Hydrology Around Falaj Daris Report Write a report (minimum 350 words or two A4 pages) about the Hydrology around Falaj Daris.(In Oman) By reading your re

Hydrology Around Falaj Daris Report Write a report (minimum 350 words or two A4 pages) about the Hydrology around Falaj Daris.(In Oman)

By reading your report, one should be able to answer the below questions:

Is the protection zone referred by UNESCO, correct from hydrological point of view? How to define the best protection zone for the falaj?
Is the effluent flowing in the catchment of Falaj Daris? What is the distance between the effluent and Umm Al Falaj?
What do you (the author) suggest to protect the falaj subsurface part?

Rubric for grading

This practical weight 20 pts.

3 pts for a map describing the topography in colors
3 pts for the discussion of the falaj protection zone
5 pts for a map showing the basin of Nizwa and all natural channels
5 pts for a map showing the falaj route, Shareaa, the effluent pipe and the sub-catchment (Shareaa watershed)
4 pts for the description of the hydrology and environmental challenges of falaj Daris (AGEO)
GIS for Hydrology
Topics:
GISdata sources
DEM
Catchment delineation
2
Learning Goals
create
evaluate
You Investigate the hydrology of the study area
You evaluate the environmental challenges of the study area
analyze
apply
You apply GIS tools to produce visual explanation of the
hydrology
understand
remember
3
EarthExplorer
• The EarthExplorer user
interface is an online
search, discovery, and
ordering tool developed by
the United States
Geological Survey (USGS).
• EarthExplorer supports the
searching of satellite,
aircraft, and other remote
sensing inventories through
interactive and textualbased query capabilities.
• It is free of charge!
4
DEM
• Digital elevation models (DEMs) are arrays of regularly
spaced elevation values referenced horizontally (elevation)
either to a Universal Transverse Mercator (UTM) projection
or to a geographic coordinate system (GCS). The grid cells are
spaced at regular intervals along south to north profiles that
are ordered from west to east.
• SRTM stands for Shuttle Radar
Topography Mission; is a Digital
Elevation Model (DEM) that is derived
from radar interferometry data
obtained during a space shuttle
mission.
5
Catchment delineation
Download
DEM tiles
Mosaic DEM
tiles
Reproject DEM
Derive streams
and basins
Calculate the
flow direction
map
Fill sinks
Define outflow
point
Derive
catchment
Plot the map!
6
Practical 6
Falaj Daris Shariaa
EPSG:4326
57.54952 E
22.97299 N
EPSG:32640
556327.404 E
2540635.393 N
• Nizwa
wastewater
treatment plant
Effluent Pipe
• Solid
waste
landfill
• Solid waste landfill!
Treated wastewater effluent
EPSG:4326
57.51228 E
22.98734 N
EPSG:32640
552504.509 E
2542209.778 N

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