Crop model
- Thread starter jinmuluo
- Start date
Hi Jinmu,
If you want to set a custom sowing window, you can do that by modifying the four
Unexpected behavior will result if you specify a sowing window that spans two calendar years, so make sure max >= min. I hope to merge new code fixing this soon.
If you want to specify a sowing date that varies more than by hemisphere, let me know and I can walk you through it—documentation is coming later this month.
If you want to set a custom sowing window, you can do that by modifying the four
(min/max)_(N/S)H_planting_date variables in the parameter file netCDF. min/max refer to the start and end, respectively, of the sowing window. (Set them to the same date to prescribe a sowing date.) N/S refer to northern or southern hemisphere, respectively—note that these variables control entire hemispheres. (Northern hemisphere is defined as latitude > 0.)Unexpected behavior will result if you specify a sowing window that spans two calendar years, so make sure max >= min. I hope to merge new code fixing this soon.
If you want to specify a sowing date that varies more than by hemisphere, let me know and I can walk you through it—documentation is coming later this month.
Hi Sam,
Thank you for your detailed explanations! Last question, could you please tell me the name of this "parameter file netCDF"
best,
Jinmu
Hi Keith,
Do you know where I can find the N output variables related to crop aboveground/belowground biomass? Thank you
Best,
I'm not sure exactly, but you could search the master field list for crop-specific variables:
Also, it seems like you could output most nitrogen-related variables at a column-level to get at these variables for specific crops.
@wwieder , @dll@ucar_edu , any ideas here?
Also, it seems like you could output most nitrogen-related variables at a column-level to get at these variables for specific crops.
@wwieder , @dll@ucar_edu , any ideas here?
Sorry for my delay on this, are you just looking for TOTVEGC and TOTVEGN? If you write patch or colum level output this would be specific for crop N pools. Alternatively LEAFN, FROOTN, CROPPROD1N at a PFT level would be the above and belowground components of the total vegetation pools.
Hi Sam, @samrabin
Can we specify different sowing dates for each year? I don't know how to achieve this by changing the parameter file. Or could we change the date manually in the code by assigning the date to different years, if possible, which file do you think I could start with? Thank you so much.
Best,
Jinmu Luo
You're right that it's not possible to do this in the parameter file. However, it is possible using a geographically gridded sowing date input file. The files in the input data repository at lnd/clm2/cropdata/calendars/processed/ show what these should look like. If you tell me the version of the model you're working with, I can give you more information.