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Top and bottom layer height (H) in Bathymetry File

Mon, 04/21/2003 - 9:02am — vijay_ua
Hi, I am using an already running model from a previous user for Beaver Lake. I have two doubts 1) What is the exact point, which WSEL refer? Is it layer 1 (top boundary cells) top surface or layer 2 top, which is the actual water surface? 2) May I use height H of top and bottom boundary cells zero like we use zero width of inactive cells? Can you help me? Thanks Vijay [addsig]
Forums: 
Hydrodynamics
Thu, 04/24/2003 - 1:01pm — Tom

Vijay, The bottom elevation specified in the control file is based on the top of layer KMX or the bottom of layer KMX-1. WSEL is then based on some reference datum. For example, if EBOT is set to 0, then setting WSEL to 10 m means that the greatest depth in the system is 10 m. As for your second question, this is addressed quite thoroughly in the User's Manual and all of the examples. The top boundary layer (layer 1) has widths set to 0. All computational cells below the bottom active cell in a given segment also have zero widths, which includes zero widths for layer KMX. Tom[addsig]
Sun, 04/27/2003 - 2:19pm — vijay_ua

Tom, Thanks! Perhaps I could not explain my second question clearly. I try again. Can we set height (H) of layer 1 and layer KMX as 0? Vijay [addsig]
Tue, 04/29/2003 - 11:49am — Tom

Vijay, You may be able to do that, but I would set them to mirror the layer height of layer 2 and layer KMX-1, which is what the code requires.[addsig]
Fri, 10/19/2007 - 6:48am — nadiasalem24

I am sorry to have to paste the entire bathymetry file in here but I wanted to see by example how EBOT is estimated. The control file that goes with this bathymetry file has EBOT as 422.100. Can any one show me how they came up with this number? This is the example provided in v3.2 files. Thanks. Nadia Long Lake Reservoir bathymetry Segment length [DLX] 1487.0 1487.0 1666.0 1073.0 1073.0 1073.0 1072.6 1072.6 1072.6 1073.0 1073.0 1073.0 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1072.6 1070.8 1070.8 1070.8 1070.8 Water surface elevation [ELWS] 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 467.99 Segment orientation [PHI0] 3.465 3.456 3.098 1.995 1.365 0.875 1.803 2.222 2.520 2.660 2.590 2.135 1.610 2.363 2.730 2.888 3.063 3.028 2.888 1.663 0.910 0.438 0.210 0.035 0.613 0.910 0.875 0.910 1.488 1.260 0.630 0.875 1.575 2.205 2.503 2.188 2.188 MANNINGS 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.035 Layer height [H] 10.01 10.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 1.01 Segment 1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 2 0.0 72.7 67.5 62.2 5.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 3 0.0 150.1 129.0 107.8 88.6 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 4 0.0 222.9 186.6 150.2 123.5 105.6 87.8 71.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 5 0.0 468.0 362.4 256.6 187.3 150.8 114.3 83.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 6 0.0 490.9 437.8 384.8 338.6 299.2 259.6 209.9 150.5 90.8 46.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 7 0.0 364.8 349.7 334.5 308.3 271.3 234.2 191.9 144.6 97.1 59.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 8 0.0 371.9 361.0 350.0 321.7 276.6 231.6 189.5 150.4 111.2 78.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 9 0.0 482.0 439.8 397.6 342.6 275.5 208.2 157.2 120.9 84.5 54.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 10 0.0 419.4 390.2 360.9 323.7 278.8 233.9 201.3 180.4 159.4 128.6 88.5 48.0 20.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 11 0.0 411.0 383.2 355.4 326.9 297.7 268.6 241.5 216.3 191.1 156.1 111.6 66.9 34.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 12 0.0 482.4 455.2 427.9 401.6 376.0 350.5 321.6 289.4 257.2 223.4 188.1 152.7 120.5 91.4 62.1 38.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 13 0.0 856.0 797.2 738.4 672.0 598.2 524.5 444.3 358.2 271.9 214.0 182.5 151.0 126.0 107.3 88.5 69.2 49.3 29.3 14.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 14 0.0 598.7 552.0 505.3 460.9 418.8 376.7 337.0 299.8 262.6 234.6 215.4 196.3 180.6 168.2 155.8 131.9 97.0 61.9 35.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 15 0.0 637.2 551.5 465.6 404.3 366.3 328.3 295.5 267.8 240.0 214.1 189.8 165.5 148.3 137.7 127.2 112.1 92.8 73.4 56.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 16 0.0 350.8 330.5 310.3 293.8 281.2 268.5 255.0 240.5 226.0 208.6 188.5 168.3 151.5 137.8 124.1 111.2 99.0 86.7 75.3 64.7 54.1 44.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 17 0.0 322.7 305.3 288.0 273.0 260.5 247.9 236.1 225.1 214.0 201.1 186.4 171.8 159.5 149.5 139.5 126.4 110.5 94.5 81.7 71.9 62.1 53.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 18 0.0 452.4 433.6 414.7 400.1 389.7 379.2 365.5 348.5 331.4 308.2 279.0 249.7 227.0 210.7 194.3 178.3 162.6 146.9 127.3 103.6 80.0 59.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 19 0.0 658.1 631.6 605.2 578.9 552.8 526.8 497.4 464.7 432.0 396.0 356.9 317.7 286.9 264.2 241.5 217.0 190.9 164.7 138.6 112.5 86.4 64.3 46.0 27.5 14.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 20 0.0 783.6 739.6 695.7 659.6 631.0 602.4 557.3 496.1 435.0 379.6 329.7 279.9 247.3 231.3 215.3 200.9 188.0 175.1 158.1 137.3 116.5 95.6 74.6 53.6 36.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 21 0.0 707.1 651.6 596.1 561.9 548.7 535.4 519.2 500.1 481.0 457.0 428.2 399.4 364.5 323.9 283.2 257.8 247.3 236.8 220.0 197.0 174.1 146.7 114.9 83.1 56.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 22 0.0 514.3 499.1 483.9 469.4 455.5 441.6 425.6 407.4 389.2 369.6 348.6 327.7 306.4 284.7 263.0 244.4 228.7 213.0 197.1 181.1 165.0 145.1 121.4 97.7 78.2 62.6 47.1 33.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 23 0.0 357.6 346.3 335.0 323.6 311.9 300.3 288.5 276.5 264.6 251.9 238.6 225.3 210.6 194.4 178.2 165.6 156.3 147.0 134.7 119.6 104.4 93.1 85.4 77.8 69.9 61.8 53.7 46.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 24 0.0 565.5 551.5 537.5 525.1 514.1 503.2 492.1 480.9 469.7 457.9 445.4 432.9 419.0 403.5 388.1 355.7 306.6 257.5 224.8 207.6 190.4 174.3 159.3 144.3 127.6 109.3 90.9 74.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 25 0.0 363.3 355.7 348.2 340.3 332.2 324.0 316.9 310.6 304.4 298.0 291.3 284.6 277.6 270.4 263.1 251.5 235.6 219.8 207.5 198.7 189.9 179.5 167.4 155.3 142.3 128.2 114.2 100.6 87.5 74.3 57.2 36.6 15.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 26 0.0 357.9 345.5 333.1 324.1 318.5 312.8 307.3 302.0 296.6 291.0 285.0 279.0 273.2 267.6 261.9 254.4 245.2 236.0 221.1 200.7 180.2 163.8 151.2 138.7 128.6 121.0 113.4 106.2 99.3 92.4 78.7 58.5 38.3 22.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 27 0.0 410.4 398.5 386.6 378.0 372.7 367.4 361.0 353.7 346.3 339.8 334.1 328.4 323.2 318.5 313.8 306.5 296.5 286.6 270.3 247.7 225.1 207.8 195.7 183.5 167.7 148.2 128.8 114.7 105.8 96.9 82.4 62.5 42.6 26.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 28 0.0 526.4 508.8 491.3 477.3 466.9 456.4 448.0 441.8 435.6 427.7 418.4 409.0 399.3 389.3 379.3 368.4 356.6 344.8 327.7 305.4 283.1 262.3 243.0 223.6 207.2 193.4 179.7 164.3 147.3 130.2 108.6 82.5 56.3 35.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 29 0.0 848.2 832.2 816.2 803.7 794.7 785.7 775.6 764.4 753.3 743.0 733.8 724.5 711.5 694.7 678.0 660.4 642.1 623.8 606.0 588.8 571.5 542.6 502.3 462.0 420.6 377.9 335.3 291.7 247.4 202.9 162.0 124.1 86.2 55.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 30 0.0 465.5 451.9 438.3 426.6 416.9 407.1 397.2 387.1 377.0 367.8 359.5 351.3 340.5 327.3 314.1 301.4 289.2 276.9 265.1 253.8 242.5 230.2 217.0 203.7 187.8 169.4 150.9 132.1 112.9 93.7 77.6 64.4 51.1 39.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 31 0.0 631.9 617.4 602.9 588.0 572.5 557.0 545.7 538.5 531.3 524.0 516.5 508.9 500.5 491.3 482.0 472.3 462.3 452.4 442.5 432.7 423.0 411.0 396.9 382.8 359.5 327.0 294.6 259.6 222.1 184.7 156.2 136.1 116.1 95.9 75.6 55.2 38.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Segment 32 0.0 882.0 870.3 858.6 847.4 836.6 825.8 815.2 804.7 794.3 784.1 774.2 764.4 730.9 674.3 617.6 572.7 539.1 505.5 483.8 473.8 463.8 453.1 441.9 430.6 411.1 383.5 355.8 324.4 289.2 254.0 229.8 216.4 203.0 190.2 178.2 166.2 139.7 99.3 58.6 29.1 0.0 0.0 0.0 0.0 0.0 0.0 Segment 33 0.0 1035.0 1013.9 992.8 970.6 947.5 924.4 901.4 878.3 855.2 833.9 814.1 794.4 742.5 659.3 576.1 518.6 486.0 453.3 432.5 423.4 414.2 405.2 396.4 387.6 375.9 361.4 346.9 330.5 312.3 294.2 275.9 257.4 238.9 219.5 199.3 179.1 159.0 139.1 119.2 99.6 80.2 60.8 42.5 0.0 0.0 0.0 Segment 34 0.0 1003.2 980.7 958.2 932.9 905.0 877.1 852.8 832.1 811.4 791.3 771.8 752.3 735.8 722.2 708.7 689.3 664.0 638.7 619.9 607.7 595.5 582.5 568.6 554.7 537.8 518.1 498.3 453.8 385.2 316.6 273.5 254.5 235.5 217.0 198.9 180.8 162.9 145.3 127.7 109.5 90.8 72.0 55.5 0.0 0.0 0.0 Segment 35 0.0 819.0 797.6 776.1 757.9 743.0 728.0 710.1 689.3 668.5 650.0 633.8 617.6 600.1 581.2 562.4 544.4 527.3 510.2 494.5 480.2 465.9 451.7 437.7 423.8 410.3 397.5 384.7 343.1 273.7 204.2 165.2 154.5 143.9 134.7 127.0 119.3 109.9 99.0 88.0 76.9 65.8 54.6 44.5 0.0 0.0 0.0 Segment 36 0.0 624.1 607.7 591.3 576.2 562.3 548.4 534.3 520.1 505.8 491.8 478.0 464.2 450.9 438.1 425.3 411.9 397.7 383.5 369.4 355.4 341.4 328.4 316.5 304.6 292.1 278.8 265.6 250.7 234.3 217.9 204.0 192.6 181.2 171.2 162.5 153.8 145.7 137.9 130.2 122.0 113.3 104.6 99.9 98.9 98.0 0.0 Segment 37 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Tue, 10/23/2007 - 9:18am — Rob

EBOT is declared in the control file along with the slope of any branches in the model by the model user. The EBOT correponds to the bottom elevation of the furthest downstream segment. Here it would be Seg 36 at the bottom most active layer which has a widths of 98.0 meters. Based on the slope in the control file for the branch the bottom elevation for the upstream segments is then calcualted and then the elevations increase vertically upward for each segment based on the layer thicknesses specified in the bathymetry file above (1.01 m and 10.01 m). The W2 GUI shows all of the layer elevations when you click on the bth button at the top and then the dataview button. This is after you have loaded the control file in the GUI. I hope this helps. Cheers, Rob