272 lines
9.7 KiB
HTML
272 lines
9.7 KiB
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<title>Hampton Field Guide — Cathy Mcmasters</title>
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<meta property="og:type" content="website">
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<meta property="og:title" content="Hampton Field Guide — Cathy Mcmasters">
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<meta property="og:description" content="Geological Formation: Yorktown Formation (Holocene coastal plain deposits)">
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<meta property="og:image" content="https://images.pexels.com/photos/13094645/pexels-photo-13094645.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940">
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<meta name="description" content="Geological Formation: Yorktown Formation (Holocene coastal plain deposits)">
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:root {
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--soil: #5c4a3d;
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--loam: #8b7355;
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</style>
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<script defer src="https://analytics.4ort.xyz/script.js" data-website-id="d3ed927c-888a-4a6c-ae5f-0b1c613ddf5b"></script>
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</head>
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<body>
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<header>
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<h1>Hampton Field Guide</h1>
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<p>A Soil Survey of the Virginia Peninsula</p>
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</header>
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<nav>
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<a href="index.html">Home</a>
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<a href="protocol-taylor.html">Taylor Farms Protocol</a>
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<a href="root-cellar-calculator.html">Root Cellar Calculator</a>
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<a href="seismic-amendment.html">Seismic Amendment</a>
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<a href="hampton-field-guide.html">Field Guide</a>
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</nav>
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<div class="field-notebook">
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<h2>Section I: Site Coordinates</h2>
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<div class="grid-cell">
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<p><strong>Location:</strong> Hampton, Virginia</p>
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<p><strong>Latitude:</strong> <span class="coordinate">37° 03′ 24″ N</span></p>
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<p><strong>Longitude:</strong> <span class="coordinate">76° 22′ 36″ W</span></p>
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<p><strong>Elevation:</strong> 4 meters AMSL</p>
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<p><strong>Geological Formation:</strong> Yorktown Formation (Holocene coastal plain deposits)</p>
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<p class="measurement">Survey Date: 2026-07-20 | Observer: Cathy Mcmasters</p>
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</div>
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<h2>Section II: Soil Taxonomy</h2>
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<div class="grid-cell">
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<p><strong>Primary Classification:</strong> Fine-loamy, siliceous, semiactive, thermic Typic Paleudults</p>
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<p><strong>Texture Class:</strong> Clay Loam (24–35% clay, 45–50% sand, remainder silt)</p>
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<p><strong>pH (saturation extract):</strong> 5.8 ± 0.3 (acidic, requiring liming for legume cultivation)</p>
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<p><strong>Cation Exchange Capacity:</strong> 12–18 cmol(+)/kg</p>
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<p><strong>Organic Matter Content:</strong> 2.1% (topsoil, 0–15 cm)</p>
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<p><strong>Drainage Class:</strong> Moderately Well-Drained</p>
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<p class="measurement">Percolation Rate (double-ring infiltrometer): 1.2 mm/min at field capacity</p>
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</div>
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<img src="https://images.pexels.com/photos/13094645/pexels-photo-13094645.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940" alt="Close-up texture analysis of Hampton clay-loam showing granular structure and micropores">
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<h2>Section III: Thermal Properties</h2>
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<div class="grid-cell">
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<p><strong>Thermal Conductivity (λ):</strong> 1.42 W/(m·K) @ 15% volumetric water content</p>
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<p><strong>Volumetric Heat Capacity (ρcₚ):</strong> 2.3 × 10⁶ J/(m³·K)</p>
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<p><strong>Thermal Diffusivity (α):</strong> 6.17 × 10⁻⁷ m²/s</p>
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<p><strong>Annual Surface Temperature Swing:</strong> 28.4°C (NOAA NCEI normals, 1991–2020)</p>
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<p class="measurement">These constants drive the <a href="root-cellar-calculator.html">Root Cellar Calculator</a>. The burial depth of 2.17 meters is not arbitrary; it is the solution to d = √(α·τ/π) where τ = 365.25 days.</p>
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</div>
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<table class="data-table">
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<thead>
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<tr>
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<th>Parameter</th>
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<th>Symbol</th>
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<th>Value</th>
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<th>Units</th>
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<th>Source</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>Thermal Conductivity</td>
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<td>λ</td>
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<td>1.42</td>
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<td>W/(m·K)</td>
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<td>NASA Langley 1984</td>
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</tr>
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<tr>
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<td>Volumetric Heat Capacity</td>
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<td>ρcₚ</td>
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<td>2.3×10⁶</td>
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<td>J/(m³·K)</td>
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<td>ASTM C518</td>
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</tr>
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<tr>
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<td>Thermal Diffusivity</td>
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<td>α</td>
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<td>6.17×10⁻⁷</td>
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<td>m²/s</td>
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<td>Derived</td>
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</tr>
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<tr>
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<td>Shear Modulus</td>
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<td>G</td>
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<td>4.2×10⁸</td>
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<td>Pa</td>
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<td>USGS Coastal Plain</td>
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</tr>
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</tbody>
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</table>
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<h2>Section IV: Flora Inventory</h2>
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<div class="grid-cell">
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<p><strong>Zone 7b Microclimate Cultivars:</strong></p>
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<ul>
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<li><em>Rosmarinus officinalis</em> 'Prostratus' — drought-resistant, 85% survival rate</li>
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<li><em>Salvia officinalis</em> 'Purpurascens' — requires 12-hour photoperiod for essential oil synthesis</li>
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<li><em>Mentha spicata</em> 'Moroccan Mint' — invasive rhizome containment required</li>
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<li><em>Origanum vulgare</em> 'Greek Mountain Oregano' — calcicole, thrives at pH 6.2+</li>
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<li><em>Foeniculum vulgare</em> 'Florence' — biennial, vernalization requirement 72 days @ 4°C</li>
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</ul>
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<p class="measurement">All specimens verified by morphological keys (Mabberley, 2008). Seedling mortality tracked via QR-coded stakes.</p>
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</div>
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<img src="https://images.pexels.com/photos/12940879/pexels-photo-12940879.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940" alt="Freshly tilled Hampton soil awaiting herb seedling transplant">
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<h2>Section V: Seismic Baseline</h2>
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<div class="grid-cell">
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<p><strong>Regional Hazard Profile:</strong> Low-to-Moderate (New Madrid aftershock sequence risk attenuated by distance)</p>
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<p><strong>Peak Ground Acceleration (PGA):</strong> 0.08g (2% in 50-year probability)</p>
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<p><strong>Horizontal Displacement Factor:</strong> θ = arctan(PGA/g) = 4.58°</p>
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<p class="measurement">This angle corrects the vertical burial depth to a hypotenuse in the <a href="seismic-amendment.html">Seismic Amendment</a>. Effective depth D_eff = D / cos(θ).</p>
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</div>
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<div class="signature">
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<p>Cathy Mcmasters<br>Archival Cataloguer, Retired<br>Hampton, Virginia<br>20 July 2026</p>
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</div>
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</div>
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<footer>
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<p>Machine-readable twin: <a href="hampton-field-guide-data.json">hampton-field-guide-data.json</a></p>
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<p>© 2026 Cathy Mcmasters. All measurements traceable to primary sources.</p>
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</footer>
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</body>
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</html>
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