anchor.diff:                  maxPrecipitationAmountInMillimeter,minPrecipitationAmountInMillimeter,precipitationProbabilityMoreOrEqualThan0_1MillimeterInPercent,
                   precipitationProbabilityMoreThan0_2MillimeterInPercent,precipitationProbabilityMoreThan1_4MillimeterInPercent,precipitationProbabilityMoreThan4_4MillimeterInPercent,
                   precipitationProbabilityMoreThan20MillimeterInPercent,precipitationProbabilityInPercent,thunderstormProbabilityInPercent,mostSignificantWeatherCode,
  -                mostSignificantWeatherCodeTraditional,effectiveCloudCoverInOcta,effectiveCloudCoverInPercent,freezingRainProbabilityInPercent,groundFrostProbabilityInPercent,hailProbabilityInPercent,
  +                mostSignificantWeatherCodeTraditional,effectiveCloudCoverInOkta,effectiveCloudCoverInPercent,freezingRainProbabilityInPercent,groundFrostProbabilityInPercent,hailProbabilityInPercent,
                   snowfallProbabilityInPercent,minAirTemperatureNearGroundInCelsius,averageRelativeHumidityInPercent,averageWindSpeedInMeterPerSecond,averageWindSpeedInKnots,
                   averageWindSpeedInMilesPerHour,averageWindSpeedInBeaufort,averageWindSpeedInKilometerPerHour,averageAirPressureAtSeaLevelInHectoPascal,
                   maxUVIndexWithClouds,minVisibilityInMeter
  
positive.code: + The "weatherCodeTraditional" parameter refers to the WMO code table "4677".
  + The mostLikelyHighAirTemperature equals maxAirTemperature plus airTemperatureError.
  + The mostLikelyLowAirTemperature equals minAirTemperature minus airTemperatureError.
  + The maxUVIndexWithClouds parameter is calculated based on clearSkyUVIndex and effectiveCloudCoverInOcta values
  + The minVisibilityInMeter parameters for PT3H, PT6H, PT12H and PT24H are calculated as a min value of the visibilityInMeter parameter from PT0S for the last 3, 6, 12 and 24 hours respectively,
      including marginal values. E.g for PT3H period 4 PT0S values are used to cover the full three hours (validUntil-3h,validUntil-2h,validUntil-1h and validUntil).
  + The min/max FeelsLikeTemperatureIn Celsius/Fahrenheit/Kelvin parameters for PT3H, PT6H, PT12H and PT24H are calculated as a min/max value of the feelsLikeTemperatureIn Celsius/Fahrenheit/Kelvin parameter from PT0S for the last 3, 6, 12 and 24 hours respectively, including marginal values. E.g for PT3H period 4 PT0S values are used to cover the full three hours (validUntil-3h,validUntil-2h,validUntil-1h and validUntil).
  
negative.code: - **PT0S** -    airTemperatureInCelsius,airTemperatureInFahrenheit,airTemperatureInKelvin,dewPointTemperatureInCelsius,dewPointTemperatureInFahrenheit,
                  dewPointTemperatureInKelvin,feelsLikeTemperatureInCelsius,feelsLikeTemperatureInFahrenheit,feelsLikeTemperatureInKelvin,airPressureAtSeaLevelInHectoPascal,
                  windSpeedInMeterPerSecond,windSpeedInKnots,windSpeedInMilesPerHour,windSpeedInBeaufort,windSpeedInKilometerPerHour,windDirectionInDegree,
                  effectiveCloudCoverInOkta,effectiveCloudCoverInPercent,totalCloudCoverInOkta,cloudCoverLowerThan2000MeterInOkta,cloudCoverLowerThan5000MeterInOkta,cloudBaseHeightInMeter,relativeHumidityInPercent,
                  visibilityInMeter,weatherCode,weatherCodeTraditional,clearSkyUVIndex,uvIndexWithClouds,airTemperatureErrorInKelvin,windSpeedErrorInKnots,freezingLevelHeightInMeter,
                  freezingRainProbabilityInPercent,noSnowPossibleBelowHeightInMeter,snowCertainAboveHeightInMeter,saturationDeficitInHectoPascal,
                  airTemperatureNearGroundInCelsius,visibilityProbabilityLessThan200MeterInPercent,visibilityProbabilityLessThan1000MeterInPercent,
  