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

From Agri4castWiki
Jump to: navigation, search
 
(6 intermediate revisions by the same user not shown)
Line 1: Line 1:
 
{{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.
+
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:
Line 9: Line 9:
 
* Potential Leaf Area Index
 
* Potential Leaf Area Index
 
* Water limited Leaf Area Index
 
* Water limited Leaf Area Index
 +
* Crop development stage (DVS)
 +
* Relative soil moisture
 +
* Total water consumption
 
* Total water requirement
 
* Total water requirement
* Total water consumption
+
* volumetric soil moisture content in rooted zone (FSM)
* Relative soil moisture
+
* volumetric soil moisture content in not rooted zone (FSMUR)
* Crop development stage
+
* Leaves died by cold
 
+
* Run off
Besides the average also minimum, maximum, standard deviation and count are calculated (grid and nuts resolution only).
+
* Soil evaporation
 
+
* Loss to subsoil
The data are stored in separate tables:
 
*{{Object|LONG_TERM_AVERAGE_CROP_YIELD}}
 
*{{Object|LONG_TERM_AVERAGE_GRID_YIELD}}
 
*{{Object|LONG_TERM_AVERAGE_NUTS_YIELD}}
 
  
Each table is available in twofold; one for yields based on observed weather and one for yields based on ECMWF forcasted weather (HIS model).
+
The 10-daily statistics based on weather observations is stored in tables:
 +
*{{Object|SIMYIELD_EMU_LTA}}
 +
*{{Object|SIMYIELD_GRID_LTA}}
 +
*{{Object|SIMYIELD_REGION_LTA}}
  
{{Hidden
+
The 10-daily statistics based on forecasted weather is stored in tables:
|pseudo code
+
*{{Object|SIMYIELD_HIS_EMU_LTA}}
|
+
*{{Object|SIMYIELD_HIS_GRID_LTA}}
}}
+
*{{Object|SIMYIELD_HIS_REGION_LTA}}
  
 
[[Category:Weather Monitoring]]
 
[[Category:Weather Monitoring]]

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: