Climatology Data: Level 2.0 Quality Assured Data AERONET Algorithm: Version 2 Site: GSFC, longitude=-76.839833, latitude=38.992500, elevation=87 m PI: Brent_Holben PI email(s): Brent.N.Holben@nasa.gov Month,1020_avg,1020_std,870_avg,870_std,670_avg,670_std,500_avg,500_std,440_avg,440_std,380_avg,380_std,340_avg,340_std,PW_avg_Lev1.5_(cm),PW_std_Lev1.5_(cm),Alpha_440-870_avg,Alpha_440-870_std,Alpha_380-500_avg,Alpha_380-500_std,Alpha_440-675_avg,Alpha_440-675_std,Alpha_500-870_avg,Alpha_500-870_std,Alpha_340-440_avg,Alpha_340-440_std,Alpha_polar_440-675_avg,Alpha_polar_440-675_std,500-NotInt_avg,500-NotInt_std,412_avg,412_std,532_avg,532_std,555_avg,555_std,1640_avg,1640_std,1020_days,870_days,670_days,500_days,440_days,380_days,340_days,PW_days_Lev1.5,Alpha_440-870_days,Alpha_380-500_days,Alpha_440-675_days,Alpha_500-870_days,Alpha_340-440_days,Alpha_polar_440-675_days,500-NotInt_days,412_days,532_days,555_days,1640_days,1020_Obs,870_Obs,670_Obs,500_Obs,440_Obs,380_Obs,340_Obs,PW_Obs_Lev1.5,Alpha_440-870_Obs,Alpha_380-500_Obs,Alpha_440-675_Obs,Alpha_500-870_Obs,Alpha_340-440_Obs,Alpha_polar_440-675_Obs,500-NotInt_Obs,412_Obs,532_Obs,555_Obs,1640_Obs, 2011-JAN,0.032579,0.016227,0.036906,0.022276,0.051457,0.034601,0.093445,0.055772,0.113557,0.066141,0.143104,0.079122,0.164241,0.088651,0.526671,0.285473,1.706846,0.185769,1.573119,0.168779,1.953253,0.211343,1.681174,0.195048,1.429879,0.135857,-100.000000,-100.000000,0.093445,0.055772,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,0.015861,0.007413,14,14,14,14,14,14,14,14,14,14,14,14,14,-100,14,-100,-100,-100,14,264,264,264,264,264,264,264,264,264,264,264,264,264,-100,264,-100,-100,-100,264 2011-FEB,0.039845,0.025259,0.046516,0.030820,0.060735,0.043671,0.103211,0.069296,0.123000,0.083128,0.151195,0.102304,0.171841,0.117403,0.846493,0.588550,1.421064,0.310950,1.332735,0.260390,1.721522,0.238553,1.377799,0.346130,1.194086,0.263151,-100.000000,-100.000000,0.103211,0.069296,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,0.024108,0.020476,19,19,19,19,19,19,19,19,19,19,19,19,19,-100,19,-100,-100,-100,19,471,471,471,471,471,471,471,471,471,471,471,471,471,-100,471,-100,-100,-100,471 2011-MAR,0.051728,0.024184,0.059328,0.027863,0.074537,0.035350,0.117762,0.049276,0.136874,0.057039,0.163689,0.067797,0.182527,0.077218,0.719561,0.366527,1.311379,0.252772,1.202254,0.217379,1.532966,0.303244,1.285263,0.258198,1.075076,0.215104,-100.000000,-100.000000,0.117762,0.049276,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,0.032751,0.019471,20,20,20,20,20,20,20,20,20,20,20,20,20,-100,20,-100,-100,-100,20,573,573,573,573,573,573,573,573,573,573,573,573,573,-100,573,-100,-100,-100,573 2011-APR,0.069771,0.047564,0.085129,0.054569,0.115605,0.074174,0.189383,0.115996,0.227534,0.138866,0.280851,0.170444,0.320249,0.195889,1.363495,0.645320,1.509836,0.342622,1.440276,0.225564,1.658249,0.341340,1.485927,0.358734,1.284741,0.185219,-100.000000,-100.000000,0.189383,0.115996,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,0.047095,0.036845,17,17,17,17,17,17,17,17,17,17,17,17,17,-100,17,-100,-100,-100,17,420,420,420,420,420,420,420,420,420,420,420,420,420,-100,420,-100,-100,-100,420 2011-MAY,0.075188,0.032220,0.095654,0.041735,0.137659,0.065900,0.223830,0.109681,0.268757,0.131983,0.328568,0.159835,0.373498,0.180243,2.166048,0.786037,1.508660,0.186775,1.405170,0.126662,1.578739,0.135905,1.504318,0.217682,1.299766,0.150964,-100.000000,-100.000000,0.223830,0.109681,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,0.049584,0.020749,21,21,21,21,21,21,21,21,21,21,21,21,21,-100,21,-100,-100,-100,21,433,433,433,433,433,433,432,433,433,433,433,433,433,-100,433,-100,-100,-100,433 2011-JUN,0.082547,0.053307,0.113463,0.071913,0.178930,0.117058,0.299367,0.191546,0.358900,0.225477,0.431977,0.262620,0.484115,0.285288,2.589961,0.910131,1.728627,0.214320,1.398416,0.177333,1.699793,0.191660,1.766148,0.235532,1.244600,0.199516,-100.000000,-100.000000,0.299367,0.191546,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,0.046393,0.029237,26,26,26,26,26,26,26,26,26,26,26,26,26,-100,26,-100,-100,-100,26,593,593,593,593,593,593,592,593,593,593,593,593,593,-100,593,-100,-100,-100,593 2011-JUL,0.084535,0.050290,0.116507,0.067847,0.190644,0.108387,0.323124,0.171477,0.383892,0.198160,0.465101,0.226537,0.522597,0.242316,3.170398,0.961875,1.811104,0.157742,1.386883,0.218644,1.712956,0.164591,1.896950,0.161434,1.307410,0.282470,-100.000000,-100.000000,0.323124,0.171477,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,0.035323,0.016180,28,28,28,28,28,28,28,28,28,28,28,28,28,-100,28,-100,-100,-100,11,850,850,850,850,850,850,849,850,850,850,850,850,850,-100,850,-100,-100,-100,303 2011-AUG,0.056402,0.039099,0.082668,0.054466,0.135702,0.088638,0.234305,0.143714,0.282224,0.168626,0.344714,0.193749,0.391692,0.210623,2.649458,0.718164,1.853127,0.162181,1.512722,0.237647,1.797955,0.176489,1.914704,0.169852,1.402420,0.276508,-100.000000,-100.000000,0.234305,0.143714,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,0.031432,0.019095,19,19,19,19,19,19,19,19,19,19,19,19,19,-100,19,-100,-100,-100,17,543,543,543,543,543,543,543,543,543,543,543,543,543,-100,543,-100,-100,-100,466 2011-SEP,0.094129,0.063770,0.132775,0.088315,0.217090,0.141856,0.375684,0.225261,0.448778,0.265233,0.545597,0.303845,0.621041,0.331061,3.074343,0.685090,1.869495,0.144292,1.419899,0.188928,1.805759,0.176019,1.942207,0.145155,1.321471,0.217859,-100.000000,-100.000000,0.375684,0.225261,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,0.046261,0.028351,9,9,9,9,9,9,9,9,9,9,9,9,9,-100,9,-100,-100,-100,9,251,251,251,251,251,251,249,251,251,251,251,251,251,-100,251,-100,-100,-100,251 2011-OCT,0.034293,0.011409,0.043318,0.014857,0.061506,0.023173,0.107367,0.040525,0.129752,0.049628,0.162711,0.064138,0.188776,0.076638,1.351194,0.430150,1.649598,0.189406,1.497337,0.129993,1.801229,0.202462,1.641974,0.199809,1.406403,0.134251,-100.000000,-100.000000,0.107367,0.040525,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,0.021696,0.009868,20,20,20,20,20,20,20,20,20,20,20,20,20,-100,20,-100,-100,-100,20,563,563,563,563,563,563,563,563,563,563,563,563,563,-100,563,-100,-100,-100,563 2011-NOV,0.027067,0.009459,0.031461,0.011437,0.041867,0.016606,0.073734,0.029158,0.090322,0.036650,0.112043,0.046931,0.125950,0.055250,0.805972,0.372620,1.577722,0.291647,1.488881,0.185528,1.832963,0.274914,1.531338,0.316799,1.244937,0.182080,-100.000000,-100.000000,0.073734,0.029158,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,0.015363,0.009253,18,18,18,18,18,18,18,18,18,18,18,18,18,-100,18,-100,-100,-100,18,534,534,534,534,534,534,534,534,534,534,534,534,534,-100,534,-100,-100,-100,534 2011-DEC,0.025340,0.005473,0.027461,0.006704,0.037093,0.010359,0.067796,0.017197,0.082537,0.020952,0.103755,0.025471,0.115939,0.028190,0.740201,0.240871,1.676972,0.134540,1.551707,0.134697,1.934692,0.171025,1.647635,0.149535,1.336730,0.118654,-100.000000,-100.000000,0.067796,0.017197,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,0.011643,0.003931,17,17,17,17,17,17,17,17,17,17,17,17,17,-100,17,-100,-100,-100,17,381,381,381,381,381,381,381,381,381,381,381,381,381,-100,381,-100,-100,-100,381 2011-YEAR,0.056119,0.024507,0.072599,0.036589,0.108569,0.062941,0.184084,0.106260,0.220511,0.126600,0.269442,0.152255,0.305206,0.172048,1.666983,0.998651,1.635369,0.174483,1.434116,0.102224,1.752506,0.127856,1.639620,0.212993,1.295626,0.099297,-100.000000,-100.000000,0.184084,0.106260,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,0.031459,0.013738,228,228,228,228,228,228,228,228,228,228,228,228,228,-100,228,-100,-100,-100,209,5876,5876,5876,5876,5876,5876,5871,5876,5876,5876,5876,5876,5876,-100,5876,-100,-100,-100,5252