--------------------------------------------------------------
                   NCEP Eta Great Lakes surface temperature data (revised 8/2000)
                   --------------------------------------------------------------

The most recent data file is stored at ftp://coastwatch.glerl.noaa.gov/glsea/ncepetagl.dat, and contains
surface temperature data extracted from the daily Great Lakes Environmental Analysis (GLSEA) composite
at National Centers for Environmental Prediction (NCEP) Eta model grid points. This data is available
each day at about 06:30 LST as part of GLSEA production.  Historical data files are stored at URL
http://coastwatch.glerl.noaa.gov/cwdata/let/yyyy/, with names of form "gyyyyjjj00.let, where yyyy is
the 4-digit year, and jjj day of year.

The first record of each file is an eight character analysis date (yyyymmdd), followed by data records
with the following format:

Columns  Format      Description
-------  ------      -----------

  1- 5     I5     NCEP Eta grid point identifier
  6- 6     1X     Blank
  7-10   F4.1     Water surface temperature (C)
 11-11     1X     Blank
 12-15   F3.1     Ice concentration (1.00 = 100% ice)

In cases where an NCEP Eta grid point is over land, the coordinates of the nearest over-water point
have been SUBSTITUTED. The coordinates of the Eta points used in extracting surface temperatures from
GLSEA composite imagery are as follows, where I and J are the pixel coordinates within the Great Lakes
synoptic CoastWatch scene:
                                              Original
      Great                        Great     Coordinates
 ETA  Lakes     Coordinates        Lakes      Replaced
Point Point                        Point
  ID    ID   I   J   Lat     Lon     ID   I   J   Lat     Lon
-----  --- --- --- ------- -------  --- --- --- ------- -------

25560  503 155 116 41.7135 87.3436
25740  543 148 124 41.9187 87.5759
25741  544 164 122 41.8758 87.0568
25921  584 157 131 42.0816 87.2887
25922  585 173 129 42.0374 86.7685
25929  592 285 114 41.6648 83.1493
25930  593 301 111 41.6026 82.6358
25931  594 316 108 41.5382 82.1234
26101  624 149 140 42.2869 87.5221
26102  625 166 138 42.2438 87.0001
26103  626 182 136 42.1983 86.4788
26109  592 285 114 41.6648 83.1493  632 278 123 41.8780 83.3680
26110  633 294 120 41.8168 82.8527
26111  634 310 117 41.7533 82.3383
26112  635 326 115 41.6876 81.8250
26281  664 142 148 42.4918 87.7570
26282  665 158 146 42.4497 87.2332
26283  666 175 145 42.4053 86.7100
26291  633 294 120 41.8168 82.8527  674 303 126 41.9680 82.5547
26292  675 319 124 41.9033 82.0395
26293  676 335 121 41.8363 81.5254
26462  705 151 155 42.6551 87.4677
26463  706 167 153 42.6117 86.9427
26464  707 184 151 42.5660 86.4185
26472  715 312 133 42.1185 82.2554
26473  716 328 130 42.0525 81.7393
26474  717 344 127 41.9842 81.2244
26642  745 144 164 42.8601 87.7037
26643  746 160 162 42.8177 87.1769
26644  747 176 160 42.7731 86.6509
26652  795 299 151 42.5478 82.6914  755 306 142 42.3334 82.4727
26654  757 338 136 42.2009 81.4378
26655  758 354 133 42.1314 80.9220
26656  759 370 130 42.0596 80.4073
26823  786 153 171 43.0233 87.4126
26824  787 169 169 42.9796 86.8847
26825  788 185 167 42.9337 86.3575
26832  795 299 151 42.5478 82.6914
26834  797 331 145 42.4172 81.6527
26835  798 347 142 42.3486 81.1349
26836  799 363 139 42.2777 80.6183
26837  800 379 136 42.2047 80.1028
27003  826 145 179 43.2284 87.6498
27004  827 162 177 43.1858 87.1200
27005  828 178 176 43.1408 86.5910
27015  838 340 151 42.5655 81.3492
27016  839 356 148 42.4955 80.8307
27017  840 372 145 42.4234 80.3132
27018  841 388 142 42.3490 79.7970
27184  867 154 186 43.3914 87.3569
27185  868 171 184 43.3475 86.8260
27198  881 382 151 42.5682 80.0068
27199  882 398 148 42.4925 79.4898
27364  907 147 195 43.5966 87.5952
27365  908 164 193 43.5538 87.0624
27366  909 180 191 43.5086 86.5304
27374  917 311 172 43.0639 82.3057
27379  922 391 157 42.7123 79.6991
27380  923 407 154 42.6353 79.1813
27545  948 156 202 43.7595 87.3005
27546  949 173 200 43.7154 86.7665
27554  917 311 172 43.0639 82.3057  957 304 181 43.2786 82.5263
27555  958 320 179 43.2137 82.0007
27725  988 149 211 43.9648 87.5400
27726  989 165 209 43.9217 87.0042
27727  990 182 207 43.8763 86.4691
27735  998 313 188 43.4290 82.2207
27906 1029 158 218 44.1276 87.2433
27907 1030 175 216 44.0832 86.7063
27913 1036 274 202 43.7676 83.5024
27915 1038 307 197 43.6439 82.4422
27916 1039 323 194 43.5787 81.9138
27921 1044 404 179 43.2185 79.2890
28086 1069 151 227 44.3330 87.4841
28087 1070 167 225 44.2897 86.9451
28093 1036 274 202 43.7676 83.5024 1076 267 211 43.9802 83.7294
28095 1038 307 197 43.6439 82.4422 1078 300 206 43.8584 82.6652
28096 1079 316 203 43.7941 82.1347
28101 1084 398 188 43.4386 79.4998
28102 1085 414 185 43.3607 78.9765
28267 1110 160 234 44.4957 87.1855
28268 1111 177 232 44.4510 86.6454
28274 1117 276 218 44.1336 83.4232
28275 1118 293 215 44.0725 82.8896
28276 1119 309 213 44.0092 82.3571
28277 1120 326 210 43.9435 81.8258
28282 1125 407 194 43.5813 79.1867
28283 1126 424 191 43.5022 78.6627
28284 1127 440 187 43.4208 78.1401
28285 1128 456 184 43.3372 77.6188
28448 1151 169 241 44.6576 86.8854
28449 1152 186 239 44.6116 86.3441
28455 1158 286 225 44.2862 83.1156
28456 1159 302 222 44.2238 82.5811
28457 1160 319 219 44.1592 82.0476
28463 1166 417 200 43.7233 78.8723
28464 1167 433 197 43.6428 78.3476
28465 1168 449 193 43.5601 77.8242
28466 1169 466 190 43.4752 77.3022
28467 1170 482 186 43.3881 76.7817
28627 1190 145 252 44.9062 87.6710
28628 1191 162 250 44.8637 87.1269
28629 1192 178 248 44.8187 86.5837
28636 1199 295 231 44.4381 82.8065
28637 1200 312 228 44.3744 82.2710
28638 1201 328 226 44.3084 81.7367
28644 1207 427 206 43.8645 78.5564
28645 1208 443 203 43.7827 78.0310
28646 1209 459 199 43.6986 77.5070
28647 1210 475 196 43.6124 76.9844
28648 1251 485 201 43.7488 76.6652 1211 492 192 43.5240 76.4632
28808 1231 154 259 45.0693 87.3701
28809 1232 171 257 45.0254 86.8248
28810 1233 188 255 44.9792 86.2804
28816 1239 288 240 44.6519 83.0334
28817 1240 305 238 44.5892 82.4959
28818 1241 322 235 44.5241 81.9595
28819 1242 338 232 44.4568 81.4242
28826 1249 453 209 43.9217 77.7131
28827 1250 469 205 43.8363 77.1884
28828 1251 485 201 43.7488 76.6652
28989 1353 165 282 45.5996 87.0075 1272 163 266 45.2317 87.0676
28990 1273 180 264 45.1865 86.5212
28991 1233 188 255 44.9792 86.2804 1274 197 262 45.1389 85.9756
28992 1275 214 260 45.0889 85.4309
28996 1279 281 250 44.8653 83.2619
28997 1280 298 247 44.8036 82.7223
28998 1281 315 244 44.7395 82.1838
28999 1282 331 241 44.6731 81.6465
29008 1291 479 211 43.9732 76.8685
29009 1251 485 201 43.7488 76.6652 1292 495 207 43.8843 76.3446
29169 1353 165 282 45.5996 87.0075 1312 156 275 45.4374 87.3120
29170 1313 173 273 45.3933 86.7635
29171 1314 190 271 45.3468 86.2159
29172 1315 207 269 45.2978 85.6692
29177 1320 291 256 45.0176 82.9502
29178 1321 308 254 44.9545 82.4096
29179 1322 324 251 44.8890 81.8702
29180 1363 334 257 45.0378 81.5551 1323 341 248 44.8213 81.3320
29181 1324 358 245 44.7512 80.7950
29182 1325 374 242 44.6789 80.2592
29189 1332 489 217 44.1093 76.5472
29350 1353 165 282 45.5996 87.0075
29351 1354 182 280 45.5542 86.4579
29352 1355 199 278 45.5063 85.9091
29353 1356 216 276 45.4560 85.3612
29357 1360 284 266 45.2311 83.1797
29358 1361 301 263 45.1690 82.6370
29359 1362 317 260 45.1045 82.0955
29360 1363 334 257 45.0378 81.5551
29361 1324 358 245 44.7512 80.7950 1364 351 254 44.9687 81.0160
29362 1365 367 251 44.8973 80.4781
29363 1406 377 258 45.0425 80.1598 1366 384 248 44.8236 79.9416
29531 1394 175 289 45.7611 86.7014
29532 1395 192 287 45.7143 86.1506
29533 1355 199 278 45.5063 85.9091 1396 209 285 45.6651 85.6006
29534 1437 218 292 45.8231 85.2906 1397 226 283 45.6134 85.0516
29536 1399 260 278 45.5030 83.9567
29537 1400 277 275 45.4443 83.4107
29538 1401 293 272 45.3831 82.8659
29539 1402 310 270 45.3197 82.3223
29540 1403 327 267 45.2538 81.7798
29541 1404 344 264 45.1857 81.2385
29542 1405 361 261 45.1152 80.6985
29543 1406 377 258 45.0425 80.1598
29712 1395 192 287 45.7143 86.1506 1435 184 296 45.9218 86.3937
29713 1436 201 294 45.8736 85.8417
29714 1437 218 292 45.8231 85.2906
29715 1437 218 292 45.8231 85.2906 1438 235 290 45.7701 84.7405
29716 1439 252 287 45.7147 84.1914
29717 1440 269 285 45.6570 83.6434
29718 1441 286 282 45.5968 83.0964
29719 1442 303 279 45.5344 82.5506
29720 1443 320 276 45.4695 82.0060
29721 1444 337 273 45.4024 81.4626
29722 1445 354 270 45.3328 80.9205
29723 1446 370 267 45.2610 80.3796
29896 1479 245 297 45.9260 84.4277
29897 1480 262 294 45.8693 83.8776
29898 1481 279 291 45.8101 83.3285
29899 1482 296 289 45.7487 82.7806
29901 1525 340 289 45.7669 81.3689 1484 330 283 45.6186 81.6882
29902 1485 347 280 45.5501 81.1439
29903 1486 364 277 45.4792 80.6009
30078 1562 282 308 46.1760 83.2452 1521 272 301 46.0230 83.5622
30079 1562 282 308 46.1760 83.2452 1522 289 298 45.9625 83.0121
30080 1563 299 305 46.1141 82.6941 1523 306 295 45.8997 82.4631
30082 1525 340 289 45.7669 81.3689
30083 1526 357 286 45.6970 80.8237
30246 1549  57 334 46.7595 90.4993
30252 1555 161 324 46.5416 87.1330
30259 1562 282 308 46.1760 83.2452
30260 1563 299 305 46.1141 82.6941
30261 1563 299 305 46.1141 82.6941 1564 316 302 46.0499 82.1441
30262 1525 340 289 45.7669 81.3689 1565 333 299 45.9833 81.5954
30263 1525 340 289 45.7669 81.3689 1566 350 296 45.9143 81.0480
30425 1588  32 344 46.9848 91.3269
30426 1630  59 351 47.1288 90.4587 1589  49 343 46.9583 90.7615
30427 1590  67 342 46.9294 90.1967
30428 1591  84 340 46.8979 89.6326
30432 1595 154 333 46.7472 87.3828
30433 1596 171 331 46.7033 86.8224
30437 1640 233 332 46.7140 84.8306 1600 240 322 46.5034 84.5899
30606 1629  41 352 47.1566 91.0255
30607 1630  59 351 47.1288 90.4587
30608 1631  76 349 47.0985 89.8924
30609 1632  94 348 47.0657 89.3268
30611 1634 128 344 46.9926 88.1977
30612 1635 146 343 46.9523 87.6343
30613 1636 163 341 46.9095 87.0717
30614 1637 181 339 46.8643 86.5100
30615 1638 198 336 46.8166 85.9493
30616 1639 215 334 46.7665 85.3894
30617 1640 233 332 46.7140 84.8306
30787 1670  50 360 47.3277 90.7224
30788 1671  68 358 47.2986 90.1541
30789 1672  86 357 47.2669 89.5864
30790 1673 103 355 47.2328 89.0194
30792 1675 138 352 47.1569 87.8875
30793 1676 156 350 47.1153 87.3228
30794 1677 173 348 47.0711 86.7590
30795 1678 190 346 47.0246 86.1960
30796 1679 208 344 46.9755 85.6340
30797 1680 225 341 46.9240 85.0730
30798 1640 233 332 46.7140 84.8306 1681 242 339 46.8701 84.5131
30968 1711  60 367 47.4981 90.4175
30969 1712  77 366 47.4676 89.8477
30970 1713  95 365 47.4346 89.2786
30971 1714 113 363 47.3991 88.7102
30973 1716 148 359 47.3205 87.5756
30974 1717 165 357 47.2775 87.0096
30975 1718 183 355 47.2320 86.4445
30976 1719 200 353 47.1840 85.8803
30977 1720 218 351 47.1336 85.3171
30978 1721 235 348 47.0807 84.7550
31149 1752  69 375 47.6678 90.1108
31150 1753  87 374 47.6359 89.5396
31151 1754 105 372 47.6016 88.9690
31152 1755 122 371 47.5647 88.3992
31153 1756 140 369 47.5252 87.8302
31154 1757 157 367 47.4833 87.2620
31155 1758 175 365 47.4389 86.6947
31156 1759 193 363 47.3921 86.1283
31157 1760 210 360 47.3427 85.5629
31158 1761 227 358 47.2909 84.9985
31330 1793  79 383 47.8367 89.8023
31331 1794  97 381 47.8035 89.2296
31332 1795 114 380 47.7678 88.6577
31333 1796 132 378 47.7295 88.0865
31334 1797 150 376 47.6887 87.5161
31335 1798 167 374 47.6454 86.9466
31336 1799 185 372 47.5996 86.3780
31337 1800 202 370 47.5513 85.8104
31338 1801 220 368 47.5006 85.2438
31511 1793  79 383 47.8367 89.8023 1834  88 391 48.0049 89.4921
31512 1794  97 381 47.8035 89.2296 1835 106 389 47.9703 88.9179
31513 1836 124 387 47.9332 88.3446
31514 1837 142 386 47.8935 87.7720
31515 1838 159 384 47.8514 87.2003
31516 1839 177 382 47.8067 86.6295
31517 1840 195 379 47.7595 86.0597
31518 1841 212 377 47.7099 85.4908
31692 1793  79 383 47.8367 89.8023 1875  98 399 48.1724 89.1800
31693 1794  97 381 47.8035 89.2296 1876 116 397 48.1364 88.6045
31694 1877 134 395 48.0979 88.0297
31695 1878 151 393 48.0568 87.4558
31696 1879 169 391 48.0133 86.8827
31697 1880 187 389 47.9672 86.3106
31698 1840 195 379 47.7595 86.0597 1881 205 387 47.9186 85.7395
31699 1882 222 384 47.8676 85.1694
31873 1917 126 405 48.3017 88.2892 1916 108 406 48.3391 88.8661
31874 1917 126 405 48.3017 88.2892
31875 1918 143 403 48.2618 87.7130
31876 1919 161 401 48.2194 87.1377
31877 1920 179 399 48.1744 86.5634
32054 1917 126 405 48.3017 88.2892 1957 118 414 48.5050 88.5505
32055 1958 135 412 48.4663 87.9721
32056 1959 153 410 48.4250 87.3946
32057 1960 171 408 48.3811 86.8179
32058 1961 189 406 48.3348 86.2423
32235 1958 135 412 48.4663 87.9721 1998 127 422 48.6702 88.2330
32236 1999 145 420 48.6300 87.6532
32237 2000 163 418 48.5873 87.0743
32238 2001 181 416 48.5421 86.4963
32416 1999 145 420 48.6300 87.6532 2039 137 429 48.8346 87.9136
32417 1999 145 420 48.6300 87.6532 2040 155 428 48.7930 87.3324
32418 2041 173 425 48.7489 86.7522