<div dir="ltr"><div>Dear Vero,</div><div><br></div><div>I could finally load the landsat 8 L1C data, is just two bands 4 and 5 for NDVI calculation, didn't created a mapset just used PERMANT, but my workflow is</div><div><br></div><div>Step 1 - DN>Radiance with <i>i.landsat.toar <br></i></div><div><i>
</i>Step<i> 2- Raniance> Surface_Reflectance with <i>i.atcorr </i></i>using different methods DOS2 and DOS4 to compare<i>
</i></div><div><u><i><br></i></u></div><div><u>For step 1: to get radinace from DN</u></div><div><br></div><div><i></i></div><div>A) set working directory where the data is:</div><div><br></div><div>cd "C:\Users\Gabriel\Documents\grassdata\LC08_L1TP_227083_20180315_20180320_01_T1"<br> </div><div><br></div><div>B) calculate Radiance for each band separately :</div><div><br></div><div>i.landsat.toar -r input=LC08_L1TP_227083_20180315_20180320_01_T1_B4@PERMANENT output=LC08_L1TP_227083_20180315_20180320_01_T1_B4_toar metfile=C:\Users\Gabriel\Documents\grassdata\LC08_L1TP_227083_20180315_20180320_01_T1\LC08_L1TP_227083_20180315_20180320_01_T1_MTL.txt sensor=oli8 date=2018-03-15 sun_elevation=45.06637424 product_date=2018-03-20</div><div><br></div><div>however go the error was:</div><div><div><img src="cid:ii_jwze4cpl0" alt="image.png" style="margin-right: 25px;" width="1000" height="81"><br></div></div><div>appears not to be reading the data from PERMANENT?<br></div><div>Thanks a lot</div><div>Gabriel<br></div><div><br></div><div><br></div><div><br></div><div><br></div></div>