For anyone confused about wet-bulb (global temperature) and dry-bulb temperature, heat index etc. Those are all specific formulas with different sets of paramet

For anyone confused about wet-bulb (global temperature) and dry-bulb temperature, heat index etc. Those are all specific formulas with different sets of parameters and defined domains. To exemplify the range: [...] Meteorologists measure the heat/humidity effect on the so-called "wet bulb" Centigrade scale; in the United States, these readings are often translated into "heat index" or "real-feel" Fahrenheit readings. Prior studies suggest that even the strongest, best-adapted people cannot carry out normal outdoor activities when the wet bulb hits 32 C, equivalent to a heat index of 132 F [~56 C]. Most others would crumble well before that. A reading of 35—the peak briefly reached in the Persian Gulf cities—is considered the theoretical survivability limit. That translates roughly to a heat index of 160 F [~71C]. (The heat index actually ends at 127 F, so these readings are literally off the charts.)[...] [0] A 3 centigrade difference at the end of the wet bulb spectrum (from 32 to 35) could be translated roughly to an estimated 15 centigrade difference from 56C to 71C (or a delta of 28F from 132F to 160F, respectively) in the heat index where it not to end at 127F. That's quite a divergence resulting from the differernt formulas (from the quick look on it: polynomial vs exponential function). At even 95% humidity one fares far better than at 100% (literally no thermodynamical possibility to "sweat", that's why the theoretical limit is probably at 35, 2 centigrade away from the core body temperature of 37). Here an easy to grasp article [1] describing the much commonly used WBGT ("Wet Bulb Globe Temperature") in professional settings (marathons, army ...). [0]https://phys.org/news/2020-05-potentially-fatal-combinations-humidity-emerging.html https://phys.org/news/2020-05-potentially-fatal-combinations... [1]https://www.dtn.com/forget-heat-index-wet-bulb-globe-temperature-is-where-its-at/ https://www.dtn.com/forget-heat-index-wet-bulb-globe-tempera...