The observation imagery will go through orthorectification, radiometric calibration, atmospheric correction, clipping, Normal Differential Water Index (NDWI) calculation, mask building, silt inversion, and mapping processes to provide decision support on whether pollution happens or the range of pollution.
In 1072, Shen was sent to supervise Wang's program of surveying the building of silt deposits in the Bian Canal outside the capital city.
That bedevilled building works, while silt coated roads and backyards.Some headway has been made.
Archaeological analysis shows that the basin and dock were sealed with silt and debris, and the buildings razed to the ground.
Cesium-134 readings were 370 becquerels per litre while Cesium-137 was 830/litre within a silt fence right outside the reactor building.
Before it was buried under silt, dust and its own collapsing buildings, it was a prosperous hard-working town, the kind where the mule drivers' union would have its own bathhouse (as it apparently did) with steam rooms, a pool and a gym.
Power and water supplies are gradually being restored to the city, though the clean-up efforts have been hampered by heavy layers of silt thrown up by the earthquake that are now building up in many places.
Generally, these dikes were built 5 to 8 miles (8 to 13 km) apart, parallel to the river's banks, to give the river plenty of room to flow in time of spate (flooding), but instead the load of silt slowly spread within the confines of the dikes, building up the riverbed through the centuries, until today it lies above the surrounding countryside.
It is conceivable that on the Nile, Euphrates, or Tigris rivers, following floods, the deposited mud or silt cracked and formed cakes that could be shaped into crude building units to build huts for protection from the weather.
The Saint Lucia government responded to the damage from Debby by repairing damaged buildings and bridges, diversifying crops, and removing silt from major rivers.
