3.8.6

Lock UTCI to Standard = Grass

assets/js/app.js

@@ -379,9 +379,9 @@ export function UTCIForecast() {
 	// Columns that mark the start of a logical group - used to draw a faint
 	// vertical border separating groups in the forecast table.
 	const GROUP_ORDER = {
-	  felt:    ['utciP', 'shadeT', 'vehicleT', 'indoorT', 'managedT', 'petHomeT', 'burn', 'utci', 'delta', 'tmrt'],
+	  felt:    ['utciP', 'shadeT', 'vehicleT', 'indoorT', 'managedT', 'burn', 'utci', 'delta', 'tmrt'],
 	  surface: ['concreteT', 'soilT', 'soilT6', 'soilM', 'furSurfaceT', 'pawT'],
-	  ambient: ['petShadeT', 'air', 'rh', 'dew'],
+	  ambient: ['petShadeT', 'petHomeT', 'air', 'rh', 'dew'],
 	  precip:  ['precip', 'precipProb', 'lightning'],
 	  sky:     ['cloud', 'vis'],
 	  wind:    ['wind', 'dir'],
@@ -1160,7 +1160,7 @@ export function UTCIForecast() {
                 ${colOffered('furSurfaceT') && html`<button class=${`col-toggle grp-surface${visibleCols.furSurfaceT ? ' on' : ''}`} onClick=${() => toggleCol('furSurfaceT')}>Fur Colour</button>`}
                 ${colOffered('pawT') && html`<button class=${`col-toggle grp-surface${visibleCols.pawT ? ' on' : ''}`} onClick=${() => toggleCol('pawT')}>Paw</button>`}
                 ${colOffered('petShadeT') && html`<button class=${`col-toggle grp-ambient${visibleCols.petShadeT ? ' on' : ''}`} onClick=${() => toggleCol('petShadeT')}>Pet Shade</button>`}
-                ${colOffered('petHomeT') && html`<button class=${`col-toggle grp-felt${visibleCols.petHomeT ? ' on' : ''}`} onClick=${() => toggleCol('petHomeT')}>Pet Home</button>`}
+                ${colOffered('petHomeT') && html`<button class=${`col-toggle grp-ambient${visibleCols.petHomeT ? ' on' : ''}`} onClick=${() => toggleCol('petHomeT')}>Pet Home</button>`}
                 ${colOffered('burn') && html`<button class=${`col-toggle grp-felt${visibleCols.burn ? ' on' : ''}`} onClick=${() => toggleCol('burn')}>Burn</button>`}
                 ${colOffered('utci') && html`<button class=${`col-toggle grp-felt${visibleCols.utci ? ' on' : ''}`} onClick=${() => toggleCol('utci')}>UTCI</button>`}
                 ${colOffered('delta') && html`<button class=${`col-toggle grp-felt${visibleCols.delta ? ' on' : ''}`} onClick=${() => toggleCol('delta')}>Δ</button>`}
@@ -1355,7 +1355,6 @@ export function UTCIForecast() {
 						${visibleCols.vehicleT  && html`<th class=${`col-info-th ${groupStart('vehicleT')} ${groupColor('vehicleT')}`} scope="col" onClick=${(e) => handleThClick('vehicleT', e)} onMouseEnter=${(e) => handleThEnter('vehicleT', e)} onMouseLeave=${handleThLeave}>Vehicle <span class="col-unit">°C peak</span></th>`}
 						${indoorMode === 'on' && !indoorManaged && html`<th class=${`col-info-th ${groupStart('indoorT')} ${groupColor('indoorT')}`} scope="col" onClick=${(e) => handleThClick('indoorT', e)} onMouseEnter=${(e) => handleThEnter('indoorT', e)} onMouseLeave=${handleThLeave}>Indoors <span class="col-unit">°C est.</span></th>`}
 						${indoorMode === 'on' &&  indoorManaged && html`<th class=${`col-info-th ${groupStart('managedT')} ${groupColor('managedT')}`} scope="col" onClick=${(e) => handleThClick('managedT', e)} onMouseEnter=${(e) => handleThEnter('managedT', e)} onMouseLeave=${handleThLeave}>Managed <span class="col-unit">°C est.</span></th>`}
-						${visibleCols.petHomeT && html`<th class=${`col-info-th ${groupStart('petHomeT')} ${groupColor('petHomeT')}`} scope="col" onClick=${(e) => handleThClick('petHomeT', e)} onMouseEnter=${(e) => handleThEnter('petHomeT', e)} onMouseLeave=${handleThLeave}>Pet Home <span class="col-unit">°C est.</span></th>`}
 						${visibleCols.burn    && html`<th class=${`col-info-th ${groupStart('burn')} ${groupColor('burn')}`} scope="col" onClick=${(e) => handleThClick('burn', e)} onMouseEnter=${(e) => handleThEnter('burn', e)} onMouseLeave=${handleThLeave}>Burn <span class="col-unit">to MED</span></th>`}
 						${visibleCols.utci    && html`<th class=${`col-info-th ${groupStart('utci')} ${groupColor('utci')}`} scope="col" onClick=${(e) => handleThClick('utci', e)} onMouseEnter=${(e) => handleThEnter('utci', e)} onMouseLeave=${handleThLeave}>UTCI <span class="col-unit">°C felt</span></th>`}
 						${visibleCols.delta   && html`<th class=${`col-info-th ${groupStart('delta')} ${groupColor('delta')}`} scope="col" onClick=${(e) => handleThClick('delta', e)} onMouseEnter=${(e) => handleThEnter('delta', e)} onMouseLeave=${handleThLeave}>Δ <span class="col-unit">UTCI−Air</span></th>`}
@@ -1367,6 +1366,7 @@ export function UTCIForecast() {
 						${visibleCols.soilT6  && html`<th class=${`col-info-th ${groupStart('soilT6')} ${groupColor('soilT6')}`} scope="col" onClick=${(e) => handleThClick('soilT6', e)} onMouseEnter=${(e) => handleThEnter('soilT6', e)} onMouseLeave=${handleThLeave}>Soil 6cm <span class="col-unit">°C root</span></th>`}
 						${visibleCols.soilM   && html`<th class=${`col-info-th ${groupStart('soilM')} ${groupColor('soilM')}`} scope="col" onClick=${(e) => handleThClick('soilM', e)} onMouseEnter=${(e) => handleThEnter('soilM', e)} onMouseLeave=${handleThLeave}>Soil moist <span class="col-unit">%</span></th>`}
 						${visibleCols.petShadeT && html`<th class=${`utci-tight-head col-info-th ${groupStart('petShadeT')} ${groupColor('petShadeT')}`} scope="col" onClick=${(e) => handleThClick('petShadeT', e)} onMouseEnter=${(e) => handleThEnter('petShadeT', e)} onMouseLeave=${handleThLeave}>Pet Shade <span class="col-unit">°C</span></th>`}
+						${visibleCols.petHomeT && html`<th class=${`col-info-th ${groupStart('petHomeT')} ${groupColor('petHomeT')}`} scope="col" onClick=${(e) => handleThClick('petHomeT', e)} onMouseEnter=${(e) => handleThEnter('petHomeT', e)} onMouseLeave=${handleThLeave}>Pet Home <span class="col-unit">°C est.</span></th>`}
 						${visibleCols.air     && html`<th class=${`utci-tight-head col-info-th ${groupStart('air')} ${groupColor('air')}`} scope="col" onClick=${(e) => handleThClick('air', e)} onMouseEnter=${(e) => handleThEnter('air', e)} onMouseLeave=${handleThLeave}>Air <span class="col-unit">°C</span></th>`}
 						${visibleCols.rh      && html`<th class=${`col-info-th ${groupStart('rh')} ${groupColor('rh')}`} scope="col" onClick=${(e) => handleThClick('rh', e)} onMouseEnter=${(e) => handleThEnter('rh', e)} onMouseLeave=${handleThLeave}>RH <span class="col-unit">%</span></th>`}
 						${visibleCols.dew     && html`<th class=${`col-info-th ${groupStart('dew')} ${groupColor('dew')}`} scope="col" onClick=${(e) => handleThClick('dew', e)} onMouseEnter=${(e) => handleThEnter('dew', e)} onMouseLeave=${handleThLeave}>Dew <span class="col-unit">°C</span></th>`}
@@ -1537,10 +1537,6 @@ export function UTCIForecast() {
 						  <td class=${groupStart('managedT')} style=${{ color: airTempFontColor(), background: airTempBg(r.managedT, rPrev?.managedT, rNext?.managedT) }}>
 							${fmt(r.managedT)}${u('°C')}
 						  </td>`}
-						${visibleCols.petHomeT && html`
-						  <td class=${groupStart('petHomeT')} title=${petCategory(r.indoorT)?.label ?? ''} style=${{ color: airTempFontColor(), background: petAirTempBg(r.indoorT, rPrev?.indoorT, rNext?.indoorT) }}>
-							${fmt(r.indoorT)}${u('°C')}
-						  </td>`}
 						${visibleCols.burn && html`
 						  <td class=${groupStart('burn')} style=${{ color: r.uv > 0 ? (burnMins < 30 ? '#c44a3a' : '#c8601a') : '#4a3218', background: burnBg(burnMins, r.uv) }}>
 							${burnLabel(burnMins)}
@@ -1579,6 +1575,10 @@ export function UTCIForecast() {
 							  <td class=${groupStart('petShadeT')} title=${r.petShadeT != null ? (petCategory(r.petShadeT)?.label ?? '') : ''} style=${{ color: airTempFontColor(), background: petAirTempBg(r.petShadeT, rPrev?.petShadeT, rNext?.petShadeT) }}>
 								${r.petShadeT != null ? fmt(r.petShadeT) + u('°C') : '—'}
 							  </td>`}
+							${visibleCols.petHomeT && html`
+							  <td class=${groupStart('petHomeT')} title=${petCategory(r.indoorT)?.label ?? ''} style=${{ color: airTempFontColor(), background: petAirTempBg(r.indoorT, rPrev?.indoorT, rNext?.indoorT) }}>
+								${fmt(r.indoorT)}${u('°C')}
+							  </td>`}
 							${visibleCols.air     && html`<td class=${groupStart('air')} style=${{ background: airTempBg(r.Ta, rPrev?.Ta, rNext?.Ta), color: airTempFontColor() }}>${fmt(r.Ta)}${u('°C')}</td>`}
 							${visibleCols.rh      && html`<td class=${groupStart('rh')} style=${{ background: scaleBg(r.RH, 30, 100, '70,145,200') }}>${Math.round(r.RH)}${u('%')}</td>`}
 							${visibleCols.dew     && html`<td class=${groupStart('dew')} style=${{ background: airTempBg(r.dew, rPrev?.dew, rNext?.dew), color: airTempFontColor() }}>${fmt(r.dew)}${u('°C')}</td>`}

assets/js/compute.js

@@ -86,9 +86,20 @@ export function buildHourlyRows({ forecast, airQuality, location, vehicleType, v
     // concreteT is now stamped in the two-pass section below (thermal lag).
     // vehicleT is stamped in the two-pass section below (thermal lag).
     const eh       = vaporPressureHpa(Ta, RH);
+    // UTCI: the standard, unmodified benchmark. Computed from the raw
+    // open-ground observation only - NO Solar Model anywhere in it. Its whole
+    // job is to be the fixed reference SunSoak is read against, so it must
+    // not move when the user switches environment; if both numbers shifted
+    // together the comparison would say nothing. Only the SunSoak family
+    // (utciAdj, Shade, Tmrt) responds to the Solar Model.
+    const TmrtStd  = calcTmrt(Ta, dir, dif, glob, elev);
+    const utci     = utciApprox(Ta, TmrtStd, va, eh);
+    // SunSoak: same peer-reviewed polynomial, every input shifted by the
+    // active Solar Model (air temp via taOffset, radiation via dir/dif/glob
+    // factors), then the rain/snow soak penalty on top.
     const Tmrt     = calcTmrt(TaEnv, dirEnv, difEnv, globEnv, elev);
-    const utci     = utciApprox(TaEnv, Tmrt, va, eh);
+    const utciEnv  = utciApprox(TaEnv, Tmrt, va, eh);
-    const utciAdj = utci + precipPenalty(precip, snow, va);
+    const utciAdj  = utciEnv + precipPenalty(precip, snow, va);
     // Shade air temp: what a thermometer in this Solar Model's typical shade
     // (building shadow, beach umbrella, canopy...) would read. Shares
     // SunSoak's TaEnv baseline and env-reduced radiation, so the two stay
@@ -757,7 +768,7 @@ export function computeGlanceSummary(todayRows, profile, variant, skinType, cols
         label: 'Pet at home',
         value: peakIndoor ? `${Math.round(peakIndoor.indoorT)}° at ${hhmm(peakIndoor.iso)}` : '-',
         alert: !!(peakIndoor && peakIndoor.indoorT >= 26),
-        grp: 'felt',
+        grp: 'ambient',
       }] : []),
       ...(show('vehicleT') ? [{
         icon: '🧒',

assets/js/config.js

@@ -274,7 +274,7 @@ export const COL_DESCRIPTIONS = {
   diffuse:   { title: 'Diffuse Radiation', desc: 'Scattered solar radiation arriving from all directions across the sky (W/m²). Present even under cloud; contributes to overall solar load.' },
   tmrt:      { title: 'Mean Radiant Temp', desc: 'The combined heat from direct sun, scattered sky light, and ground reflection expressed as a temperature. Typically well above air temperature even on overcast days, and is one of the inputs used to calculate UTCI.' },
   delta:     { title: 'UTCI − Air Delta', desc: 'The difference 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.' },
-  utci:      { title: 'UTCI',             desc: 'Universal Thermal Climate Index — the raw felt temperature combining air temp, humidity, wind, and solar radiation. Does not include precipitation effects.' },
+  utci:      { title: 'UTCI',             desc: '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 does not include precipitation. That is the point of it — a fixed benchmark to read SunSoak against, so the gap between the two columns shows exactly what your surroundings and the weather are adding.' },
   uvA:       { title: 'UV-A Index',       desc: '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.' },
   uvB:       { title: 'UV-B Index',       desc: 'Estimated UV-B radiation index. UV-B causes sunburn and is the main driver of vitamin D production. Intensity depends strongly on solar elevation and cloud cover.' },
   burn:      { title: 'Burn Time',        desc: 'Estimated time to reach one Minimal Erythemal Dose (MED) — the threshold for sunburn — based on the UV index and your selected skin type. This is a guide, not a medical measurement.' },

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>