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, 2000-JAN,0.030367,0.015762,0.035074,0.018847,0.047771,0.030689,0.077804,0.053155,0.097147,0.066490,0.125267,0.082433,0.143820,0.095105,0.530820,0.398852,1.408925,0.370002,1.796634,0.332707,1.597512,0.393284,1.330428,0.372025,1.613700,0.247338,-100.000000,-100.000000,0.077804,0.053155,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,17,17,17,17,17,17,17,17,17,17,17,17,17,-100,17,-100,-100,-100,-100,293,293,293,293,293,293,293,293,293,293,293,293,293,-100,293,-100,-100,-100,-100 2000-FEB,0.035596,0.018287,0.047190,0.025516,0.071795,0.040812,0.120205,0.069137,0.146379,0.084538,0.181572,0.102214,0.207475,0.113824,0.717747,0.462841,1.606776,0.332359,1.526459,0.161444,1.624184,0.253010,1.621598,0.369651,1.463106,0.241376,-100.000000,-100.000000,0.120205,0.069137,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,17,17,17,17,17,17,17,17,17,17,17,17,17,-100,17,-100,-100,-100,-100,493,493,493,493,493,493,493,493,493,493,493,493,493,-100,493,-100,-100,-100,-100 2000-MAR,0.041575,0.025222,0.050618,0.031312,0.075946,0.047372,0.130309,0.078921,0.159612,0.096343,0.203495,0.119357,0.237827,0.136054,1.035173,0.502326,1.739996,0.226197,1.657737,0.194029,1.791829,0.238723,1.752566,0.242710,1.625661,0.228576,-100.000000,-100.000000,0.130309,0.078921,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,23,23,23,23,23,23,23,23,23,23,23,23,23,-100,23,-100,-100,-100,-100,762,762,762,762,762,762,762,762,762,762,762,762,762,-100,762,-100,-100,-100,-100 2000-APR,0.062971,0.030111,0.073153,0.036934,0.101908,0.054481,0.164214,0.087059,0.197055,0.104600,0.244958,0.126903,0.281815,0.143305,1.224510,0.569250,1.479802,0.240215,1.464327,0.168761,1.567442,0.217733,1.471799,0.262060,1.421254,0.169761,-100.000000,-100.000000,0.164214,0.087059,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,16,16,16,16,16,16,16,16,16,16,16,16,16,-100,16,-100,-100,-100,-100,359,359,359,359,359,359,359,359,359,359,359,359,359,-100,359,-100,-100,-100,-100 2000-MAY,0.107710,0.048793,0.135748,0.066405,0.206937,0.112081,0.346720,0.194315,0.420673,0.234910,0.517458,0.284163,0.587605,0.315812,2.180490,0.940782,1.606757,0.255062,1.469825,0.144008,1.628570,0.183104,1.615665,0.292964,1.352168,0.184669,-100.000000,-100.000000,0.346720,0.194315,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,20,20,20,20,20,20,20,20,20,20,20,20,20,-100,20,-100,-100,-100,-100,529,529,529,529,529,529,526,529,529,529,529,529,529,-100,529,-100,-100,-100,-100 2000-JUN,0.101030,0.054199,0.138801,0.075616,0.225046,0.126047,0.386922,0.213675,0.473187,0.257016,0.584757,0.309630,0.667781,0.344161,3.027146,0.884764,1.818220,0.250034,1.566192,0.282500,1.778045,0.243058,1.852226,0.263527,1.429737,0.318983,-100.000000,-100.000000,0.386922,0.213675,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,21,21,21,21,21,21,21,21,21,21,21,21,21,-100,21,-100,-100,-100,-100,446,446,446,446,446,446,444,446,446,446,446,446,446,-100,446,-100,-100,-100,-100 2000-JUL,0.088001,0.059914,0.122290,0.085417,0.204793,0.140816,0.355529,0.225387,0.431241,0.260879,0.528075,0.296839,0.601691,0.316146,2.768007,0.715664,1.919401,0.200235,1.587545,0.325038,1.847067,0.221632,1.972577,0.198815,1.490769,0.404889,-100.000000,-100.000000,0.355529,0.225387,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,21,21,21,21,21,21,21,21,21,21,21,21,21,-100,21,-100,-100,-100,-100,449,449,449,449,449,449,449,449,449,449,449,449,449,-100,449,-100,-100,-100,-100 2000-AUG,0.102459,0.063449,0.144718,0.083737,0.237219,0.127921,0.392791,0.199052,0.470264,0.231133,0.560522,0.264913,0.626501,0.284718,2.802258,0.891798,1.806092,0.172338,1.375732,0.222948,1.684376,0.184103,1.869795,0.169620,1.221203,0.247864,-100.000000,-100.000000,0.392791,0.199052,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,21,21,21,21,21,21,21,21,21,21,21,21,21,-100,21,-100,-100,-100,-100,357,357,357,357,357,357,356,357,357,357,357,357,357,-100,357,-100,-100,-100,-100 2000-SEP,0.045506,0.034423,0.063053,0.049627,0.102699,0.084272,0.176691,0.140714,0.216472,0.166522,0.270754,0.197845,0.310117,0.218018,2.084996,1.112888,1.848968,0.258271,1.745631,0.339501,1.852062,0.253890,1.862058,0.286132,1.602235,0.346323,-100.000000,-100.000000,0.176691,0.140714,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,20,20,20,20,20,20,20,20,20,20,20,20,20,-100,20,-100,-100,-100,-100,566,566,566,566,566,566,566,566,566,566,566,566,566,-100,566,-100,-100,-100,-100 2000-OCT,0.044242,0.028650,0.055065,0.038738,0.085393,0.064645,0.149991,0.115818,0.186685,0.144531,0.238549,0.182224,0.281201,0.211544,1.431318,0.808852,1.696123,0.328278,1.735038,0.211881,1.786777,0.276363,1.681283,0.357823,1.744765,0.318660,-100.000000,-100.000000,0.149991,0.115818,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,23,23,23,23,23,23,23,23,23,23,23,23,23,-100,23,-100,-100,-100,-100,743,743,743,743,743,743,743,743,743,743,743,743,743,-100,743,-100,-100,-100,-100 2000-NOV,0.027650,0.016602,0.033208,0.021575,0.049484,0.033807,0.086953,0.055305,0.108505,0.067087,0.137910,0.080363,0.159427,0.088795,0.941529,0.480794,1.748010,0.299184,1.745689,0.231670,1.883550,0.271509,1.719646,0.329877,1.611285,0.259906,-100.000000,-100.000000,0.086953,0.055305,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,21,21,21,21,21,21,21,21,21,21,21,21,21,-100,21,-100,-100,-100,-100,437,437,437,437,437,437,437,437,437,437,437,437,437,-100,437,-100,-100,-100,-100 2000-DEC,0.033432,0.016966,0.035801,0.017432,0.048668,0.022189,0.081275,0.036324,0.101395,0.045466,0.130905,0.057140,0.152432,0.065514,0.502350,0.198441,1.631346,0.331739,1.791418,0.203714,1.789413,0.313793,1.581601,0.354921,1.658756,0.179321,-100.000000,-100.000000,0.081275,0.036324,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,21,21,21,21,21,21,21,21,21,21,21,21,21,-100,21,-100,-100,-100,-100,493,493,493,493,493,493,493,493,493,493,493,493,493,-100,493,-100,-100,-100,-100 2000-YEAR,0.060045,0.031012,0.077893,0.044258,0.121472,0.074384,0.205784,0.126051,0.250718,0.151541,0.310352,0.181753,0.354808,0.204205,1.603862,0.927697,1.692535,0.151993,1.621852,0.143316,1.735902,0.109625,1.694270,0.183800,1.519553,0.149011,-100.000000,-100.000000,0.205784,0.126051,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,241,241,241,241,241,241,241,241,241,241,241,241,241,-100,241,-100,-100,-100,-100,5927,5927,5927,5927,5927,5927,5921,5927,5927,5927,5927,5927,5927,-100,5927,-100,-100,-100,-100