5/20/12NASA Surface meteorology and Solar Energy - Available Tables SSE Homepage Find A Different Location Accuracy Methodology Parameters (Units & Definition) NASA Surface meteorology and Solar Energy - Available Tables Latitude 29.017 / Longitude 77.383 was chosen. Elevation: 506 meters Geometry Information Northern boundary 30 Western boundary 77 Center Latitude 29.5 Longitude 77.5 Southern boundary 29 Eastern boundary 78 taken from the NASA GEOS-4 model elevation Parameters for Sizing and Pointing of Solar Panels and for Solar Thermal Applications: Monthly Averaged Insolation Incident On A Horizontal Surface (kWh/m2 /day) Lat 29.017 Lon 77.383 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Average 5.29 22-year Average 3.68 4.55 5.80 6.84 7.31 6.71 5.57 4.93 5.25 5.05 4.26 3.54 Minimum And Maximum Difference From Monthly Averaged Insolation (%) Lat 29.017 Lon 77.383 Minimum Maximum Jan -19 12 Feb -16 16 Mar -15 16 Apr -8 13 May -8 8 Jun -13 11 Jul -19 25 Aug -24 25 Sep -15 12 Oct -13 11 Nov -10 8 Dec -22 12 Parameter Definition Monthly Averaged Diffuse Radiation Incident On A Horizontal Surface (kWh/m2 /day) Lat 29.017 Lon 77.383 22-year Average Minimum Maximum Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Average 1.55 1.25 1.73 0.60 0.51 0.94 1.15 1.38 1.63 1.89 2.26 2.43 2.27 1.78 1.17 0.83 0.81 0.73 0.79 0.89 1.16 1.60 2.01 2.09 2.03 1.57 0.90 0.64 0.60 1.14 1.39 1.68 1.85 2.11 2.46 2.47 2.23 1.94 1.42 1.02 1.06 22-year Average K 0.60 0.62 0.64 0.66 0.65 0.58 0.49 0.46 0.56 0.64 0.66 0.62 Minimum K 0.49 0.52 0.55 0.61 0.60 0.51 0.40 0.35 eosweb.larc.nasa.gov/cgi-bin/sse/grid.cgi?&num=258120&lat=29.017&submit=Submit&hgt=100&ve… 0.47 0.56 0.60 0.49 1/2 5/20/12 NASA Surface meteorology and Solar Energy - Available Tables Minimum K Maximum K 0.49 0.52 0.55 0.61 0.60 0.51 0.40 0.35 0.47 0.56 0.60 0.49 0.68 0.72 0.75 0.75 0.71 0.65 0.61 0.58 0.62 0.71 0.72 0.70 0.51 0.68 Diffuse radiation, direct normal radiation and tilted surface radiation are not NOTE: calculated when the clearness index (K) is below 0.3 or above 0.8. Parameter Definition Monthly Averaged Direct Normal Radiation (kWh/m2 /day) Lat 29.017 Lon 77.383 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Average 6.33 22-year Average 5.91 6.40 7.30 7.87 7.92 6.46 4.56 3.95 5.49 6.95 7.12 6.14 Minimum And Maximum Difference From Monthly Averaged Direct Normal Radiation (%) Lat 29.017 Lon 77.383 Minimum Maximum Jan -18 9 Feb -11 14 Mar -8 14 Apr -1 13 May -5 7 Jun -13 11 Jul -22 42 Aug -35 46 Sep -17 13 Oct -9 7 Nov -7 4 Dec -20 7 Diffuse radiation, direct normal radiation and tilted surface radiation are not NOTE: calculated when the clearness index (K) is below 0.3 or above 0.8. Parameter Definition Back to SSE Data Set Home Page Responsible NASA Official: John M. Kusterer Site Administration/Help: NASA Langley ASDC User Services ([email protected]) [Privacy Policy and Important Notices] Document generated on Sun May 20 10:17:01 EDT 2012 eosweb.larc.nasa.gov/cgi-bin/sse/grid.cgi?&num=258120&lat=29.017&submit=Submit&hgt=100&ve… 2/2
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