2. tm5_sample Conversion of the Digital Number (DN) to Spectral Radiance (L)
• 加入tm5_sample的Layer6
• Step1: L = LMIN + (LMAX - LMIN) * DN / 255
tm5_L
14.362
Where
L = Lλ= Spectral radiance (Layer6)
LMIN = 1.238 (Spectral radiance of DN value 1)
• Step2:
tm5_Tc
LMAX = 15.600 (Spectral radiance of DN value 255)
DN = Digital Number
K1= Calibration Constant 1 (607.76)
K2 = Calibration Constant 2 (1260.56)
TB = Surface Temperature
• Step3: 轉成溫度(減273)
tm5_Tc

3. tm5_sample NDVI
• 加入tm5_sample的Layer4、Layer3
• Layer4:NIR
• Layer3:R
• Int((Float("NIR" - "R") / Float("NIR" + "R") + 1) * 125)
tm5_NDVI

4. 計算tm5_Tc和tm5_L相關係數
BOX
• Draw一個範圍輸出as extent
• 用conversion>from raster>raster to point，Environment中範圍設
BOX，將tm5_Tc和tm5_L轉成point
• Spatial Join tm5_Tc和tm5_L
• 用Excel開啟dbf計算tm5_Tc和tm5_L相關係數