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Aerosol Optical Depth & Snow Cover

Global Map Aerosol Optical Depth Image 1 Global Map Aerosol Optical Depth Image 2 Global Map Aerosol Optical Depth Image 3 Global Map Aerosol Optical Depth Image 4 Global Map Aerosol Optical Depth Image 5 Global Map Aerosol Optical Depth Image 6 Global Map Aerosol Optical Depth Image 7 Global Map Aerosol Optical Depth Image 8 Global Map Aerosol Optical Depth Image 9 Global Map Aerosol Optical Depth Image 10 Global Map Aerosol Optical Depth Image 11 Global Map Aerosol Optical Depth Image 12 Global Map Aerosol Optical Depth Image 13 Global Map Aerosol Optical Depth Image 14 Global Map Aerosol Optical Depth Image 15 Global Map Aerosol Optical Depth Image 16 Global Map Aerosol Optical Depth Image 17 Global Map Aerosol Optical Depth Image 18 Global Map Aerosol Optical Depth Image 19 Global Map Aerosol Optical Depth Image 20 Global Map Aerosol Optical Depth Image 21 Global Map Aerosol Optical Depth Image 22 Global Map Aerosol Optical Depth Image 23 Global Map Aerosol Optical Depth Image 24 Global Map Aerosol Optical Depth Image 25 Global Map Aerosol Optical Depth Image 26 Global Map Aerosol Optical Depth Image 27 Global Map Aerosol Optical Depth Image 28 Global Map Aerosol Optical Depth Image 29 Global Map Aerosol Optical Depth Image 30 Global Map Aerosol Optical Depth Image 31 Global Map Aerosol Optical Depth Image 32 Global Map Aerosol Optical Depth Image 33 Global Map Aerosol Optical Depth Image 34 Global Map Aerosol Optical Depth Image 35 Global Map Aerosol Optical Depth Image 36 Global Map Aerosol Optical Depth Image 37 Global Map Aerosol Optical Depth Image 38 Global Map Aerosol Optical Depth Image 39 Global Map Aerosol Optical Depth Image 40 Global Map Aerosol Optical Depth Image 41 Global Map Aerosol Optical Depth Image 42 Global Map Aerosol Optical Depth Image 43 Global Map Aerosol Optical Depth Image 44 Global Map Aerosol Optical Depth Image 45 Global Map Aerosol Optical Depth Image 46 Global Map Aerosol Optical Depth Image 47 Global Map Aerosol Optical Depth Image 48 Global Map Aerosol Optical Depth Image 49 Global Map Aerosol Optical Depth Image 50 Global Map Aerosol Optical Depth Image 51 Global Map Aerosol Optical Depth Image 52 Global Map Aerosol Optical Depth Image 53 Global Map Aerosol Optical Depth Image 54 Global Map Aerosol Optical Depth Image 55 Global Map Aerosol Optical Depth Image 56 Global Map Aerosol Optical Depth Image 57 Global Map Aerosol Optical Depth Image 58 Global Map Aerosol Optical Depth Image 59 Global Map Aerosol Optical Depth Image 60 Global Map Aerosol Optical Depth Image 61 Global Map Aerosol Optical Depth Image 62 Global Map Aerosol Optical Depth Image 63 Global Map Aerosol Optical Depth Image 64 Global Map Aerosol Optical Depth Image 65 Global Map Aerosol Optical Depth Image 66 Global Map Aerosol Optical Depth Image 67 Global Map Aerosol Optical Depth Image 68 Global Map Aerosol Optical Depth Image 69 Global Map Aerosol Optical Depth Image 70 Global Map Aerosol Optical Depth Image 71 Global Map Aerosol Optical Depth Image 72 Global Map Aerosol Optical Depth Image 73 Global Map Aerosol Optical Depth Image 74 Global Map Aerosol Optical Depth Image 75 Global Map Aerosol Optical Depth Image 76 Global Map Aerosol Optical Depth Image 77 Global Map Aerosol Optical Depth Image 78 Global Map Aerosol Optical Depth Image 79 Global Map Aerosol Optical Depth Image 80 Global Map Aerosol Optical Depth Image 81 Global Map Aerosol Optical Depth Image 82 Global Map Aerosol Optical Depth Image 83 Global Map Aerosol Optical Depth Image 84 Global Map Aerosol Optical Depth Image 85 Global Map Aerosol Optical Depth Image 86 Global Map Aerosol Optical Depth Image 87 Global Map Aerosol Optical Depth Image 88 Global Map Aerosol Optical Depth Image 89 Global Map Aerosol Optical Depth Image 90 Global Map Aerosol Optical Depth Image 91 Global Map Aerosol Optical Depth Image 92 Global Map Aerosol Optical Depth Image 93 Global Map Aerosol Optical Depth Image 94 Global Map Aerosol Optical Depth Image 95 Global Map Aerosol Optical Depth Image 96 Global Map Aerosol Optical Depth Image 97 Global Map Aerosol Optical Depth Image 98 Global Map Aerosol Optical Depth Image 99 Global Map Aerosol Optical Depth Image 100 Global Map Aerosol Optical Depth Image 101 Global Map Aerosol Optical Depth Image 102 Global Map Aerosol Optical Depth Image 103 Global Map Aerosol Optical Depth Image 104 Global Map Aerosol Optical Depth Image 105 Global Map Aerosol Optical Depth Image 106 Global Map Aerosol Optical Depth Image 107 Global Map Aerosol Optical Depth Image 108 Global Map Aerosol Optical Depth Image 109 Global Map Aerosol Optical Depth Image 110 Global Map Aerosol Optical Depth Image 111 Global Map Aerosol Optical Depth Image 112 Global Map Aerosol Optical Depth Image 113 Global Map Aerosol Optical Depth Image 114 Global Map Aerosol Optical Depth Image 115 Global Map Aerosol Optical Depth Image 116 Global Map Aerosol Optical Depth Image 117 Global Map Aerosol Optical Depth Image 118 Global Map Aerosol Optical Depth Image 119 Global Map Aerosol Optical Depth Image 120 Global Map Aerosol Optical Depth Image 121 Global Map Aerosol Optical Depth Image 122 Global Map Aerosol Optical Depth Image 123 Global Map Aerosol Optical Depth Image 124 Global Map Aerosol Optical Depth Image 125 Global Map Aerosol Optical Depth Image 126 Global Map Aerosol Optical Depth Image 127 Global Map Aerosol Optical Depth Image 128 Global Map Aerosol Optical Depth Image 129 Global Map Aerosol Optical Depth Image 130 Global Map Aerosol Optical Depth Image 131 Global Map Aerosol Optical Depth Image 132 Global Map Aerosol Optical Depth Image 133 Global Map Aerosol Optical Depth Image 134 Global Map Aerosol Optical Depth Image 135 Global Map Aerosol Optical Depth Image 136 Global Map Aerosol Optical Depth Image 137 Global Map Aerosol Optical Depth Image 138 Global Map Aerosol Optical Depth Image 139 Global Map Aerosol Optical Depth Image 140 Global Map Aerosol Optical Depth Image 141 Global Map Aerosol Optical Depth Image 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Map Aerosol Optical Depth Image 166 Global Map Aerosol Optical Depth Image 167 Global Map Aerosol Optical Depth Image 168 Global Map Aerosol Optical Depth Image 169 Global Map Aerosol Optical Depth Image 170 Global Map Aerosol Optical Depth Image 171 Global Map Aerosol Optical Depth Image 172 Global Map Aerosol Optical Depth Image 173 Global Map Aerosol Optical Depth Image 174 Global Map Aerosol Optical Depth Image 175 Global Map Aerosol Optical Depth Image 176 Global Map Aerosol Optical Depth Image 177 Global Map Aerosol Optical Depth Image 178 Global Map Aerosol Optical Depth Image 179 Global Map Aerosol Optical Depth Image 180 Global Map Aerosol Optical Depth Image 181 Global Map Aerosol Optical Depth Image 182 Global Map Aerosol Optical Depth Image 183 Global Map Aerosol Optical Depth Image 184 Global Map Aerosol Optical Depth Image 185 Global Map Aerosol Optical Depth Image 186 Global Map Aerosol Optical Depth Image 187 Global Map Aerosol Optical Depth Image 188 Global Map Aerosol Optical Depth Image 189 Global Map Aerosol Optical Depth Image 190 Global Map Aerosol Optical Depth Image 191 Global Map Aerosol Optical Depth Image 192 Global Map Aerosol Optical Depth Image 193 Global Map Aerosol Optical Depth Image 194 Global Map Aerosol Optical Depth Image 195 Global Map Aerosol Optical Depth Image 196 Global Map Aerosol Optical Depth Image 197 Global Map Aerosol Optical Depth Image 198 Global Map Aerosol Optical Depth Image 199 Global Map Aerosol Optical Depth Image 200 Global Map Aerosol Optical Depth Image 201 Global Map Aerosol Optical Depth Image 202 Global Map Aerosol Optical Depth Image 203 Global Map Aerosol Optical Depth Image 204 Global Map Aerosol Optical Depth Image 205 Global Map Aerosol Optical Depth Image 206 Global Map Aerosol Optical Depth Image 207 Global Map Aerosol Optical Depth Image 208 Global Map Aerosol Optical Depth Image 209 Global Map Aerosol Optical Depth Image 210 Global Map Aerosol Optical Depth Image 211 Global Map Aerosol Optical Depth Image 212 Global Map Aerosol Optical Depth Image 213 Global Map Aerosol Optical Depth Image 214 Global Map Aerosol Optical Depth Image 215 Global Map Aerosol Optical Depth Image 216 Global Map Aerosol Optical Depth Image 217 Global Map Aerosol Optical Depth Image 218
Aerosol Optical Depth
Aerosol Optical Depth Scale
Snow Cover
Snow Cover Scale
Global Map Snow Cover Image 1 Global Map Snow Cover Image 2 Global Map Snow Cover Image 3 Global Map Snow Cover Image 4 Global Map Snow Cover Image 5 Global Map Snow Cover Image 6 Global Map Snow Cover Image 7 Global Map Snow Cover Image 8 Global Map Snow Cover Image 9 Global Map Snow Cover Image 10 Global Map Snow Cover Image 11 Global Map Snow Cover Image 12 Global Map Snow Cover Image 13 Global Map Snow Cover Image 14 Global Map Snow Cover Image 15 Global Map Snow Cover Image 16 Global Map Snow Cover Image 17 Global Map Snow Cover Image 18 Global Map Snow Cover Image 19 Global Map Snow Cover Image 20 Global Map Snow Cover Image 21 Global Map Snow Cover Image 22 Global Map Snow Cover Image 23 Global Map Snow Cover Image 24 Global Map Snow Cover Image 25 Global Map Snow Cover Image 26 Global Map Snow Cover Image 27 Global Map Snow Cover Image 28 Global Map Snow Cover Image 29 Global Map Snow Cover Image 30 Global Map Snow Cover Image 31 Global Map Snow Cover Image 32 Global Map Snow Cover Image 33 Global Map Snow Cover Image 34 Global Map Snow Cover Image 35 Global Map Snow Cover Image 36 Global Map Snow Cover Image 37 Global Map Snow Cover Image 38 Global Map Snow Cover Image 39 Global Map Snow Cover Image 40 Global Map Snow Cover Image 41 Global Map Snow Cover Image 42 Global Map Snow Cover Image 43 Global Map Snow Cover Image 44 Global Map Snow Cover Image 45 Global Map Snow Cover Image 46 Global Map Snow Cover Image 47 Global Map Snow Cover Image 48 Global Map Snow Cover Image 49 Global Map Snow Cover Image 50 Global Map Snow Cover Image 51 Global Map Snow Cover Image 52 Global Map Snow Cover Image 53 Global Map Snow Cover Image 54 Global Map Snow Cover Image 55 Global Map Snow Cover Image 56 Global Map Snow Cover Image 57 Global Map Snow Cover Image 58 Global Map Snow Cover Image 59 Global Map Snow Cover Image 60 Global Map Snow Cover Image 61 Global Map Snow Cover Image 62 Global Map Snow Cover Image 63 Global Map Snow Cover Image 64 Global Map Snow Cover Image 65 Global Map Snow Cover Image 66 Global Map Snow Cover Image 67 Global Map Snow Cover Image 68 Global Map Snow Cover Image 69 Global Map Snow Cover Image 70 Global Map Snow Cover Image 71 Global Map Snow Cover Image 72 Global Map Snow Cover Image 73 Global Map Snow Cover Image 74 Global Map Snow Cover Image 75 Global Map Snow Cover Image 76 Global Map Snow Cover Image 77 Global Map Snow Cover Image 78 Global Map Snow Cover Image 79 Global Map Snow Cover Image 80 Global Map Snow Cover Image 81 Global Map Snow Cover Image 82 Global Map Snow Cover Image 83 Global Map Snow Cover Image 84 Global Map Snow Cover Image 85 Global Map Snow Cover Image 86 Global Map Snow Cover Image 87 Global Map Snow Cover Image 88 Global Map Snow Cover Image 89 Global Map Snow Cover Image 90 Global Map Snow Cover Image 91 Global Map Snow Cover Image 92 Global Map Snow Cover Image 93 Global Map Snow Cover Image 94 Global Map Snow Cover Image 95 Global Map Snow Cover Image 96 Global Map Snow Cover Image 97 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Snow Cover Image 129 Global Map Snow Cover Image 130 Global Map Snow Cover Image 131 Global Map Snow Cover Image 132 Global Map Snow Cover Image 133 Global Map Snow Cover Image 134 Global Map Snow Cover Image 135 Global Map Snow Cover Image 136 Global Map Snow Cover Image 137 Global Map Snow Cover Image 138 Global Map Snow Cover Image 139 Global Map Snow Cover Image 140 Global Map Snow Cover Image 141 Global Map Snow Cover Image 142 Global Map Snow Cover Image 143 Global Map Snow Cover Image 144 Global Map Snow Cover Image 145 Global Map Snow Cover Image 146 Global Map Snow Cover Image 147 Global Map Snow Cover Image 148 Global Map Snow Cover Image 149 Global Map Snow Cover Image 150 Global Map Snow Cover Image 151 Global Map Snow Cover Image 152 Global Map Snow Cover Image 153 Global Map Snow Cover Image 154 Global Map Snow Cover Image 155 Global Map Snow Cover Image 156 Global Map Snow Cover Image 157 Global Map Snow Cover Image 158 Global Map Snow Cover Image 159 Global Map Snow Cover Image 160 Global Map Snow Cover Image 161 Global Map Snow Cover Image 162 Global Map Snow Cover Image 163 Global Map Snow Cover Image 164 Global Map Snow Cover Image 165 Global Map Snow Cover Image 166 Global Map Snow Cover Image 167 Global Map Snow Cover Image 168 Global Map Snow Cover Image 169 Global Map Snow Cover Image 170 Global Map Snow Cover Image 171 Global Map Snow Cover Image 172 Global Map Snow Cover Image 173 Global Map Snow Cover Image 174 Global Map Snow Cover Image 175 Global Map Snow Cover Image 176 Global Map Snow Cover Image 177 Global Map Snow Cover Image 178 Global Map Snow Cover Image 179 Global Map Snow Cover Image 180 Global Map Snow Cover Image 181 Global Map Snow Cover Image 182 Global Map Snow Cover Image 183 Global Map Snow Cover Image 184 Global Map Snow Cover Image 185 Global Map Snow Cover Image 186 Global Map Snow Cover Image 187 Global Map Snow Cover Image 188 Global Map Snow Cover Image 189 Global Map Snow Cover Image 190 Global Map Snow Cover Image 191 Global Map Snow Cover Image 192 Global Map Snow Cover Image 193 Global Map Snow Cover Image 194 Global Map Snow Cover Image 195 Global Map Snow Cover Image 196 Global Map Snow Cover Image 197 Global Map Snow Cover Image 198 Global Map Snow Cover Image 199 Global Map Snow Cover Image 200 Global Map Snow Cover Image 201 Global Map Snow Cover Image 202 Global Map Snow Cover Image 203 Global Map Snow Cover Image 204 Global Map Snow Cover Image 205 Global Map Snow Cover Image 206 Global Map Snow Cover Image 207 Global Map Snow Cover Image 208 Global Map Snow Cover Image 209 Global Map Snow Cover Image 210 Global Map Snow Cover Image 211 Global Map Snow Cover Image 212 Global Map Snow Cover Image 213 Global Map Snow Cover Image 214 Global Map Snow Cover Image 215 Global Map Snow Cover Image 216 Global Map Snow Cover Image 217 Global Map Snow Cover Image 218

The aerosol maps show average monthly aerosol amounts around the world based on observations from the MODIS sensor on NASA's Terra satellite. Satellite measurements of aerosols, called aerosol optical thickness, are based on the fact that the particles change the way the atmosphere reflects and absorbs visible and infrared light. An optical thickness of less than 0.1 (palest yellow) indicates a crystal clear sky with maximum visibility, whereas a value of 1 (reddish brown) indicates very hazy conditions.

The snow cover map shows the fraction of an area covered by snow on a monthly basis. Measurements were made by the MODIS sensor on NASA’s Terra satellite. Gray indicates land areas with no snow, darkest blue represents minimal snow cover, and solid white indicates 100 percent snow cover. Because MODIS relies on visible light to assess snow cover, the sensor cannot collect data over the highest latitudes of the Northern Hemisphere during winter when no sunlight reaches the polar region.

View, download, or analyze more of these data from NASA Earth Observations (NEO):
Aerosol Optical Depth
Snow Cover