Wiki source code of 2.3.12 Protection of water resource and environment
Version 1.1 by Hyunji Cho on 2022/03/03 09:37
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| author | version | line-number | content |
|---|---|---|---|
| 1 | = 2.3.12 Protection of water resource and environment = | ||
| 2 | |||
| 3 | |((( | ||
| 4 | ====== **Social challenge/ impact linked to:** ====== | ||
| 5 | )))| Environmental | ||
| 6 | |((( | ||
| 7 | ====== **Level of importance** ====== | ||
| 8 | )))|((( | ||
| 9 | **1** - High Importance / must have | ||
| 10 | ))) | ||
| 11 | |((( | ||
| 12 | ====== **Description** ====== | ||
| 13 | )))|The total net rainfall which is not absorbed by the ground surface and thus which is excess runoff. | ||
| 14 | |((( | ||
| 15 | ====== **Scale as linked to D2.2 framework** ====== | ||
| 16 | )))|((( | ||
| 17 | * City | ||
| 18 | * Neighborhood | ||
| 19 | * Project Area | ||
| 20 | * Street | ||
| 21 | ))) | ||
| 22 | |((( | ||
| 23 | ====== **Data source and input type** ====== | ||
| 24 | )))|((( | ||
| 25 | * Land use maps | ||
| 26 | * National or local weather stations | ||
| 27 | ))) | ||
| 28 | |((( | ||
| 29 | ====== **Connection with SDGs** ====== | ||
| 30 | )))|((( | ||
| 31 | * Goal 11: Sustainable cities and communities | ||
| 32 | * Goal 13: Climate action | ||
| 33 | ))) | ||
| 34 | |((( | ||
| 35 | ====== **Required Data** ====== | ||
| 36 | )))|((( | ||
| 37 | * Volume of rainfall(mm) | ||
| 38 | * Runoff coefficient value | ||
| 39 | ))) | ||
| 40 | |((( | ||
| 41 | ====== **Expected Outputs** ====== | ||
| 42 | )))|((( | ||
| 43 | * mm | ||
| 44 | * Total volume of rainfall which is not absorbed by the ground. | ||
| 45 | ))) | ||
| 46 | |((( | ||
| 47 | ====== **Calculation methods** ====== | ||
| 48 | )))|((( | ||
| 49 | * Runoff volume = volume of rainfall X runoff coefficient | ||
| 50 | * Runoff coefficient value | ||
| 51 | ** this is the average percentage of rainwater that runs off that type of surface | ||
| 52 | ** values for different surfaces are as follows: | ||
| 53 | ** **roof or impervious paving (such as an asphalt street) - **0.8-0.95 | ||
| 54 | ** **Sonoran Desert uplands **(healthy indigenous landscape): range 0.20–0.70, average 0.30–0.50 | ||
| 55 | ** Bare earth: range 0.20–0.75, average 0.35–0.55 | ||
| 56 | ** Grass/lawn: range 0.05–0.35, average 0.10–0.25 | ||
| 57 | ** For gravel use the coefficient of the ground below the gravel | ||
| 58 | ))) | ||
| 59 | |((( | ||
| 60 | ====== **Level of expertise required** ====== | ||
| 61 | )))|((( | ||
| 62 | * Basic | ||
| 63 | ))) | ||
| 64 | |((( | ||
| 65 | ====== **Links and references** ====== | ||
| 66 | )))|((( | ||
| 67 | * [[Front matter 10-29-09.qxd:Layout 1 (netdna-ssl.com)>>url:https://1dycb0os5pn1174lbuijnlec-wpengine.netdna-ssl.com/wp-content/uploads/2009/07/Volume-1-pg-48.pdf]] | ||
| 68 | ))) | ||
| 69 | |||
| 70 | Revisions | ||
| 71 | |||
| 72 | |**Version**|**Name**|**Date**|**Changes made** | ||
| 73 | |**0.1**|Emily (EcoWise)|24/02/2022|Factsheet created |
