Matt
Porter
Elizabeth
Caprotti
Kromma
Kill Geomorphology
Introduction:
Hydrologic
responses in river basins have drastically changed due to increased
urbanization. Impervious surfaces go
along hand in hand with urbanization and are everywhere due to urban
sprawl. Impervious surfaces affect the
way hydrological systems work by channeling large quantities into one area
instead of letting the earth naturally absorb the water during a storm. Detention ponds were created in order to
catch storm water in order for it to be released in controlled amounts to
prevent on-site peak flows. With the increase of urbanization impervious
surfaces are being built all the time.
This means that the hydrological systems are constantly changing as well
due to the increased runoff from impervious surfaces.
Methods:
Some
of the data involving the streams in the Kromma Kill will be given to us by our
professor (Dr.Meierdiercks) since this her area of expertise. Other layers such as roads, base map,
impervious, and pervious surfaces will be able to be found in places such as
the NYS GIS Clearinghouse online. This
data will allow us to analyze the flow path of the runoff water created by impervious
surfaces. Meeting will be held
throughout the semester with our advisor (Dr.Meierdiercks) in order to make
sure we are completing the requirements as well as answer any questions we may
have along the way.
We will be computing the drainage densities (pipe, road, surface channel) of the Siena-New Hall Subwatershed. In addition, stormwater management pond density will be calculated. The width function (drainage area ratio, length area ratio, and biurfication ratio) will be utilized as well to analyze the distribution of travel distances within the watershed. Horton's ratio will be used if time permits. All of these computations are useful in determining flood response. This is especially relevant to the Siena Subwatershed which has been speculated to be the cause of downstream flooding. This flooding affects many stakeholders in the Menands area.
We will be computing the drainage densities (pipe, road, surface channel) of the Siena-New Hall Subwatershed. In addition, stormwater management pond density will be calculated. The width function (drainage area ratio, length area ratio, and biurfication ratio) will be utilized as well to analyze the distribution of travel distances within the watershed. Horton's ratio will be used if time permits. All of these computations are useful in determining flood response. This is especially relevant to the Siena Subwatershed which has been speculated to be the cause of downstream flooding. This flooding affects many stakeholders in the Menands area.
Objectives:
The objectives of this project is to
use data regarding storm water management and map the flow of the water along
with the effects is has on the hydrological system. The effects of the storm water on the
geomorphic landforms Kromma Kill watershed will be studied in this
project. Drainage densities will be calculated and the results will be displayed on the final poster.
Work Plan:
February:
·
2/24
Create blog site
·
2/24
Create project proposal draft
March:
·
3/3
final draft of project proposal
·
3/5
begin gathering data layer
·
3/25
start spatially analyzing the data
April:
·
4/20
start creating final poster
·
4/25
meet with client to finalize map
May:
·
5/3
have poster completed
Data Sources:
·
ArcMap
ESRI
·
NYS
GIS Clearinghouse
·
USGS
Clearinghouse
Data Layers:
Kromma Kill Base map
Wetlands
Stream channels
Impervious surfaces
Pipes
Roads
Deliverables:
Print a large poster that will be on display in the Environmental Commons at Siena College as well as a final report on our findings.
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