Hydrology Calibration Sample Clauses

Hydrology Calibration. Hydrology was the first model component calibrated. The hydrology calibration involved a comparison of model results to in-stream flow observations at selected locations and the subsequent adjustment of hydrologic parameters. Key considerations included the overall water balance, the high-flow low-flow distribution, storm flows, and seasonal variation. In order to best represent hydrologic variability throughout the watershed, three locations with daily flow monitoring data were selected for calibration. The stations were USGS 03204000 Guyandotte at Branchland, USGS 03203600 Guyandotte at Xxxxx, and USGS 03202750 Clear Fork at Clear Fork. The model was calibrated at these three locations for water years 1994 and 1995 by running the model over a calibration time period of 10/1/1993 - 9/30/1995. Flow-frequency curves, temporal comparisons (daily and monthly), and comparisons of high flows and low flows were developed to support calibration. The calibration involved adjustment of infiltration, subsurface storage, evapotranspiration, surface runoff, and interception storage parameters. After adjusting the appropriate parameters within acceptable ranges, good correlations were found between model results and observed data for the comparisons made. Flow-frequency curves and temporal analyses are presented in Appendix F. Hydrology calibration statistics are shown in Table 4-11. Parameter values were validated for an independent, extended time period (10/1/1983 through 9/30/1993) after calibrating parameters at the stations. The station chosen for validation was USGS 0320400 Guyandotte at Branchland. Validation involved comparison of model results and flow observations without further adjustment of parameters. The validation comparisons also showed a good correlation between modeled and observed data. Figure 4-4 presents a monthly summary of validation results. Refer to Appendix F for more detailed validation results. Table 4-11. Comparison of simulated and observed flow for water years 1994 and 1995 (USGS 03203600) Simulated versus Observed Flow Percent Error Recommended Criterion1 Error in total volume 12.49 +/- 10% Error in 50% lowest flows 32.94 +/- 10% Error in 10% highest flows -3.43 +/- 15% Seasonal volume error - Summer 26.14 +/- 30% Seasonal volume error - Fall 28.77 +/- 30% Seasonal volume error - Winter 1.20 +/- 30% Seasonal volume error - Spring 18.62 +/- 30% Error in storm volumes -17.58 +/- 20% Error in xxxxxx xxxxx volumes -14.48 +/- 50% 1 Recommend...
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Related to Hydrology Calibration

  • Calibration The comparison of a measurement system or device of unverified accuracy with a measurement system of known and greater accuracy to detect deviation of the unverified measurement system from required performance specifications (of the unverified measurement system or device) and to quantify all measured values to applicable units of the international system of units.

  • Geotechnical 19 The A/E as required shall review past pavement, soil 20 and geology investigations, discuss past findings as 21 impacting the subject roadway project, and independently 22 perform design-needed geotechnical services including 23 development and implementation of a field investigation plan 24 involving any field data collection as deemed necessary, 25 development of a laboratory testing program to conduct soils 26 surface and subsurface characterization tests as applicable 1 to the needs of the project, development of seismic analysis 2 and design criteria in accordance with code requirements, 3 development of pavement condition studies to provide 4 recommendations concerning life cycle costs and 5 rehabilitation/reconstruction methods, and recommendations 6 for the design of foundations, embankment and excavation 7 procedures, settlement analysis, lateral, active, and passive 8 earth pressures, de-watering, landslide mapping, slope 9 stabilization, soil corrosion, erosion, sedimentation control 10 and other applicable design criteria as deemed necessary.

  • Testing Landlord shall have the right to conduct annual tests of the Premises to determine whether any contamination of the Premises or the Project has occurred as a result of Tenant’s use. Tenant shall be required to pay the cost of such annual test of the Premises; provided, however, that if Tenant conducts its own tests of the Premises using third party contractors and test procedures acceptable to Landlord which tests are certified to Landlord, Landlord shall accept such tests in lieu of the annual tests to be paid for by Tenant. In addition, at any time, and from time to time, prior to the expiration or earlier termination of the Term, Landlord shall have the right to conduct appropriate tests of the Premises and the Project to determine if contamination has occurred as a result of Tenant’s use of the Premises. In connection with such testing, upon the request of Landlord, Tenant shall deliver to Landlord or its consultant such non-proprietary information concerning the use of Hazardous Materials in or about the Premises by Tenant or any Tenant Party. If contamination has occurred for which Tenant is liable under this Section 30, Tenant shall pay all costs to conduct such tests. If no such contamination is found, Landlord shall pay the costs of such tests (which shall not constitute an Operating Expense). Landlord shall provide Tenant with a copy of all third party, non-confidential reports and tests of the Premises made by or on behalf of Landlord during the Term without representation or warranty and subject to a confidentiality agreement. Tenant shall, at its sole cost and expense, promptly and satisfactorily remediate any environmental conditions identified by such testing in accordance with all Environmental Requirements. Landlord’s receipt of or satisfaction with any environmental assessment in no way waives any rights which Landlord may have against Tenant.

  • Geotechnical Engineer « »« » « » « » « » « »

  • Engineering Forest Service completed survey and design for Specified Roads prior to timber sale advertisement, unless otherwise shown in A8 or Purchaser survey and design are specified in A7. On those roads for which Forest Service completes the design during the contract, the design quantities shall be used as the basis for revising estimated costs stated in the Schedule of Items and adjusting Timber Sale Account. Forest Service engineering shall be completed according to the schedule in A8. Should Forest Service be unable to perform the designated survey and design by the completion date or other agreed to time, upon written agreement, Purchaser shall assume responsibility for such work. In such event, Contracting Officer shall revise:

  • Commissioning Commissioning tests of the Interconnection Customer's installed equipment shall be performed pursuant to applicable codes and standards. If the Interconnection Customer is not proceeding under Section 2.3.2, the Utility must be given at least ten (10) Business Days written notice, or as otherwise mutually agreed to by the Parties, of the tests and may be present to witness the commissioning tests.

  • Synchronization, Commissioning and Commercial Operation 4.1.1 The Power Producer shall give at least thirty (30) days written notice to the SLDC and GUVNL, of the date on which it intends to synchronize the Power Project to the Grid System.

  • Reverse Engineering The Customer must not reverse assemble or reverse compile or directly or indirectly allow or cause a third party to reverse assemble or reverse compile the whole or any part of the software or any products supplied as a part of the Licensed System.

  • Geological and Archeological Specimens If, during the execution of the Work, the Contractor, any Subcontractor, or any servant, employee, or agent of either should uncover any valuable material or materials, such as, but not limited to, treasure trove, geological specimens, archival material, archeological specimens, or ore, the Contractor acknowledges that title to the foregoing is vested in the Owner. The Contractor shall notify the Owner upon the discovery of any of the foregoing, shall take reasonable steps to safeguard it, and seek further instruction from the Design Professional. Any additional cost incurred by the Contractor shall be addressed under the provision for changed conditions. The Contractor agrees that the Geological and Water Resources Division and the Historic Preservation Division of the Georgia Department of Natural Resources may inspect the Work at reasonable times.

  • Sampling The Licensee agrees that the Composition is purchased as a “Work Made for Hire” whereby the clearing of any sampled materials is the responsibility of Licensee.

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