coalaApiDocs

Postaman templates for COALA REST API endpoints

• For the NNI and MZM indicators

Recipes

Debug intermidiate steps of the MZM indicator computation

• Prepare an ordinary mzm request specifying the time period (dateFrom and dateTo parameters) and area to be processed (e.g. with geometry and srcSrid parameters)
• Set output format to TIFF with the format=image/tiff parameter.
• Add the debug={stage} parameter where {stage} is one of:
  • ndvi to get the daily interpolated NDVI data
  • et to get the daily et0 values
  • startend to the get the computed vegetation period (according to startValue, endValue and minPeriodLength request parameters) for each pixel. The first band provides the number of days since dateFrom until the beginning of the vegetation period and the second band the number of days since dateFrom to the end of the vegetation perdiod. E.g. if dateFrom=2020-10-01, first band has a value of 10 and second band a value of 70, then the vegetation period of this pixel was between 2020-10-11 and 2020-12-20.
  • raw MZM values between standarization (before applying the mzm = k * ((100 * mzm) / mean(mzm)) - 100 transformation) - a sum of (slope * NDVI + const) * ET0 over the vegetation period.

Debug intermidiate steps of the NNI indicator computation

• Prepare an ordinary mzm request specifying the time period (dateFrom and dateTo parameters) and area to be processed (e.g. with geometry and srcSrid parameters)
• Set output format to TIFF with the format=image/tiff parameter.
• Add the debug={stage} parameter where {stage} is one of:
  • mtci to get MTCI value
  • mtci2 to get the nominator of the NNI fraction - m1 * MTCI + b1
  • ndvi to get the daily interpolated NDVI data for the dateFrom - dateTo period
  • et to get the daily et0 values for the dateFrom - dateTo period
  • biomass to get the biomass estimates computed as cumulated daily a3 * (andvi * NDVI + bndvi) * ET0 + b3
  • biomass2 to get the denominator of the NNI fraction - a2 * biomass^(1 - m2)