Computer Systems Analytics, Inc.

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HomeAbout UsCoastal Processes - ICoastal Processes - IIBB Parkwood St. 8/2010 IBB Parkwood St. 8/2010 II

Physical Systems Modeling - Software - Risk Assessment - Data Collection Instrumentation

The following graphics illustrate several topics which are representative of the projects pursued by Computer Systems Analytics, Inc.

Terrain Relief for BB, DE:
Terrain elevation map for the southern Bethany Beach area of Sussex County, Delaware. This relief is based on USGS data files with 30 meter resolution.
The region along the coast between 38.515o - 38.528o represents the housing in Bethany "Proper" located east of US 1.
Typically, the terrain relief is about 7 feet for much of the area, which leaves it vulnerable to storm damage.

Sand Loss (Volume) BB 2009 Northeasters:
The sand loss during the November 2009 northeaster storms, at the Bethany Beach coastline. The figure plots the elevation change between 9/2009 and 12/2009 for the coastline: across the beach from 800' to -300' (with 0 feet across marking the location of the dune peak); along the coast from Sea Colony to 5th Street; and corresponding to a total sand loss of 158 K tons of sand.
The average density of the lost sand is 0.0537 tons/cubic ft -- which is about the density of the dune, marking the dominant contribution to the loss.

Prototype Data Acquisition System (Methane Absorption):
This photograph illustrates the experimental set-up for data acquisition of dual-channel absorption data from a methane absorption cell. The overall measurement is made using the two Keithley 2100's and this is input to the computer database (PC to the left).

Methane n3-Band Intensities: The normalized intensities for sea level pressures (1 atmosphere) -- absorption profile. The indicated P, Q, and R branches correspond to spectral data obtained from the HITRAN 2004 database.
The goal of this work is to adequately characterize the integrated intensities for signal output from suitable IR detectors: methane absorption cells.