Database Reference
In-Depth Information
number of pixels for each of the corresponding value in Figure 15.8 shows the quality
of the soil attributes.
15.4.3.2 Processing AWAP Map
The AWAP database is developed to monitor the state and trend of the terrestrial
water balance of the Australian continent, using model-data fusion methods to
combine both measurements and modeling. The AWAP database provided weekly
gridded map of the Australian continent on a latitude-longitude matrix (813 × 670)
with 0.5 degree resolution. Data files were available as .zip folders from the AWAP
server. Inside these folders multiple NetCDF files were stored, each of these .nc files
was representing weekly combined Australian gridded maps for 16 environmental
attributes, namely, radiation (MJ/m
2
), maximum temperature (°C), minimum tem-
perature (°C), rainfall (mm), upper layer soil moisture (fraction 0-1), lower layer
soil moisture (fraction 0-1), evaporation (soil+vegetation) (mm), total transpiration
(mm), soil evaporation (mm), potential evaporation (mm), local discharge (runoff +
drainage) (mm), surface runoff (mm), open water evaporation (“pan” equiv) (mm),
deep drainage (mm), sensible heat flux (MJ/m
2
), and latent heat flux (MJ/m
2
). AWAP
data adaptor was developed and used to download and unzip all AWAP folders auto-
matically, process the sequential NetCDF gridded data files to extract all time series
data. Figure 15.9 provides visual representation of the time series extraction process.
Sixteen time series were extracted for Tullochgorum, Tasmania, during the period
December 2010 to June 2012.
15.4.4 s
atellite
i
mage
P
roCessing
nasa moDis
The MODIS is a multidisciplinary, keystone instrument on Aqua and Terra space-
craft, providing a wide array of multispectral, daily observations of land, ocean, and
atmosphere features at spatial resolutions between 250 and 1000 m. The images are
FIGURE 15.9
AWAP data processing.
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