Moran Daniel S, Epstein Yoram
Heller Institute of Medical Research, Sheba Medical Center, Tel Hashomer 52621, Israel.
Ind Health. 2006 Jul;44(3):399-403. doi: 10.2486/indhealth.44.399.
Recently, a novel environmental stress index (ESI) which is composed from commonly used meteorological variables: ambient temperature (T(a)), relative humidity (RH), and solar radiation (SR) was suggested as follows: ESI = 0.63T(a)-0.03RH+0.002SR+0.0054(T(a) x RH)-0.073(0.1+SR)(-1); (degrees C) The purpose of the present study was to evaluate and validate the ESI for hot dry and hot wet climatic conditions. The ESI was applied to large meteorological databases from 2 different locations resembling hot/wet and hot/dry climates. Data analysis revealed high correlation between ESI and the wet bulb globe temperature (WBGT) index for each of the two databases: P < 0.05, R2 = 0.985 and 0.982, for the hot/dry and hot/wet conditions, respectively. Therefore, it is concluded that ESI, which is constructed from fast response and commonly used weather variables (T(a), RH, SR), and also found in a microsensor format is validated for hot/dry and hot/wet zones and as a potential index to serve as an alternative to the WBGT for heat category assessment.
最近，一种由常用气象变量组成的新型环境压力指数（ESI）被提出，这些变量包括：环境温度（T(a)）、相对湿度（RH）和太阳辐射（SR），具体如下：ESI = 0.63T(a) - 0.03RH + 0.002SR + 0.0054(T(a)×RH) - 0.073(0.1 + SR)^(-1)；（摄氏度）本研究的目的是评估和验证ESI在炎热干燥和炎热潮湿气候条件下的适用性。ESI被应用于来自两个不同地点的大型气象数据库，这两个地点分别类似于炎热/潮湿和炎热/干燥气候。数据分析显示，对于这两个数据库中的每一个，ESI与湿球黑球温度（WBGT）指数之间都存在高度相关性：在炎热干燥和炎热潮湿条件下，P < 0.05，R2分别为0.985和0.982。因此，可以得出结论，ESI由快速响应且常用的气象变量（T(a)、RH、SR）构建而成，并且以微传感器形式存在，在炎热干燥和炎热潮湿地区得到了验证，可作为一种潜在的指数，替代WBGT用于热类别评估。
