Delayed Impact Calculator
| Authors: | |
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| Owners: | Samuel Collin Robinson |
| Type: | Resource |
| Storage: | The size of this resource is 65.9 MB |
| Created: | Apr 23, 2021 at 9:54 p.m. |
| Last updated: | Feb 28, 2025 at 11:22 p.m. |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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| Views: | 2348 |
| Downloads: | 218 |
| +1 Votes: | Be the first one to this. |
| Comments: | No comments (yet) |
Abstract
This calculator is an Excel workbook programmed with Visual Basic for Applications macro code to perform finite-difference computations for assessment of attenuation and delay dynamics of stream-aquifer system response to groundwater impulse time series input. The spreadsheet estimates impact accrual schedules for well-induced stream depletion and for groundwater return flow scenarios. Single impulse, uniform series, variable series, and annual pattern impulse type options facilitate streamlined input and analysis of a diverse range of occurrence and use patterns, including intermittent pumping. Segregation of response output by stream reach gives location-specific insight useful to surface water administration. Tidy secondary output options include cumulative ratio, response ratio, and period ratio of response to impulse. The workbook (.xlsm) is accompanied by an instruction manual (.pdf) and a compressed archive of supplemental materials, primarily consisting of copies configured to match published scenarios. There is also a version in Spanish residing as a separate resource named Calculadora de Impactos Demorados.
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Related Resources
| This resource updates and replaces a previous version | Robinson, S. C. (2020). Delayed Impact Calculator, HydroShare, https://doi.org/10.4211/hs.6b35719ca1614c118fbbf12a8002f6f7 |
| The content of this resource is derived from | Robinson, S. C. 2020. "Well-induced stream depletion and groundwater return flow: estimating impact schedules with a finite-difference spreadsheet." J. Water Resour. Plann. Manage., 146(7). https://doi.org/10.1061/(ASCE)WR.1943-5452.0001230 |
How to Cite
Creator retains copyright, distributes tool for free with license to make, keep, and use a few copies per computer.
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