23. Мэдээллийн сан
Database module provides functions of data
inputting and querying, including Remote sensing
data and ground observation of meteorological
data by .csv file, also another possibility is can be
operating some of preprocess in batch. Duplicate
data also automatically process to eliminated and
exceptional data are marked.
24. Анхан шатны боловсруулалт
Preprocessing module is process to remote sensing data by the
standard methods, which include Projection transformation,
Re-sampling, Geometric correction (GEO), Mosaic (MOS), Radiate
correction (RAD), and Cloud mask (CLD), Atmosphere correction
(ATC) and so on, also calculation of Normalized Difference
Vegetation Index (NDVI) and Land Surface Temperature (LST). Part
of processing applied to use the MODIS Reprojection Tool for Swath
(MRTSWATH) program released by the USGS EROS Data Center.
which is integrated into the sub-module to perform geometric
correction. For drought, composition of daily parameters in three
frequencies is necessary, which are Month, Decade and Pentad.
Also, composition methods of validation were used for all indices.
25. Индекс боловсруулах
Indices module is calculated to remote sensing based several
drought indices which are Vegetation Condition Index (VCI),
Temperature Condition Index (TCI), Vegetation Health Index
(VHI), Normalized Difference Water Index (NDWI), Normalized
Difference Drought Index (NDDI), and Vegetation Supply
Water Index (VSWI). In addition, could be estimate different type
of temporal scales (Month, Dekad, Pentad and Day), and three
kinds of meteorological indices are generating such as Standard
Precipitation Index (SPI), Aridity Index (AI), PED Index and
Standardized Precipitation Evapotranspiration Index (SPEI).
26. Гангийн индекс рүү хөрвүүлэх
The drought model is classified to each index and based on
the Single index and combination index are called in Drought
module in order to saved different forms in this model.
Combination methods not only included max, min, mean,
majority, median of different indices data. Also, another main
combination is the natural zones it could applied by three
different main zones which are selected forest zone, steppe
zone, desert zone by separately subseted drought index.
27. Гангийн зурглал
Analysis module is the achieve drought statistics and analysis in
two scales (over spatial unit and time interval).
Spatial
Time interval