Ocean data Interpolation using Open Source GIS Interpolation

Ocean data Interpolation using Open Source GIS - Interpolation development with Geo. Server WPS - September 16, Wednesday En. GIS (www. en-gis. com) Ho. Jung-Jeon(jhj 5992@gmail. com) Jung. Hwan-Yun(lenablue 12@gmail. com) Yun. Su-Lee(dldbstnsla@gmail. com)

Contents 1. Introduction Ø En. GIS Ø What is Barnes Surface ? Ø Using Open Source Software 2. Development Ø System Configuration Ø Flow Chart Ø Setting parameters Ø Detailed development Plan 3. Development Results Ø Visualization Ø Web-GIS-based Ocean Information System 4. Future Plan 5. Other Project Ocean data Interpolation using Open Source GIS Ho. Jung-Jeon (jhj 5992@gmail. com)

1. Introduction Ø En. GIS Overview Vision & Mission Company name : En. GIS Solution provider based GIS CEO : Jadek Roh Strengthening of core competencies Main areas of Business : Services and the development of Support the competitiveness of clients geospatial information solutions, System integration and consulting Change of business model The growth in geospatial systems and service company Address : #1312, 168, Gasan digital 1 -ro, Geumcheon-gu, Seoul, Korea 1312 -1호 Contact : 02 -597 -3615 Building of trust to clients Training of professional personnel in IT Provide the best services Establishment date : Feb 2013 Ocean data Interpolation using Open Source GIS 3 Ho. Jung-Jeon (jhj 5992@gmail. com)

1. Introduction Ø What is Barnes Surface q The Barnes Surface rendering transformation is a Vector-to-Raster transformation which computes a interpolated surface across a set of irregular observation points. q It is commonly used as an interpolation technique for weather maps and other meteorological datasets q The surface is generated dynamically from the dataset, so it can be used to visualize changing data q The surface view is created by configuring a layer with an SLD style which invokes the Barnes Surface rendering transformation Ocean data Interpolation using Open Source GIS 4 Ho. Jung-Jeon (jhj 5992@gmail. com)

1. Introduction Ø Using Open Source Software Ocean data Interpolation using Open Source GIS 5 Ho. Jung-Jeon (jhj 5992@gmail. com)

2. Development Ø System Configuration Open Layers Geo. Server Postgre. SQL + Post. GIS Bing Map Development with Open Source Software Ocean GIS Data Using Decision makers Ocean Data. Base Web-GIS-Based Visualization Using Researchers Statistics and Reporting Using Open Source GIS Web-GIS-based Ocean Information System Ocean data Interpolation using Open Source GIS 6 Ho. Jung-Jeon (jhj 5992@gmail. com)

2. Development Ø Flow Chart (2) (3) WPS (Barnes Surface) Output Image xml (1) (4) User Interface Ocean data Interpolation using Open Source GIS Visualization 7 Ho. Jung-Jeon (jhj 5992@gmail. com)

2. Development Ø Setting parameters Name Required Description data Yes Input Feature. Collection containing the features to map value. Attr Yes Name of the value attribute. data. Limit No Limits the number of input points which are processed scale Yes Length Scale for the interpolation. In units of the input data CRS. convergence No Convergence factor for refinement. Between 0 and 1 (values below 0. 4 are safest). (Default = 0. 3) passes No Number of passes to compute. Value can be 1 or greater. (Default = 2) min. Observations No Minimum number of observations required to support a grid cell. (Default = 2) max. Observation. Distance No Maximum distance to an observation for it to support a grid cell. 0 means all observations are used. In units of the input data CRS. (Default = 0) no. Data. Value No The NO_DATA value to use for unsupported grid cells in the output. pixels. Per. Cell No Resolution of the computed grid. Larger values improve performance, but may degrade appearance if too large. (Default = 1) query. Buffer No Distance to expand the query envelope by. Larger values provide a more stable surface. In units of the input data CRS. (Default = 0) output. BBOX Yes Georeferenced bounding box of the output. Width Yes Output image width output. Height Yes Output image height Reference site : http: //suite. opengeo. org/4. 1/cartography/rt/barnes. html Ocean data Interpolation using Open Source GIS 8 Ho. Jung-Jeon (jhj 5992@gmail. com)

2. Development Ø Detailed development - 1 Ocean data Interpolation using Open Source GIS 9 Ho. Jung-Jeon (jhj 5992@gmail. com)

2. Development Ø Detailed development - 2 Ocean data Interpolation using Open Source GIS 10 Ho. Jung-Jeon (jhj 5992@gmail. com)

2. Development Ø Detailed development - 3 Ocean data Interpolation using Open Source GIS 11 Ho. Jung-Jeon (jhj 5992@gmail. com)

2. Development Ø Detailed development - 4 Ocean data Interpolation using Open Source GIS 12 Ho. Jung-Jeon (jhj 5992@gmail. com)

2. Development Ø Detailed development - 5 Ocean data Interpolation using Open Source GIS 13 Ho. Jung-Jeon (jhj 5992@gmail. com)

3. Development Results Ø Visualization Parameter Value value. Attr obs_value data. Limit scale 1 convergence 0. 3 passes 2 min. Observations 1 max. Observation. Distance 2 no. Data. Value -999 pixels. Per. Cell 10 query. Buffer 5 output. BBOX output. Width output. Height Ocean data Interpolation using Open Source GIS 14 Ho. Jung-Jeon (jhj 5992@gmail. com)

3. Development Results Ø Web-GIS-based Ocean Information System Ocean data Interpolation using Open Source GIS 15 Ho. Jung-Jeon (jhj 5992@gmail. com)

3. Development Results Ø Web-GIS-based Ocean Information System 1. GIS Toolbar ① Max, Min, Extent, Pre, Next, Distance, Area, Image Save, Draw, Area Select, Base. Map, Layer List, Index. Map etc. 2. Web-GIS-based Searching Ocean data Interpolation using Open Source GIS 16 Ho. Jung-Jeon (jhj 5992@gmail. com)

3. Development Results Ø Web-GIS-based Ocean Information System Map Report Ocean data Interpolation using Open Source GIS 17 Ho. Jung-Jeon (jhj 5992@gmail. com)

3. Development Results Ø Web-GIS-based Ocean Information System Select Area Point, Polyline, Rectangle, Polygon Draw Ocean data Interpolation using Open Source GIS 18 Ho. Jung-Jeon (jhj 5992@gmail. com)

3. Development Results Ø Web-GIS-based Ocean Information System Layer On/Off, Transparency Select Base Map Ocean data Interpolation using Open Source GIS 19 Ho. Jung-Jeon (jhj 5992@gmail. com)

3. Development Results Ø Web-GIS-based Ocean Information System Landset Data Show Ocean data Interpolation using Open Source GIS 20 Ho. Jung-Jeon (jhj 5992@gmail. com)

4. Future Plan Ø Future Plan q In general, there was a difficulty in understanding because initially Interpolation methods are not used. q In the beginning it was difficult. But trying to solve problems through research. q Current is applied to only part of the ocean data. It will be applied using other data in the future. Ocean data Interpolation using Open Source GIS 21 Ho. Jung-Jeon (jhj 5992@gmail. com)

5. Other Project (using Open Source GIS) Ø KOBIS(Korea Biogeographic Information System) Ocean data Interpolation using Open Source GIS 22 Ho. Jung-Jeon (jhj 5992@gmail. com)

5. Other Project (using Open Source GIS) Ø WESTPAC Ocean data Interpolation using Open Source GIS 23 Ho. Jung-Jeon (jhj 5992@gmail. com)

5. Other Project (using Open Source GIS) Ø KOCIMS(Korea Ocean Carbon Information Management System) Ocean data Interpolation using Open Source GIS 24 Ho. Jung-Jeon (jhj 5992@gmail. com)