_PSUsurfrad_TBLsurfrad_SXF gmd_BARgmd_BERgmd_BOUgmd_KWAgmd_MLOgmd_SAMgmd_SPLgmd_ALTgmd_THD bsrn_ASPbsrn_DAAbsrn_FLObsrn_GVNbsrn_ILObsrn_LAUbsrn_LIN bsrn_NYAbsrn_PAYbsrn_SBObsrn_SYObsrn_TAMbsrn_TATbsrn_SSV larc_COV whoi_PCNwhoi_PCSwhoi_NT1whoi_NT2whoi_ST1whoi_ST2 arm_E01arm_E03arm_E04arm_E05arm_E06 arm_E07arm_E08arm_E09arm_E10arm_E11 arm_E12arm_E15arm_E20arm_E22arm_E24arm_NIAarm_PYE indoex_KAS click for list of sites Date Year 199819992000 2001 200220032004 200520062007 20082009 Month 010203040506 07 0809101112 Day 010203040506070809 10111213141516171819 202122232425262728293031 Variable to plot None 01 Cos(SZA) 02 LW Down 03 LW Up 04 SW Global Down 05 SW Global Up 06 SW Dir Normal 07 SW Diffuse 08 SW Total 09 Sfc Temp 10 Sfc Pres 11 Sfc Wind Sp 12 Sfc Wind Dir 13 Sfc Rel Humid 14 Cloud Fraction 15 Aeronet AOD 16 Aeronet AOD 17 Aeronet AOD 18 Aeronet AOD 19 Aeronet AOD 20 Aeronet AOD 21 Aeronet AOD 22 Aeronet PW 23 Ancillary 1 24 Ancillary 2 25 Ancillary 3 26 Ancillary 4 27 Ancillary 5 28 Ancillary 6 29 Ancillary 7 30 Ancillary 8 31 Ancillary 9 32 Ancillary 10 33 Ancillary 11 34 Ancillary 12 35 Ancillary 13 Example Output

Accuracy

Quantity at Surface	Capability
Direct solar irradiance	2 Wm-2
Diffuse solar radiation	5 Wm-2
Global (SW) radiation	5 Wm-2
Downwelling longwave radiation	10 Wm-2
Ohmura, A., E. Dutton, B. Forgan, C. Frohlich, H. Gilgen, H. Hegne, A. Heimo, G. Konig-Langlo, B. McArthur, G. Muller, R. Philipona, C. Whitlock, K. Dehne, and M. Wild, 1998: Baseline Surface Radiation Network (BSRN/WCRP): New precision radiometery for climate change research. Bull. Amer. Meteor. Soc. 79 No. 10, 2115-2136.

Accuracies specified by BSRN in the Longwave region are seen as overly pessimistic as pointed out in Charlock et al. 2001. This is also found in the statistics tables above in model to observation comparisons.