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,
1999-JAN,0.032405,0.019862,0.036086,0.021448,0.047742,0.027066,0.077607,0.041662,0.095999,0.050527,0.119064,0.060816,0.134822,0.066789,0.638446,0.345141,1.499364,0.338546,1.608464,0.252996,1.690975,0.347160,1.433450,0.362166,1.379499,0.227251,-100.000000,-100.000000,0.077607,0.041662,-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,-100,303,303,303,303,303,303,303,303,303,303,303,303,303,-100,303,-100,-100,-100,-100
1999-FEB,0.040672,0.018929,0.049895,0.025918,0.069922,0.041310,0.121692,0.070541,0.148088,0.084324,0.183180,0.101609,0.211917,0.116200,0.610109,0.305613,1.536680,0.343632,1.524082,0.292241,1.752637,0.269745,1.492740,0.393537,1.424207,0.277593,-100.000000,-100.000000,0.121692,0.070541,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,14,14,14,14,14,14,14,14,14,14,14,14,14,-100,14,-100,-100,-100,-100,280,280,280,280,280,280,280,280,280,280,280,280,280,-100,280,-100,-100,-100,-100
1999-MAR,0.054791,0.027820,0.063838,0.033322,0.084503,0.044985,0.131594,0.069257,0.156995,0.083960,0.192306,0.102170,0.221214,0.114566,0.658844,0.252042,1.354039,0.322464,1.369999,0.249317,1.475244,0.328244,1.334380,0.342420,1.384138,0.316860,-100.000000,-100.000000,0.131594,0.069257,-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,-100,680,680,680,680,680,680,680,680,680,680,680,680,680,-100,680,-100,-100,-100,-100
1999-APR,0.066916,0.054341,0.081763,0.064549,0.107439,0.088306,0.162832,0.129688,0.194732,0.149663,0.238854,0.174481,0.269274,0.193624,1.098723,0.619268,1.321798,0.275932,1.518376,0.281512,1.465362,0.281960,1.268657,0.294038,1.347497,0.261603,-100.000000,-100.000000,0.162832,0.129688,-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,-100,552,552,552,552,552,552,552,552,552,552,552,552,552,-100,552,-100,-100,-100,-100
1999-MAY,0.081177,0.044863,0.095818,0.049145,0.126837,0.062684,0.193304,0.096831,0.232840,0.118479,0.292465,0.148876,0.341641,0.176559,1.685234,0.565494,1.300717,0.369257,1.500917,0.300359,1.394720,0.360378,1.265725,0.377833,1.482155,0.294609,-100.000000,-100.000000,0.193304,0.096831,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,25,25,25,25,25,25,25,25,25,25,25,25,25,-100,25,-100,-100,-100,-100,614,614,614,614,614,614,614,614,614,614,614,614,614,-100,614,-100,-100,-100,-100
1999-JUN,0.089221,0.041549,0.114545,0.058486,0.173222,0.097957,0.281265,0.163247,0.337651,0.192432,0.408364,0.224944,0.461016,0.236880,2.445200,0.891923,1.596539,0.269073,1.419571,0.271704,1.589239,0.251907,1.612011,0.288446,1.330654,0.312979,-100.000000,-100.000000,0.281265,0.163247,-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,-100,308,308,308,308,308,308,307,308,308,308,308,308,308,-100,308,-100,-100,-100,-100
1999-JUL,0.114766,0.090021,0.150735,0.115345,0.239845,0.177160,0.399538,0.275220,0.480574,0.316399,0.579666,0.358420,0.653121,0.373517,3.144990,0.682623,1.780974,0.217853,1.495047,0.287342,1.737191,0.218496,1.815850,0.231946,1.403278,0.371317,-100.000000,-100.000000,0.399538,0.275220,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,24,24,24,24,24,24,24,24,24,24,24,24,24,-100,24,-100,-100,-100,-100,441,441,441,441,441,441,438,441,441,441,441,441,441,-100,441,-100,-100,-100,-100
1999-AUG,0.091849,0.051143,0.128021,0.075714,0.214149,0.130674,0.369530,0.217389,0.449545,0.255614,0.548833,0.298881,0.623310,0.320745,2.739006,0.473970,1.867123,0.154728,1.542360,0.303480,1.803126,0.198723,1.909483,0.150661,1.431915,0.378108,-100.000000,-100.000000,0.369530,0.217389,-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,-100,346,346,346,346,346,346,342,346,346,346,346,346,346,-100,346,-100,-100,-100,-100
1999-SEP,0.049957,0.051135,0.066546,0.075022,0.105244,0.126767,0.181200,0.207714,0.223108,0.243021,0.285045,0.282368,0.329784,0.303163,1.867776,0.743484,1.715121,0.265335,1.921569,0.324285,1.824992,0.246795,1.683116,0.291613,1.856359,0.430811,-100.000000,-100.000000,0.181200,0.207714,-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,-100,447,447,447,447,447,447,447,447,447,447,447,447,447,-100,447,-100,-100,-100,-100
1999-OCT,0.036246,0.018998,0.044464,0.024039,0.066529,0.036364,0.114159,0.060295,0.141642,0.073720,0.182267,0.093078,0.215587,0.109173,1.349234,0.416872,1.718575,0.319847,1.752700,0.315607,1.793171,0.313342,1.703709,0.335037,1.705505,0.344055,-100.000000,-100.000000,0.114159,0.060295,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,25,25,25,25,25,25,25,25,25,25,25,25,25,-100,25,-100,-100,-100,-100,621,621,621,621,621,621,621,621,621,621,621,621,621,-100,621,-100,-100,-100,-100
1999-NOV,0.042288,0.030977,0.053006,0.042068,0.078979,0.069251,0.134190,0.119275,0.165490,0.145326,0.207287,0.178238,0.238018,0.201917,1.263011,0.748095,1.612255,0.293577,1.639393,0.228573,1.726949,0.277224,1.582104,0.317203,1.498807,0.213931,-100.000000,-100.000000,0.134190,0.119275,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,24,24,24,24,24,24,24,24,24,24,24,24,24,-100,24,-100,-100,-100,-100,486,486,486,486,486,486,486,486,486,486,486,486,486,-100,486,-100,-100,-100,-100
1999-DEC,0.025485,0.012310,0.031105,0.016683,0.044031,0.026001,0.077477,0.043083,0.098738,0.052659,0.126293,0.064677,0.145213,0.073102,0.724816,0.372057,1.744980,0.209843,1.858276,0.229110,1.976148,0.250349,1.668364,0.227016,1.565054,0.228538,-100.000000,-100.000000,0.077477,0.043083,-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,-100,645,645,645,645,645,645,645,645,645,645,645,645,645,-100,645,-100,-100,-100,-100
1999-YEAR,0.060481,0.028112,0.076318,0.038439,0.113203,0.064123,0.187032,0.107629,0.227117,0.128971,0.280302,0.154287,0.320410,0.173177,1.518782,0.872948,1.587347,0.188843,1.595896,0.169729,1.685813,0.171829,1.564132,0.209124,1.484089,0.156772,-100.000000,-100.000000,0.187032,0.107629,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,252,252,252,252,252,252,252,252,252,252,252,252,252,-100,252,-100,-100,-100,-100,5723,5723,5723,5723,5723,5723,5715,5723,5723,5723,5723,5723,5723,-100,5723,-100,-100,-100,-100