Difference between revisions of "Calculation of long term average crop indicators"

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{{Scientific}}
 
{{Scientific}}
The calculation of long term averages is done for each crop indicator and for each individual geographical feature on a 10 daily base. A dedicated software package called [[LTA_YIELD]] is developed to do all calculations.
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The calculation of 10-daily statistics over the entire archive, such as the long term averages, minimum, maximum, standard deviation and count, is done for each crop indicator and for each individual geographical feature. A dedicated software package called [[LTA_YIELD]] is developed to do all calculations.
  
 
For the following basic parameters average values are calculated:
 
For the following basic parameters average values are calculated:
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* Loss to subsoil
 
* Loss to subsoil
  
 
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The 10-daily statistics based on weather observations is stored in tables:
Besides the average also minimum, maximum, standard deviation and count are calculated (grid and administrative resolution only). The long term average data based on weather observations is stored in tables:
 
 
*{{Object|SIMYIELD_EMU_LTA}}
 
*{{Object|SIMYIELD_EMU_LTA}}
 
*{{Object|SIMYIELD_GRID_LTA}}
 
*{{Object|SIMYIELD_GRID_LTA}}
 
*{{Object|SIMYIELD_REGION_LTA}}
 
*{{Object|SIMYIELD_REGION_LTA}}
  
The long term average data based on forecasted weather is stored in tables:  
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The 10-daily statistics based on forecasted weather is stored in tables:  
 
*{{Object|SIMYIELD_HIS_EMU_LTA}}
 
*{{Object|SIMYIELD_HIS_EMU_LTA}}
 
*{{Object|SIMYIELD_HIS_GRID_LTA}}
 
*{{Object|SIMYIELD_HIS_GRID_LTA}}

Latest revision as of 17:01, 3 February 2014



The calculation of 10-daily statistics over the entire archive, such as the long term averages, minimum, maximum, standard deviation and count, is done for each crop indicator and for each individual geographical feature. A dedicated software package called LTA_YIELD is developed to do all calculations.

For the following basic parameters average values are calculated:

  • Potential above ground biomass
  • Water limited above ground biomass
  • Potential storage organs biomass
  • Water limited storage organs biomass
  • Potential Leaf Area Index
  • Water limited Leaf Area Index
  • Crop development stage (DVS)
  • Relative soil moisture
  • Total water consumption
  • Total water requirement
  • volumetric soil moisture content in rooted zone (FSM)
  • volumetric soil moisture content in not rooted zone (FSMUR)
  • Leaves died by cold
  • Run off
  • Soil evaporation
  • Loss to subsoil

The 10-daily statistics based on weather observations is stored in tables:

The 10-daily statistics based on forecasted weather is stored in tables: