Data Sources for the Contours(NC = no contours) | |||
|---|---|---|---|
| Map IDs | Scale at which contours were created | Raw data IDs | Year(s) raw data collected |
| 1 | 1:50,000 | NOS digital data | 1941, 1948, 1982-85, 1987 |
| *2 | variable | NOS digital data | 1948 |
| *3 | variable | CHS Multibeam data | ? |
| *4 | variable | CHS Multibeam data | ? |
| 5 | 1:5000 | CHS 8392 | 1974, 1989 |
| 6 | 1:2500 | CHS 8224 | 1984 |
| 7 | 1:25,000 | CHS 8306 | 1986 |
| 8 | ? | CHS digital contours | ? |
| 9 | 1:1000 | CHS 8188 | 1983 |
| 10 | 1:2500 | CHS 8189 | 1983 |
| 11 | 1:2500 | CHS 8191 | 1983 |
| 12 | 1:2500 | CHS 8193 | 1983 |
| 13 | 1:25,000 | CHS 8383 | 1989 |
| 14 | ? | CHS digital contours | ? |
| 15 | 1:25,000 | CHS 8385 | 1989 |
| 16 | 1:10,000 | CHS 3527 | 1967 |
| 17 | 1:25,000 | CHS 3526 | 1967 |
| 18 | 1:25,000 | CHS 8386 | 1989 |
| 19 | 1:25,000 | CHS 8387 | 1989 |
| 20 | 1:25,000 | CHS 1200037 | 1991 |
| 21 | 1:25,000 | CHS 1200035 | 1991 |
| 22 | 1:30,000 | CHS 8019 | 1979 |
| 23 | 1:25,000 | CHS 1200036 | 1991 |
| 24 | 1:20,000 | CHS 8024 | 1979 |
| 25 | 1:20,000 | CHS 8024, NOS digital data | 1979, 1948 |
| 26 | 1:10,000 | CHS 8078 | 1981 |
| 27 | 1:15,000 | CHS 8294 | 1986 |
| 28 | 1:10,000 | CHS 8079 | 1981 |
| 29 | 1:15,000 | CHS 8080 | 1981 |
| 30 | 1:15,000 | CHS 8293 | 1986 |
| 31 | 1:12,000 | CHS 2338 | 1952 |
| 32 | 1:2500 | CHS 8217 | 1984 |
| 33 | 1:10,000 | CHS 8358 | 1988 |
| 34 | 1:10,000 | CHS 8357 | 1988 |
| 35 | 1:2500 | CHS 8218 | 1984 |
| 36 | 1:1000 | CHS 8219 | 1984 |
| 37 | 1:10,000 | CHS 8355 | 1988 |
| 38 | 1:10,000 | CHS 8356 | 1988 |
| 39 | 1:5000 | CHS 8350 | 1988 |
| 40 | 1:5000 | CHS 8351 | 1988 |
| 41 | 1:2500 | CHS 8213 | 1984 |
| 42 | 1:1000 | CHS 8214 | 1984 |
| 43 | 1:5000 | CHS 8352 | 1988 |
| 44 | 1:5000 | CHS 8353 | 1988 |
| 45 | 1:10,000 | CHS 8354 | 1988 |
| 46 | 1:10,000 | CHS 8359 | 1988 |
| 47 | 1:10,000 | CHS 8360 | 1988-89 |
| 48 | 1:10,000 | CHS 8381 | 1989 |
| 49 | 1:2500 | CHS 8220 | 1984-85 |
| 50 | 1:1000 | CHS 8221 | 1985 |
| 51 | 1:10,000 | CHS 8382 | 1989 |
| 52 | 1:6000 | CHS 3091 | 1961 |
| 53 | 1:10,000 | CHS 3552 | 1968 |
| 54 | 1:10,000 | NOS digital data | 1941, 1985, 1987 |
| 55 | 1:20,000 | NOS L1255, L1256, L1257 | not digitized 1912 |
| 56 | 1:15,000 | NOS digital data | 1941, 1948 |
| *57 | 1:80,000 | NOS charts | 1990 |
| *58 | 1:10,000 | NOS chart | 1990 |
| 59 | variable | NOS digital data | 1948 |
| 60 | 1:25,000 | CHS 8396 | 1988-90 |
| 61 | 1:2000 | CHS 1200019 | 1990-91 |
| 62 | 1:25,000 | CHS 8370 | 1987-88 |
| 63 | 1:25,000 | CHS 8304 | 1986 |
| 64 | 1:25,000 | CHS 8305 | 1986 |
| 65 | 1:2500 | CHS 8338 | 1987 |
| *66 | variable | all data | 1912-91 |
*Notes
*66 This value represents some of the interpolated contours that are found throughout the lake but are not identified on the data source map. However, they are identified in the contour.e00 file.
*2 Some of these contours, which were created throughout the lake at variable scales using this raw data and raw data in 1, are not identified on the data source map. However, they are identified in the contour.e00 file.
*Titles for the NOS charts all published at Washington, D.C., U.S. Department of Commerce, NOAA/NOS, Coast and Geodetic Survey, are listed below (Polyconic Projections):
57 1993, scale 1:80,000, Port Bay to Long Pond, #14804
57 1992, scale 1:80,000, Six Miles South of Stony Point to Port Bay, #14803
58 1990, scale 1:10,000, Rochester Harbor, #14815
*The gridded datasets used to create the contours which were then manually edited at various scales are:
4 45 and 90 meter gridded files
3 15 meter gridded file