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Users manual for the University of Idaho ground-water flow model and recharge program Item Info
![This manual documents two computer programs. The first is a finite difference ground-water flow model which has been applied to several areas in southern Idaho since its conception in 1970. The second program, titled RECHARGE, calculates and sums several factors contributing to aquifer recharge and discharge, for each cell of a rectangular model grid. The model simulates two-dimensional flow under anisotropic and heterogeneous aquifer conditions. Head values are calculated by application of the alternating-direction procedure to the backward-difference form of the finite -difference equation. The model is capable of calculating flow to or from a single overlying or underlying aquifer under transient or steady-state conditions, for confined and unconfined aquifers. [...] The RECHARGE program calculates aquifer recharge and discharge from precipitation, ground-water and surface-water irrigation, canal seepage, river gains and losses, ground-water pumping, and boundary underflow. These factors are summed for each grid cell and timestep for input to a ground-water model. [...]](https://objects.lib.uidaho.edu/iwdl/small/iwdl-198304_sm.jpg)
- Title:
- Users manual for the University of Idaho ground-water flow model and recharge program
- Authors:
- Johnson, Gary S.; Brockway, Charles. E.
- Date Created (ISO Standard):
- 1983-02
- Description:
- This manual documents two computer programs. The first is a finite difference ground-water flow model which has been applied to several areas in southern Idaho since its conception in 1970. The second program, titled RECHARGE, calculates and sums several factors contributing to aquifer recharge and discharge, for each cell of a rectangular model grid. The model simulates two-dimensional flow under anisotropic and heterogeneous aquifer conditions. Head values are calculated by application of the alternating-direction procedure to the backward-difference form of the finite -difference equation. The model is capable of calculating flow to or from a single overlying or underlying aquifer under transient or steady-state conditions, for confined and unconfined aquifers. [...] The RECHARGE program calculates aquifer recharge and discharge from precipitation, ground-water and surface-water irrigation, canal seepage, river gains and losses, ground-water pumping, and boundary underflow. These factors are summed for each grid cell and timestep for input to a ground-water model. [...]
- Subjects:
- Computer models Aquifers Aquifer evaluation Irrigation Evapotranspiration Soil moisture Recharge Flow discharge
- Collection:
- IWRRI
- IWRRI number:
- 198304
- Rights:
- In copyright, educational use permitted. Educational use includes non-commercial reproduction of text and images in materials for teaching and research purposes. For other contexts beyond fair use, including digital reproduction, please contact the University of Idaho Library Special Collections and Archives Department at libspec@uidaho.edu. The University of Idaho Library is not liable for any violations of the law by users.
- Publisher:
- Idaho Water and Energy Resources Research Institute; University of Idaho
- Contributing Institution:
- University of Idaho
- Type:
- Text
- Format:
- application/pdf
- Cataloger:
- KIT
- Date Digitized:
- 2017-08-24
Source
- Preferred Citation:
- "Users manual for the University of Idaho ground-water flow model and recharge program", Idaho Waters Digital Library, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/iwdl/items/iwdl-198304.html
Rights
- Rights:
- In copyright, educational use permitted. Educational use includes non-commercial reproduction of text and images in materials for teaching and research purposes. For other contexts beyond fair use, including digital reproduction, please contact the University of Idaho Library Special Collections and Archives Department at libspec@uidaho.edu. The University of Idaho Library is not liable for any violations of the law by users.
- Standardized Rights:
- http://rightsstatements.org/vocab/InC-EDU/1.0/