dataflow - virginia deq · dataflow: representation and analysis derek loftis and harry wang...
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![Page 1: DataFlow - Virginia DEQ · DataFlow: Representation and Analysis Derek Loftis and Harry Wang Virginia Institute of Marine Science College of William and Mary March 28, 2014 . Outline](https://reader033.vdocuments.net/reader033/viewer/2022060309/5f0a66ce7e708231d42b74b8/html5/thumbnails/1.jpg)
DataFlow: Representation and Analysis
Derek Loftis and Harry Wang
Virginia Institute of Marine Science
College of William and Mary
March 28, 2014
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Outline
I. Raw Data Representation
II. Mapping Data for Modeling Application
III. Analysis using toolbox linking between
GIS and MATLAB
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DataFlow MS Access Data Base
1. Raw Data Representation
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Dataflow Raw Data Access
11/03/2011 Survey
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Graphic representation
11/03/2011 Survey
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Identify individual measurement
11/03/2011 Survey
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Assemble data along the cruise
11/03/2011 Survey
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Zoom in on details
11/03/2011 Survey
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Data integration1
11/03/2011 Survey
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Data integration2
11/03/2011 Survey
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Data integration3
11/03/2011 Survey
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Data integration4
11/03/2011 Survey
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Data integration exported on a spread sheet
11/03/2011 Survey
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Example of the products -
GIS Shape files (.shp)
◦ ArcGIS 10.1
◦ GRASS 6.4 (Open Source): http://grass.osgeo.org/download/software/ms-windows/
Google Maps / Earth (.kml)
◦ Free software package or available as web browser extension: http://www.google.com/earth/download/ge/
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II. Mapping Data for Modeling Applications
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03/28/2006 Survey
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Chlorophyll (µg/L)
03/28/2006 Survey
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Chlorophyll (µg/L)
03/28/2006 Survey
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Chlorophyll (µg/L)
03/28/2006 Survey
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◦ Geometric Mean by Grid Cell
◦ Inverse Distance Weighted (IDW)
◦ Natural Neighbor
◦ Kriging with barrier
◦ Spline with barriers
Interpolation without crossing barriers such as:
Grid Edge
Shoreline
A list of Spatial Interpolation Methods
Which method is the most suitable for Data Flow
survey?
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III. Data Analysis using toolbox linking
between GIS and MATLAB
Mapping Toolbox imports a wide range of GIS
and geospatial file formats, enabling one to read
both vector and raster data into the MATLAB
environment.
Mapping Toolbox also exports data to a number
of file formats, enabling one to share data with
applications such as Google Earth™ and
ArcGIS®
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STATION DIST_MOUTH_
JAMES DIST_MOUTH_
ELIZABETH DIST_MOUTH
_LAFAYETTE JMS002.55 3.67 ELI1 4.46 0.29 LE5.4 5.51 LE5.6 7.13 2.96 ELI2 9.11 4.94 LFA01 9.23 5.07 1.01 LAF1 9.64 5.47 1.42 ELD01 10.41 6.25 ELI3 11.01 6.84 LFB01 11.93 7.76 3.71 LE5.3 12.58 ELE01 12.61 8.44 WBE1 12.61 8.45 EBE1 13.35 9.18 EBE1-E 13.54 9.37 SBE1 13.73 9.56 SBA1 14.15 9.98 EBE2 14.67 10.51 WBB05 15.02 10.85 SBE2 15.12 10.95 EBB01 15.88 11.71 SBC1 16.09 11.92 SBE3 17.04 12.88 JMS017.96 17.85 SBD1 17.91 13.74 JMS018.23 18.20 SBE4 18.49 14.33 SBE5 19.15 14.98 LE5.2 20.49 LE5.2S 20.89 LE5.2N 21.18 SBD4 21.64 17.48 JMS032.59 32.59 LE5.1 32.59 RET5.2S 42.56 JMS042.92 42.92 RET5.2 42.92 RET5.2N 43.78 JMS043.78 44.21 JMS048.03 48.03 JMS050.74 50.74 TF5.6A 50.99 RET5.1A 54.94 JMS055.94 55.94 TF5.6 55.94 RET5.1 57.04 JMS062.82 62.38 JMS069.08 69.08 TF5.5A 69.08 TF5.5AS 69.13 TF5.5AN 69.26 JMS073.37 73.37 JMS075.04 75.04 TF5.5 75.12 TF5.4 78.87 JMS082.49 82.30 TF5.0A 93.61 JMS094.45 94.36 JMS099.00 98.79 TF5.3 99.12 JMS104.16 103.90 TF5.2A 103.90 JMS109.62 109.41 TF5.2 109.98 TF5.0J 157.48
Example: Identification of River Miles
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Thank You!
And more tool to come !!!!!