ccrtm

Coupled Chain Radiative Transfer Models

CRAN Package

A set of radiative transfer models to quantitatively describe the absorption, reflectance and transmission of solar energy in vegetation, and model remotely sensed spectral signatures of vegetation at distinct spatial scales (leaf,canopy and stand). The main principle behind ccrtm is that many radiative transfer models can form a coupled chain, basically models that feed into each other in a linked chain (from leaf, to canopy, to stand, to atmosphere). It allows the simulation of spectral datasets in the solar spectrum (400-2500nm) using leaf models as PROSPECT5, 5b, and D which can be coupled with canopy models as 'FLIM', 'SAIL' and 'SAIL2'. Currently, only a simple atmospheric model ('skyl') is implemented. Jacquemoud et al 2008 provide the most comprehensive overview of these models <doi:10.1016/j.rse.2008.01.026>.


Team


Insights

Last 30 days

This package has been downloaded 219 times in the last 30 days. More than a random curiosity, but not quite a blockbuster. Still, it's gaining traction! The following heatmap shows the distribution of downloads per day. Yesterday, it was downloaded 7 times.

Sun
Mon
Tue
Wed
Thu
Fri
Sat
3 downloadsMar 16, 2025
4 downloadsMar 17, 2025
11 downloadsMar 18, 2025
4 downloadsMar 19, 2025
13 downloadsMar 20, 2025
8 downloadsMar 21, 2025
4 downloadsMar 22, 2025
7 downloadsMar 23, 2025
8 downloadsMar 24, 2025
4 downloadsMar 25, 2025
3 downloadsMar 26, 2025
4 downloadsMar 27, 2025
5 downloadsMar 28, 2025
1 downloadsMar 29, 2025
5 downloadsMar 30, 2025
6 downloadsMar 31, 2025
11 downloadsApr 1, 2025
16 downloadsApr 2, 2025
9 downloadsApr 3, 2025
3 downloadsApr 4, 2025
6 downloadsApr 5, 2025
9 downloadsApr 6, 2025
18 downloadsApr 7, 2025
4 downloadsApr 8, 2025
6 downloadsApr 9, 2025
2 downloadsApr 10, 2025
9 downloadsApr 11, 2025
24 downloadsApr 12, 2025
5 downloadsApr 13, 2025
7 downloadsApr 14, 2025
0 downloadsApr 15, 2025
0 downloadsApr 16, 2025
0 downloadsApr 17, 2025
0 downloadsApr 18, 2025
0 downloadsApr 19, 2025
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The following line graph shows the downloads per day. You can hover over the graph to see the exact number of downloads per day.

Last 365 days

This package has been downloaded 2,569 times in the last 365 days. Consider this 'mid-tier influencer' status—if it were a TikTok, it would get a nod from nieces and nephews. The day with the most downloads was Sep 11, 2024 with 31 downloads.

The following line graph shows the downloads per day. You can hover over the graph to see the exact number of downloads per day.

Data provided by CRAN


Binaries


Dependencies

  • Imports4 packages
  • Linking To1 package