essential
likely
maybe
probably not
Front (prompt)
False-color (CIR) composite on Landsat TM — band-to-color-gun mapping?
Plain English (default view) — short, conversational, lightly seasoned with science
🔬 Scientific / formula (revealed on click) — markdown + $$…$$ ok
**Band Combination 4-3-2** (color-infrared, CIR) on Landsat TM: - 🟥 R display gun ← **Band 4 (NIR)** → 🌳 vegetation glows red - 🟩 G display gun ← **Band 3 (Red)** - 🟦 B display gun ← **Band 2 (Green)** Each band feeds the **next display gun up** — one color shifted. ⚠️ On Landsat 8/9 **OLI**: R=B5, G=B4, B=B3. 🔎 **Field check:** if vegetation looks bright red, you're looking at CIR.
💡 Mnemonic / memory aid (shown on hover)
False color = 4-3-2 (one higher than true color). NIR → Red gun = vegetation glows BRIGHT RED. If veg is red in your image, it's CIR.
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