Hydrologic unit definition

Hydrologic unit means a surface drainage area or a ground water basin or a combination of the two.
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Hydrologic unit means an area of land above or upstream from a specific point on a stream, which is enclosed by a topographic divide such that direct surface runoff from precipitation normally drains by gravity into the stream or the area above the specified point on a stream.
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Hydrologic unit means a hydrologic subregion established by the United States Department of the Interior, Geological Survey, on the “Hydrologic Unit Map-1987, State of Alaska”; “hydrologic unit” includes the water of an ocean that is adjacent to a hydrologic subregion of the state.
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Examples of Hydrologic unit in a sentence

  • There may be some flow (less than an average 100 acre-feet per year) from the Lucerne Hydrologic unit into the Upper Mojave River Hydrologic Subunit in the South Lahontan Basin.

  • Hydrologic unit is a geographic area representing part or all of a surface drainage basin or distinct hydrologic feature as defined by the former Office of Water Data Coordination and delineated on the State Hydrologic Unit Maps by the USGS.

  • Hydrologic unit codes are a way of identifying all of the drainage basins in the United States in a nested arrangement from largest (regions) to smallest (cataloging units).

  • Variable Time period/scale a Hydrologic unit code; a sixth-code HUC is a subwatershed.b Historical range of variability.Appendix 2Coarse-, mid-, and fine-scale data used in cluster and ordination analysis to develop rationale to assign a similarity index to the 299 unique combinations of the three input variables (landscape management pattern, landscape vegetation pattern, and potential vegetation group pattern; see table 2) are listed.

  • Hydrologic unit codes are a way of identifying all of the drainage basins in the United States in a nested arrangement from largest (Regions) to smallest (Cataloging Units).

  • Abbreviations AIC Akaike Information Criterion CI Confidence interval HYSPLIT4 HYbrid Single-Particle Lagrangian Integrated Trajectory HUC Hydrologic unit code KY Kentucky LBW Low birthweight MAE Mean adjusted error MGY Majority gestation year OR Odds ratio PTB Pre-term birth RMSE Root mean square error TLBW Term low birthweight TN Tennessee VA Virginia WV West Virginia Figures Figure 1 Study area (red) and surface mining coal production (thousand tons) at the county level for 1993 (top) and 2015 (bottom).

  • In 1970, depth to ground water ranged from flow at the surface to 445 feet in the Copper Mountain hydrologic unit.There may be some flow (less than an average 100 acre-feet per year) from the Lucerne Hydrologic unit into the Upper Mojave River Hydrologic Subunit in the South Lahontan Basin.

  • BUSINESS & OPERATIONSRESOLVED, that the Board of Education approves the District Wide Safety Plan for the 2023-2024 school year.

  • During the interim, full itemization will be provided to all other business customers upon request.NOTE 4: E-mail confirmation will only apply where facilities and/or operating conditions permit.(N)(N)ContinuedAT&T California SCHEDULE CAL.P.U.C. NO.

  • Hydrologic unit codes (HUC) are two to twelve-digit codes based on the four levels of classification in a hydrologic unit system, as described in Seaber et al.


More Definitions of Hydrologic unit

Hydrologic unit means a defined area from which water rights authorizing diversion of water from a source of supply may be deposited and from which water from the same source of supply may be leased, in accordance with the provisions of this act, without causing impairment of existing water rights or a significantly different hydrological effect to other users of water from the same source or hydraulically connected sources of supply.
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Hydrologic unit means watershed boundaries as shown on the U.S. Geological Survey's Hydrologic Unit Map of Kentucky.
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Hydrologic unit means any geographic area drained by a river system, a reach of a river and its tributaries in that reach, a closed basin(s), or a group of streams forming a coastal drainage basin. Hydrologic units are divided into size classifications, or fields, as defined by USGS codes, where the first field, such as the Columbia Basin, is a region.
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Hydrologic unit means a defined land area drained by a river/stream or system of connecting rivers/streams such that all surface water within the area flows through a single outlet.
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Hydrologic unit means a drainage area within:
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Hydrologic unit means a watershed in the United States that has been delineated by the U.S. Geological Survey using a national standard hierarchical system based on surface hydrologic features and are classified into the following types of hydrologic units: First-field (region) Second-field (sub-region) Third-field (accounting unit) Fourth-field (cataloguing unit) Fifth-field (watershed) Sixth-field (sub-watershed)
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Related to Hydrologic unit

  • Academic Unit means one of the listed Departments or Schools of Acadia University.

  • FTPS Unit means Units which are purchased through the Fund/SERV(R) trading system or on a manual basis through FTP Services LLC or for which FTP Services LLC is acting as FTPS Unit Servicing Agent.

  • Generating Unit means one or more generating equipment combinations typically consisting of prime mover(s), electric generator(s), electric transformer(s), steam generator(s) and air emission control devices.

  • Condominium unit A Single Family Property within a Condominium Project.

  • LLC Unit means a common limited liability interest in the Company.

  • chemical tanker means a ship constructed or adapted and used for the carriage in bulk of any liquid product listed in chapter 17 of the International Bulk Chemical Code;

  • Gasification means the substoichiometric oxidation or steam reformation of a substance to produce a gaseous mixture containing two or more of the following: (i) oxides of carbon; (ii) methane; and (iii) hydrogen;

  • Drilling unit means the area fixed for the drilling of one well by order or rule of any state or federal body having authority. If a Drilling Unit is not fixed by any such rule or order, a Drilling Unit shall be the drilling unit as established by the pattern of drilling in the Contract Area unless fixed by express agreement of the Drilling Parties.

  • Spending unit means the department, bureau, division, office, board, commission,

  • Heat unit means a unit of energy equal to the product of the peak kilovoltage, milliamperes, and seconds, i.e., kVp x mA x second.

  • Wastewater treatment unit means a device which:

  • Operating Unit means, for purposes of this part, primary and constituent operating units designated as such in the Department Order Series of the De- partment of Commerce and, in addi- tion, the Office of the Secretary.

  • Electric generating unit means an individual electric generator and its associated plant and apparatus whose electrical output is capable of being separately identified and metered. Emergency Condition shall mean a condition or situation: (1) that in the judgment of the Party making the claim is imminently likely to endanger life or property; or (2) that, in the case of the CAISO, is imminently likely (as determined in a non-discriminatory manner) to cause a material adverse effect on the security of, or damage to, the CAISO Controlled Grid or the electric systems of others to which the CAISO Controlled Grid is directly connected; (3) that, in the case of the Participating TO, is imminently likely (as determined in a non-discriminatory manner) to cause a material adverse effect on the security of, or damage to, the Participating TO’s Transmission System, Participating TO’s Interconnection Facilities, Distribution System, or the electric systems of others to which the Participating TO’s electric system is directly connected; or

  • CO2 means carbon dioxide.

  • Subsurface tracer study means the release of a substance tagged with radioactive material for the purpose of tracing the movement or position of the tagged substance in the well-bore or adjacent formation.

  • Carbon regeneration unit means any enclosed thermal treatment device used to regenerate spent activated carbon.

  • Cluster development means a contiguous cluster or

  • Public water supply system means a system for the provision to the public of piped water for human consumption, if the system has at least fifteen service connections or regularly serves at least twenty-five individuals. The term includes any source of water and any collection, treatment, storage, and distribution facilities under control of the operator of the system and used primarily in connection with the system, and any collection or pretreatment storage facilities not under such control which are used primarily in connection with the system.

  • Geothermal fluid means water in any form at temperatures greater than 120

  • Total tetrahydrocannabinol means the sum of the percentage by weight of tetrahydrocannabinolic acid multiplied by eight hundred seventy-seven thousandths plus the percentage of weight of tetrahydrocannabinol.

  • Unit and “Quality” means the unit and quantity specified in the schedule.

  • Economic Development Property means those items of real and tangible personal property of the Project which are eligible for inclusion as economic development property under the FILOT Act and this Fee Agreement, and selected and identified by the Company or any Sponsor Affiliate in its annual filing of a SCDOR PT-300S or comparable form with the Department (as such filing may be amended from time to time) for each year within the Investment Period.

  • Cogeneration unit means a unit that is able to operate in cogeneration mode;

  • Planned unit development means a subdivision characterized by a unified site design, clustered residential units and/or commercial units, and areas of common open space.

  • Economic development project means land and existing or planned improvements suitable for use by an industrial or commercial enterprise, or housing development, or the protection of the environment, including, but not limited to, groundwater or surface water. Economic development project includes necessary buildings, improvements, or structures suitable for and intended for or incidental to use as an industrial or commercial enterprise or housing development; and includes industrial park or industrial site improvements and port improvements or housing development incidental to an industrial or commercial enterprise; and includes the machinery, furnishings, and equipment necessary, suitable, intended for, or incidental to a commercial, industrial, or residential use in connection with the buildings or structures.

  • Project Water means water made available for delivery to the contractors by project conservation facilities and the transportation facilities included in the System.