search

ropensci / MODIStsp

An "R" package for automatic download and preprocessing of MODIS Land Products Time Series
https://docs.ropensci.org/MODIStsp
GNU General Public License v3.0
155 stars 50 forks source link

Problems of processing MCD19A1 and MCD19A3 #240

Closed donghaiwu closed 3 years ago

donghaiwu commented 3 years ago

Dear developers,

I am now processing MCD19A1 and MCD19A3 datasets for Amazon regions. I want to mosaic and re-project 20 tiles with MODIStsp. However, for MCD19A1 the tool said "Processing for MCD19* products is possible only for one tile at a time!". I am wondering why? MCD19A1 is special compared with other datasets? In addition, the MCD19A3 product provides three coefficients (weights) of the RossThick/Li-Sparse (RTLS) BRDF model, and it is very important for remote sensing research. However, I can not find it in the list of MODIStsp. So, could you please provide me some feedback for these questions? Thanks a lot!

Donghai

ranghetti commented 3 years ago

Dear @donghaiwu , the reason of the anomaly affecting product MCD19A1 is explained here: https://github.com/ropensci/MODIStsp/issues/176#issuecomment-508760417. Regarding MCD19A3, it is planned to be added (#238). Since MODIStsp is not under development (I can manage enhanements only in the spare time), I cannot say you when planned products will be actually added.