ArcGIS for Ocean : How to Make Base Map in ArcMap (Part 2)

Before continue,  please read this post : ArcGIS for Ocean : How to Make Base Map in ArcMap (Part 1)

Ok lets continue to the next step.

After put the data in ArcCatalog 10.1, open ArcMap 10.1. In the left side, you will see Table of Contents box, right click Layers and choose Add Data. Add the data downloaded in folder made previously. Add coastlines in GSHHS_shp folder and choose full resolution in h folder and then add GSHHS_h_L1 file. Because I want to add province boundaries in this map, so I add administrative boundaries IDN_adm1. Add EZZ data from folder, choose World_EEZ_v7_2012_HR.shp because I only need EZZ as maritime boundaries.

World EZZ layer added previously provides all EZZ country in the world, to show only Indonesia EZZ, right click World EZZ layer and click Properties, in Symbology tab menu click Categories > Unique Values in right box, in Value Field column search Country and click Add All Values, remove all country except Indonesia, double click and choose Hollow to change Indonesia colour be transparency, then uncheck <all other values>, and click OK.

You'll find like this

Add Total sediments thickness of the world ocean data, this data has E00 file type, this type do not show in ArcMap, so we use Input Interchange File. For this case use ArcToolbox, find and expand Conversion Tools then expand To Coverage Tools and open Import From E00.

Fill Input Interchange File column with sediment data. Output folder and output name column fill automatically, but you can change if you want. Then click OK

Wait until converting process finish.

After finish, add this output sediment data in to layer in Table of Contents box.

Ok finish, you can save this file or if this project want to print out, you can use Layout view and give another annotation, such as title etc.

Read More

ArcGIS for Ocean : How to Make Base Map in ArcMap (Part 1)

In this post, I will describe how to make base map in ArcMap for oceanography purpose. This base map is a map consist of coastlines; administrative boundaries, rivers and road of the country; maritime boundaries; and total sediments thickness of the world ocean; You can add any data such as bathymetry, SST etc, but in this post I only use data mentioned previously. You need to install and running ArcMap and ArcCatalog, in this excercise I use ArcMap 10.1 (ArcView) and ArcCatalog 10.1. Before create base map we need some resources data which will be described below. 

Coastlines : GSHHG 

The used coastlines is GSHHG data. GSHHG (Global Self-consistent, Hierarchical, High-resolution Geography Database, fromerly is GSHHS or Global Self-consistent, Hierarchical, High-resolution Shoreline Database) is a high-resolution shoreline data set from three data bases (the CIA world database WDBII, the World Vector Shoreline database and Atlas of the Cryosphere database) in the public domain. The data have undergone extensive processing and are free of internal inconsistencies such as erratic points and crossing segments. The WVS is basis for shorelines except for Antarctica while the WDBII is the basis for lakes, although there are instances where differences in coastline representations necessitated adding WDBII islands to GSHHG. The WDBII source also provides all political borders and rivers. GSHHG has two different file format, ESRI Shapefile and Binary file. 

GSHHG is developed and maintained by SOEST and NOAA. GSHHG have five different geography data, they are, 

• full resolution: Original (full) data resolution. 
• high resolution: About 80 % reduction in size and quality. 
• intermediate resolution: Another ~80 % reduction. 
• low resolution: Another ~80 % reduction. 
• crude resolution: Another ~80 % reduction 

For futher information and download data, you can open here from SOEST website, for ArcGIS use GSHHG in ESRI shapefile format. The highest resolution coastlines is GSHHS _f_L1.shp and I use this in this excercise. 

Administrative boundaries, rivers and road of the country : DIVA-GIS 

DIVA-GIS provides high-resolution spatial data of administrative boundaries, Inland water, roads, railroads, climate, population, etc. This spatial data provides in country level and has shapefile format. Open DIVA sites here to download data and further infromation. Select Country and Subject then click OK to download data, in here I use administrative data of Indonesia. The administrative data has three shapefiles such as adm0 (country boundaries), adm1 (province boundaries) and adm2 (regency boundaries). Select and download other subject of roads and rivers. 

Maritime Boundaries : Marine Region 

Marine Regions is a standard list of marine georeferenced place names and areas. Marine Regions is an integration of the VLIMAR Gazetteer and the VLIZ Maritime Boundaries Geodatabase. It integrates and serves geographic information from the VLIMAR Gazetteer and the MARBOUND database and proposes a standard of marine georeferenced locations, boundaries and regions. Click download menu, you’ll find data such as Exclusive Economic Zones Boundaries (EEZ), IHO Sea Areas,Marineregions: intersect of EEZ's and IHO areas, Marine and land zones: the union of world country boundaries and EEZ's, Marine Heritage Sites, FAO Fishing Areas, Large Marine Ecosystems of the World, etc. Choose and download EEZ data here. 

Total sediments thickness of the world ocean : NGDC

A digital total-sediment-thickness database for the world's oceans and marginal seas is high-resolution data gridded with a grid spacing of 5 arc-minutes by 5 arc-minutes, this data compiled by the NOAA National Geophysical Data Center (NGDC). Download data here, select data for ArcGIS file. 

After download all data needed, extract in one folder. Open ArcCatalog 10.1. On the left side find Folder Connections, right click and select Folder connections, navigate to extracted folder data. 

Next : ArcGIS for Ocean : How to Make Base Map in ArcMap (Part 2)

Read More

Create KML files for Google Earth in ArcGis (ArcMap) from NetCDF files

ArcGIS is a software package consist of geographical information system product produced by ESRI. ArcGIS includes windows-based software such as ArcReader and ArcDesktop. ArcDesktop has three license level : ArcView, ArcEditor, and ArcInfo.

In this post I use ArcMap (Arcview level) as one of ArcGIS package. As an example I will show Sea Surface Temperature (SST) of the world in Google Earth converted into KML files using ArcMap.

Before create KML files, we need some resource such as :

• Installed and running ArcMap (of course).
• Daily mean SST file obtained from ESRL NOAA. This is a NetCDF  files type.
• Installed and running Google Earth.

Ok, lets start now ....

1. First Step : ArcMap

• After download SST file from NOAA. Open ArcMap.
• Open ArcToolbox, navigate to Multidimension Tools and click Make NetCDF Raster Layer.
• After that you will see window like this

• In Input NetCDF File column, navigate and add your SST file. After add SST file, Variable, X Dimension, and Y Dimension column will be loaded automaticaly, make sure that Variable, X Dimension, and Y dimension is true, in here Variables is sst, X Dimension is longitude (lon), Y Dimension is latitude (lat). Don't forget to fill Output Raster Layer column, this column will be the layer name in ArcMap windows later, in here I write sst_Layer. Click OK. This is a conversion process from NetCDF to ArcMap layer. 
• Wait until converting process finish. 
• After that in ArcMap you will get layer like this

• Open ArcToolbox, navigate and click Conversion Tools, and then expand To KML and choose Layer To KML.

• In Layer To KML window, add SST layer with click arrow in Layer column. The Output File folder will be directed automaticaly, but if you want to change output file folder location, you can click folder icon beside column. This is a process to convert ArcMap layer to KML files (.kmz).

• Click OK, and wait until converting process finish.

Step one finish, Continue to next step....

2. Last Step : Google Earth

• Open Google Earth.
• Click File menu and click Open. Navigate to your .kmz file and click Open.
• And Taraaa .... process is finished.

Ok only that, it's so simple to make KML files, this step can also used for another marine data and any data what you want. But make sure that latitude range is -90 to 90 and the longitude range is 0 to 360.

Read More