metric_albedo_l8: Calculates the albedo from a landsat 8 image using the...

In jvitorpinto/agmet: Utilities for agricultural meteorology

Calculates the albedo from a landsat 8 image using the procedure described by Silva et al. (2016).

Description

Calculates the broadband albedo through the integration of narrow band reflectance for bands 2, 3, 4, 5, 6, and 7 of Landsat 8.

Usage

metric_albedo_l8(b2, b3, b4, b5, b6, b7, tau, alpha_atm = 0.03)

Arguments

b2	Landsat 8 top-of-atmosphere reflectance at band 2
b3	Landsat 8 top-of-atmosphere reflectance at band 3
b4	Landsat 8 top-of-atmosphere reflectance at band 4
b5	Landsat 8 top-of-atmosphere reflectance at band 5
b6	Landsat 8 top-of-atmosphere reflectance at band 6
b7	Landsat 8 top-of-atmosphere reflectance at band 7
tau	atmospheric transmissivity
alpha_atm	atmospheric albedo (see details)

Details

The atmospheric albedo can be obtained from a radiative transfer model, such as MODTRAN. It is usually a value between 0.025 and 0.040. Here we use a 'default' value of 0.03, but we recommend you to adapt the value according to your needs.

jvitorpinto/agmet documentation built on April 17, 2025, 5:05 p.m.