% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 191 148 136 69 128 142 100 203 290 711 284 539 295 135 217 233 369 320 279 255 251 202 138 207 206 195 301 266 235 229 155 269 253 247 222 155 149 163 116 204 136 198 212 120 116 154 141 168 122 109 111 135 111 97 106 86 103 96 70 86 107 39 76 83 79 50 57 63 47 61 59 59 15 53 55 56 33 -35 50 46 -13 46 -18 23 17 -15 47 -19 40 28 33 -17 19 47 49 18 -36 -6 -12 -10 15 27 26 12 22 22 9 -8 16 34 -17 36 17 54 -33 -29 17 -14 -8 -22 29 -37 -25 -31 -35 -7 9 -21