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,
1998-JAN,0.035427,0.022780,0.042583,0.025876,0.060876,0.035496,0.101105,0.054190,0.125051,0.063657,0.156468,0.075250,0.176516,0.083690,0.977359,0.453470,1.659102,0.320384,1.673733,0.280285,1.764152,0.302525,1.624468,0.352209,1.406536,0.168430,-100.000000,-100.000000,0.101105,0.054190,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,18,18,18,18,18,18,18,18,18,18,18,18,18,-100,18,-100,-100,-100,-100,271,271,271,271,271,271,271,271,271,271,271,271,271,-100,271,-100,-100,-100,-100
1998-FEB,0.049450,0.038602,0.055807,0.038884,0.072354,0.040114,0.108850,0.046345,0.130458,0.049702,0.160619,0.054498,0.180495,0.057378,0.775114,0.245906,1.449867,0.404885,1.514236,0.320663,1.529550,0.374189,1.423239,0.436916,1.345024,0.240594,-100.000000,-100.000000,0.108850,0.046345,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,12,12,12,12,12,12,12,12,12,12,12,12,12,-100,12,-100,-100,-100,-100,218,218,218,218,218,218,218,218,218,218,218,218,218,-100,218,-100,-100,-100,-100
1998-MAR,0.058957,0.042380,0.070143,0.047360,0.097368,0.059857,0.155986,0.086108,0.189208,0.101653,0.237265,0.122606,0.270693,0.136856,1.094795,0.710899,1.582555,0.327079,1.600450,0.246560,1.664806,0.316852,1.571405,0.346654,1.469945,0.268153,-100.000000,-100.000000,0.155986,0.086108,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,18,18,18,18,18,18,18,18,18,18,18,18,18,-100,18,-100,-100,-100,-100,796,796,796,796,796,796,796,796,796,796,796,796,796,-100,796,-100,-100,-100,-100
1998-APR,0.074077,0.034085,0.086883,0.041897,0.115438,0.062241,0.170510,0.099391,0.202619,0.118241,0.250978,0.139840,0.282084,0.155516,1.139783,0.642548,1.242543,0.238541,1.452780,0.194230,1.305686,0.225424,1.214149,0.255309,1.339360,0.199736,-100.000000,-100.000000,0.170510,0.099391,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,19,19,19,19,19,19,19,19,19,19,19,19,19,-100,19,-100,-100,-100,-100,450,450,450,450,450,450,449,450,450,450,450,450,450,-100,450,-100,-100,-100,-100
1998-MAY,0.102326,0.044994,0.127339,0.057862,0.188095,0.093282,0.297747,0.152783,0.356248,0.180769,0.433740,0.209128,0.469471,0.221105,2.068921,0.562066,1.491131,0.263403,1.406100,0.210556,1.481546,0.213521,1.499437,0.294483,1.280589,0.228638,-100.000000,-100.000000,0.297747,0.152783,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,18,18,18,18,18,18,17,18,18,18,18,18,18,-100,18,-100,-100,-100,-100,461,461,461,461,461,459,446,461,461,461,461,461,459,-100,461,-100,-100,-100,-100
1998-JUN,0.078331,0.052363,0.104315,0.073471,0.169481,0.122920,0.281633,0.201284,0.339296,0.235842,0.413821,0.269177,0.460747,0.285364,2.603702,0.900707,1.745016,0.164848,1.531332,0.268020,1.673956,0.175146,1.785082,0.182794,1.369756,0.325534,-100.000000,-100.000000,0.281633,0.201284,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,18,18,18,18,18,18,18,18,18,18,18,18,18,-100,18,-100,-100,-100,-100,247,247,247,247,247,244,236,247,247,247,247,247,244,-100,247,-100,-100,-100,-100
1998-JUL,0.119905,0.067630,0.174721,0.098165,0.297240,0.166348,0.493594,0.275644,0.590888,0.328366,0.696000,0.383536,0.755162,0.424582,2.731001,0.833009,1.809830,0.193764,1.401969,0.261956,1.647215,0.194953,1.888804,0.192507,1.123474,0.271306,-100.000000,-100.000000,0.493594,0.275644,-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,-100,424,424,424,424,424,418,405,424,424,424,424,424,418,-100,424,-100,-100,-100,-100
1998-AUG,0.101595,0.052087,0.139871,0.072413,0.227523,0.122300,0.362517,0.203795,0.430496,0.240138,0.513916,0.279742,0.561017,0.301632,2.820824,1.032247,1.596666,0.220774,1.353449,0.344765,1.451967,0.246904,1.653193,0.227908,1.148785,0.360938,-100.000000,-100.000000,0.362517,0.203795,-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,-100,500,500,500,500,500,498,488,500,500,500,500,500,498,-100,500,-100,-100,-100,-100
1998-SEP,0.099389,0.063216,0.131344,0.085833,0.213293,0.138875,0.359886,0.225425,0.434756,0.266185,0.526123,0.313830,0.553264,0.327603,2.481058,0.816819,1.782248,0.142111,1.448035,0.236062,1.716088,0.168538,1.827442,0.145098,1.332022,0.264752,-100.000000,-100.000000,0.359886,0.225425,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,25,25,25,25,25,25,23,25,25,25,25,25,25,-100,25,-100,-100,-100,-100,633,633,633,633,633,627,600,633,633,633,633,633,627,-100,633,-100,-100,-100,-100
1998-OCT,0.032884,0.020094,0.043150,0.024387,0.061714,0.036369,0.104839,0.062615,0.130337,0.077705,0.166647,0.098584,0.181394,0.115642,1.185567,0.364320,1.623703,0.182705,1.710834,0.221548,1.757064,0.186488,1.585811,0.200314,1.272129,0.316851,-100.000000,-100.000000,0.104839,0.062615,-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,-100,457,457,457,457,457,457,457,457,457,457,457,457,457,-100,457,-100,-100,-100,-100
1998-NOV,0.027822,0.015027,0.034433,0.021483,0.053455,0.037361,0.094236,0.066181,0.116920,0.081359,0.145581,0.098177,0.166071,0.108181,0.945439,0.289290,1.759406,0.209790,1.634433,0.169013,1.844587,0.174910,1.748257,0.249983,1.454873,0.206132,-100.000000,-100.000000,0.094236,0.066181,-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,-100,276,276,276,276,276,276,276,276,276,276,276,276,276,-100,276,-100,-100,-100,-100
1998-DEC,0.035269,0.029893,0.043478,0.041656,0.065297,0.066876,0.111623,0.104978,0.137225,0.121279,0.166803,0.138738,0.186198,0.148961,1.067486,0.862685,1.740496,0.220787,1.615470,0.296012,1.885532,0.298625,1.706142,0.203417,1.340801,0.210485,-100.000000,-100.000000,0.111623,0.104978,-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,-100,319,319,319,319,319,319,319,319,319,319,319,319,319,-100,319,-100,-100,-100,-100
1998-YEAR,0.067953,0.032383,0.087839,0.046890,0.135178,0.081529,0.220210,0.134312,0.265292,0.159535,0.322330,0.186914,0.353593,0.198907,1.657587,0.806354,1.623547,0.166052,1.528568,0.117688,1.643512,0.171398,1.627286,0.187905,1.323608,0.106106,-100.000000,-100.000000,0.220210,0.134312,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,-100.000000,222,222,222,222,222,222,219,222,222,222,222,222,222,-100,222,-100,-100,-100,-100,5052,5052,5052,5052,5052,5033,4961,5052,5052,5052,5052,5052,5033,-100,5052,-100,-100,-100,-100