3.8.6

Lock UTCI to Standard = Grass

columns.html

@@ -96,7 +96,7 @@
       <tr><td><strong>Diffuse W/m²</strong></td><td>Solar radiation scattered from all directions across the sky. Present even under cloud cover; contributes to the overall solar heat load.</td></tr>
       <tr><td><strong>Tmrt °C</strong></td><td>Mean Radiant Temperature — the combined heat from direct sun, scattered sky light, and ground reflection expressed as a temperature. Can exceed air temperature by 20–30 °C on a sunny day; this is why shade feels so much cooler, and it is one of the inputs to UTCI.</td></tr>
       <tr><td><strong>UTCI−Air Δ</strong></td><td>The gap between the UTCI felt temperature and the plain air temperature. A large positive value means solar radiation is adding significant heat stress beyond what the thermometer shows.</td></tr>
-      <tr><td><strong>UTCI °C</strong></td><td>Universal Thermal Climate Index — the raw felt temperature combining air temp, humidity, wind, and solar radiation. Does not include precipitation effects.</td></tr>
+      <tr><td><strong>UTCI °C</strong></td><td>Universal Thermal Climate Index — the peer-reviewed standard felt temperature, combining air temp, humidity, wind, and solar radiation. Always computed from the raw open-ground reading: it does not move when you change the Solar Model, and it excludes precipitation. That is deliberate — it is the fixed benchmark to read SunSoak against, so the gap between the two shows exactly what your surroundings and the weather are adding.</td></tr>
       <tr><td><strong>UV-A</strong></td><td>Estimated UV-A radiation index. UV-A penetrates deeper into the skin and contributes to long-term ageing and some skin cancers, even through glass. Present throughout daylight hours.</td></tr>
       <tr><td><strong>UV-B</strong></td><td>Estimated UV-B radiation index. Causes sunburn and drives vitamin D production. Intensity depends strongly on solar elevation and cloud cover, falling sharply at low sun angles.</td></tr>
       <tr><td><strong>Burn time</strong></td><td>Estimated time to reach one Minimal Erythemal Dose (MED) — the threshold for sunburn — based on the UV index and your selected Fitzpatrick skin type (chosen from a dropdown in the column bar). A guide, not a medical measurement.</td></tr>