Software Improvements and Bug Fixes

• minor usability improvements to the JAMS GUI / window layout

New / Improved Model Components

• jams.components.core.TemporalFileInputContext
  • complete rework of the component
  • component allows to iterate over time steps defined in a JAMS timeseries input file
• jams.components.io.TSDataStoreReader
  • adapted to work with new TemporalFileInputContext
• jams.components.io.unidata.EntityCollectionFromList (new)
  
  • extract an entity collection object from a NetCDF file
• jams.components.io.unidata.NetCDFReader3D
  • various improvements
• optas.efficiencies.UniversalEfficiencyCalculator
  • added KGE to the efficiencies calculated by the UniversalEfficiencyCalculator, as well as a weighted version, and a version returning its 3 components r, gamma, beta
• jams.components.calc.DoubleArrayDivide (new)
  
  • added component for dividing all elements of a DoubleArray
• jams.components.indices.ClimateIndicesForest
  • added some outputs
• jams.components.io.DataSerializer (new)
  
  • combines observed and simulated values for different locations into one large list of obervations and simulations
• jams.components.datatransfer.DoubleTransfer
  
  • Added option to copy/overwrite value
• jams.components.data.EntityDoubleAccess (new)
  
  • Added component to get double values by name from an entity and store it

Software Improvements and Bug Fixes

• improvement to the JAMS GUI / window layout
• usability improvements to the Data Explorer
• added option to define standard output data directory via properties file

New / Improved Model Components

• jams.components.io.unidata.NetCDFReader, jams.components.io.unidata.TimeIntervalFromNetCDF
  • read spatio-temporal data from from a NetCDF file
  • creates a time interval attribute from a NetCDF file, e.g. for iterating over all of its time steps
• jams.components.io.TimeIntervalFromDataStore
  • creates a time interval attribute from a datastore, e.g. for iterating over all time steps in an input dataset
• jams.components.aggregate.MinMax
  • calculates min/max of incoming values
• jams.components.aggregate.SpatioTemporalAggregator
  • improved aggregation options for spatio-temporal data
• jams.components.statistics.PercentileCalc
  • caculates percentile values from input data
• jams.components.io.TemporalShapeEntityWriter
  • improved handling of temporary files
• jams.components.io.TemporalShapeEntityWriter
  • added function to auto-create subdirectories based on name

New Model Components

• org.unijena.j2k.inputData.RecalcLanduseStateVars
  • recalculation of landuse state variables during simulation, e.g. for landuse changes
• org.unijena.j2k.topology.ReachSubbasin, org.unijena.j2k.topology.SubbasinArea, org.unijena.j2k.io.SubbasinLink
  • extraction of all HRUs belonging to a reach subbasin as a list
  • calculation of the area of a reach subbasin
• jams.components.indices.SnowLine
  • calculation of snow line elevation

Improvements and Bug Fixes

• minor bug fixes and improvement to the JAMS runtime system and GUI

New Example Model

A new J2K hydrological model for the Dudh Koshi River Basin with all required data and additional components for glacier processes simulation is available in the data folder. Thanks to Santosh Nepal from ICIMOD/Kathmandu for providing this dataset!

New Model Components

• org.unijena.j2k.regionalisation.Regionalisation_IDW is a component that implements interpolation based on Inverse Distance Weighting (IDW) with the following improvements:
  • Intergrating all required functionality in one component without an additional initialization component, it allows to streamline and simplify model structure.
  • In addition to data interpolation, it allows to calculate and output information about average station distance and station elevation difference at each time step, provoding improved insight into the spatial and temporal distribution of station information density.
• jams.components.data.DateComponents allows to extract single components from a date object
• jams.components.data.ScalarToArray allows to collect double scalar(s) into double array(s)
• jams.components.indices.SPICalc, jams.components.indices.DataColllector and jams.components.indices.DateCollector are components for calculation of Standardized Precipitation Index (SPI) and for collecting respective precip and calendar values
• jams.components.calc.DoubleArrayMultiply allow to multiply elements in a double array with one or many double values
• jams.components.data.CalendarComponentChanged allows to detect changes in a component of a date object and thus to perform actions at certain time periods (e.g. monthly, yearly in a daily model)

Improvements and Bug Fixes

• added support for Datastore outputs of TemporalNestedContext
• minor bug fixes and improvement to the JAMS runtime system and GUI

Revision 01

• minor fixes in the Dudh Koshi example model