ESUN, Exoatmospheric Solar Irradiance, Beberapa Sensor

ESUN = SI = Exoatmospheric Solar Irradiance (W/m2)

Formosat 2:

Band 1 = 136,7

Band 2 =147,6

Band 3 =93,2

Band 4 =148,8

ALOS-AVNIR2

Band 1 =1959

Band 2=1851

Band 3=1546

Band 4=1061

Landsat 7

Band 1 =1969

Band 2 =1840

Band 3 =1551

Band 4=1044

Band 5 =225,700

Band 7 =82,07

Band 8 =1368

 

Digunakan untuk apa?

Konversi TOA Radiance ke  TOA Reflectance (ρ)

ρ=(π*Lλ *d^2)/(Esunλ *cosθ)

dimana:
ρ = Unitless Planetary Reflectance
Lλ = Spectral Radiance at The Sensor’s Aperture
d2 = Earth-Sun Distance in Astronomical Units
ESUNλ = Mean Solar Exoatmospheric Irradiances
θ = Solar Zenith Angle in Degrees

1 Komentar

  1. selamat pagi pak. saya mau nanya, utk ESUN landsat 8 sesuai waktu akuisisi citra bisa didapatkan dimana ya pak? terimakasih sebelumnya pak

    Suka

Tinggalkan Komentar

Isikan data di bawah atau klik salah satu ikon untuk log in:

Logo WordPress.com

You are commenting using your WordPress.com account. Logout /  Ubah )

Gambar Twitter

You are commenting using your Twitter account. Logout /  Ubah )

Foto Facebook

You are commenting using your Facebook account. Logout /  Ubah )

Connecting to %s