"""Tasseled Cap transformation coefficients for various Earth Engine datasets."""
# Sentinel-2 MSI Level 1C coefficients
[docs]
SENTINEL2_1C = {
"bands": (
"B1",
"B2",
"B3",
"B4",
"B5",
"B6",
"B7",
"B8",
"B8A",
"B9",
"B10",
"B11",
"B12",
),
"TCB": (
0.2381,
0.2569,
0.2934,
0.3020,
0.3099,
0.3740,
0.4180,
0.3580,
0.3834,
0.0103,
0.0020,
0.0896,
0.0780,
),
"TCG": (
-0.2266,
-0.2818,
-0.3020,
-0.4283,
-0.2959,
0.1602,
0.3127,
0.3138,
0.4261,
0.1454,
-0.0017,
-0.1341,
-0.2538,
),
"TCW": (
0.1825,
0.1763,
0.1615,
0.0486,
0.0170,
0.0223,
0.0219,
-0.0755,
-0.0910,
-0.1369,
0.0003,
-0.7701,
-0.5293,
),
}
# Landsat 8 OLI Surface Reflectance (Collection 2)
[docs]
LANDSAT8_SR = {
"bands": ("SR_B2", "SR_B3", "SR_B4", "SR_B5", "SR_B6", "SR_B7"),
"TCB": (0.2043, 0.4158, 0.5524, 0.5741, 0.3124, 0.2303),
"TCG": (-0.1603, -0.2819, -0.4934, 0.7940, -0.0002, -0.1446),
"TCW": (0.0315, 0.2021, 0.3102, 0.1594, -0.6806, -0.6109),
}
# Landsat 8 OLI TOA Reflectance
[docs]
LANDSAT8_TOA = {
"bands": ("B2", "B3", "B4", "B5", "B6", "B7"),
"TCB": (0.3561, 0.3972, 0.3904, 0.6966, 0.2286, 0.1596),
"TCG": (-0.3344, -0.3544, -0.4556, 0.6966, -0.0242, -0.2630),
"TCW": (0.2626, 0.2141, 0.0926, 0.0656, -0.7629, -0.5388),
}
# Landsat 8 OLI are usable for Landsat 9 OLI-2 per Zhai et al. 2022
[docs]
LANDSAT9_SR = LANDSAT8_SR
[docs]
LANDSAT9_TOA = LANDSAT8_TOA
# Landsat 7 ETM+ TOA
[docs]
LANDSAT7_TOA = {
"bands": ("B1", "B2", "B3", "B4", "B5", "B7"),
"TCB": (0.3561, 0.3972, 0.3904, 0.6966, 0.2286, 0.1596),
"TCG": (-0.3344, -0.3544, -0.4556, 0.6966, -0.0242, -0.2630),
"TCW": (0.2626, 0.2141, 0.0926, 0.0656, -0.7629, -0.5388),
}
# Landsat 5 TM Raw DN
[docs]
LANDSAT5_DN = {
"bands": ("B1", "B2", "B3", "B4", "B5", "B7"),
"TCB": (0.2909, 0.2493, 0.4806, 0.5568, 0.4438, 0.1706),
"TCG": (-0.2728, -0.2174, -0.5508, 0.7221, 0.0733, -0.1648),
"TCW": (0.1446, 0.1761, 0.3322, 0.3396, -0.6210, -0.4186),
}
# Landsat 5 TM Surface Reflectance
[docs]
LANDSAT5_SR = {
"bands": ("SR_B1", "SR_B2", "SR_B3", "SR_B4", "SR_B5", "SR_B7"),
"TCB": (0.1509, 0.1973, 0.3279, 0.3406, -0.7112, -0.4572),
"TCG": (-0.1603, -0.2819, -0.4934, 0.7940, -0.0002, -0.1446),
"TCW": (0.0315, 0.2021, 0.3102, 0.1594, -0.6806, -0.6109),
}
# Landsat 4 TM Raw DN
[docs]
LANDSAT4_DN = {
"bands": ("B1", "B2", "B3", "B4", "B5", "B7"),
"TCB": (0.3037, 0.2793, 0.4743, 0.5585, 0.5082, 0.1863),
"TCG": (-0.2848, -0.2435, -0.5435, 0.7243, 0.0840, -0.1800),
"TCW": (0.1509, 0.1973, 0.3279, 0.3406, -0.7112, -0.4572),
}
# Landsat 4 TM Surface Reflectance
[docs]
LANDSAT4_SR = {
"bands": ("SR_B1", "SR_B2", "SR_B3", "SR_B4", "SR_B5", "SR_B7"),
"TCB": (0.2043, 0.4158, 0.5524, 0.5741, 0.3124, 0.2303),
"TCG": (-0.1603, -0.2819, -0.4934, 0.7940, -0.0002, -0.1446),
"TCW": (0.0315, 0.2021, 0.3102, 0.1594, -0.6806, -0.6109),
}
# MODIS NBAR
[docs]
MODIS_NBAR = {
"bands": (
"Nadir_Reflectance_Band1",
"Nadir_Reflectance_Band2",
"Nadir_Reflectance_Band3",
"Nadir_Reflectance_Band4",
"Nadir_Reflectance_Band5",
"Nadir_Reflectance_Band6",
"Nadir_Reflectance_Band7",
),
"TCB": (0.4395, 0.5945, 0.2460, 0.3918, 0.3506, 0.2136, 0.2678),
"TCG": (-0.4064, 0.5129, -0.2744, -0.2893, 0.4882, -0.0036, -0.4169),
"TCW": (0.1147, 0.2489, 0.2408, 0.3132, -0.3122, -0.6416, -0.5087),
}
# Platform to coefficients mapping
