ET adjustment factor definition

ET adjustment factor. (ETAF) means a factor of 0.55 for residential areas and 0.45 for non-residential areas, that, when applied to reference evapotranspiration, adjusts for plant factors and irrigation efficiency, two major influences upon the amount of water that needs to be applied to the landscape. The ETAF for new and existing (non-rehabilitated) Special Landscape Areas shall not exceed 1.0. The ETAF for existing non-rehabilitated landscapes is 0.8.

ET adjustment factor. (ETAF) means a factor of 0.7, that, when applied to reference evapotranspiration, adjusts for plant factors and irrigation efficiency, two major influences upon the amount of water that needs to be applied to the landscape.

ET adjustment factor. (ETAF) means a factor of 0.55 for residential areas and

Examples of ET adjustment factor in a sentence

• These total savings of 70,000 acre-feet per year when normalized by the projected 2020 population (43.8 million) yields between 1 and 2 GPCD.Our estimate only captures the extra savings that will result from lowering the ET adjustment factor, not the total savings from having a landscape designed according to the Ordinance and irrigated within budget relative to a landscape not designed and irrigated according to the Ordinance.

• If these service areas intend to retrofit at a faster pace than was assumed by the Comprehensive Evaluation, then the above estimates may not hold.10http://www.owue.water.ca.gov/landscape/ord/ord.cfmWe estimate that reducing the ET adjustment factor from 0.8 to 0.7 (12.5% reduction) will roughly generate savings of 1-2 GPCD by 2020.

• Alternatively, the same ET adjustment factor (160%) could be attained with 50 percent irriga- tion efficiency and no allocation of rainfall to cover plant needs.

• Per the Water-Efficient Landscape Ordinance, the evapotranspiration (ET) adjustment factor for recycled water use areas shall not exceed 1.0. However, regular monitoring through system checks or visual indicators of runoff are necessary for the site supervisor to confirm the application rate does not exceed soil infiltration rate.

• A combined plant mix with a site-wide average plant factor of 0.5 (indicating a moderate water need) and average irrigation efficiency of 0.71 produces an ET adjustment factor of (0.7) = (0.5/0.71), which is the standard of water use efficiency generally required by this water efficient landscape ordinance and the guidelines, except that the ETAF for a special landscape area shall not exceed 1.0.

More Definitions of ET adjustment factor

ET adjustment factor. (ETAF) means a factor of 0.7, that, when applied to reference evapotranspiration, adjusts for plant factors and irrigation efficiency, two major influences upon the amount of water that needs to be applied to the landscape. A combined plant mix with a site-wide average of 0.5 is the basis of the plant factor portion of this calculation. For purposes of the ETAF, the average irrigation efficiency is 0.71. Therefore, the ET Adjustment Factor is (0.7) = (0.5/0.71). ETAF for a Special Landscape Area shall not exceed 1.0. ETAF for existing non-rehabilitated landscapes is 0.8.

ET adjustment factor means a factor of 0.8, that, when applied to reference evapotranspiration, adjusts for plant factors and irrigation efficiency, two major influences upon the amount of water that needs to be applied to the landscape. A combined plant mix with a site-wide average of 0.5 is the basis of the plant factor portion of this calculation. The irrigation efficiency for purposes of the ET Adjustment Factor is 0.625. Therefore, the ET Adjustment Factor (0.8) = (0.5/0.625).

ET adjustment factor. (ETAF) means a factor that when applied to reference ETo, adjusts for plant water requirements and irrigation efficiency, two major influences on the amount of water that is required for a healthy landscape.

ET adjustment factor. (ETAF) means a factor of 0.7, that, when applied to reference evapotranspiration, adjusts for plant factors and irrigation efficiency, two major influences upon the amount of water that needs to be applied to the landscape. ETAF for a Special Landscape Area shall not exceed 1.0. ETAF for existing non-rehabilitated landscapes shall not exceed 0.8.

ET adjustment factor. (ETAF) means a factor of 0.75 for residential areas and 0.4 for non- residential areas, that, when applied to reference evapotranspiration, adjusts for plant factors and irrigation efficiency, two major influences upon the amount of water that needs to be applied to the landscape. A combined plant mix with a site-wide average of 0.5 0.425 for residential areas and 0.37 for other areas is the basis of the plant factor portion of this calculation. For purposes of the ETAF, the average irrigation efficiency is 0.7185 for residential and 0.92 for non-residential areas. Therefore, the ETAFAdjustment Factor for residential and non-residential is (0.75)=(0.4255/0.8571) and (0.4)=(0.0.37/0.92), respectively. The ETAF for a new and existing Special Landscape Areas shall not exceed 1.0 0.8. The ETAF for existing non-rehabilitated landscapes is 0.8. Effective January 1, 2018, the ETAF shall mean a factor of 0.4 for both residential and non-residential areas.

ET adjustment factor. (ETAF) means a factor of seven-tenths (0.7) that, when applied to reference evapotranspiration, adjusts for plant factors and irrigation efficiency, two (2) major influences upon the amount of water that needs to be applied to the landscape. A combined plant mix with a site-wide average of five-tenths (0.5) is the basis of the plant factor portion of this calculation. For purposes of the ETAF, the average irrigation efficiency is seventy-one hundredths (0.71). Therefore, the ET adjustment factor is (0.7)=(0.5/0.71). ETAF for a special landscape area shall not exceed one (1.0). ETAF for existing nonrehabilitated landscapes is

ET adjustment factor means a factor that, when applied to reference evapotranspiration, adjusts for plant factors and irrigation efficiency, two major influences upon the amount of water that needs to be applied to a target landscape. A combined plant mix with a site-wide average of 0.5 is the basis of the plant factor portion of this calculation.