March 31, 2009

How to open .tab file of MapInfo on Google Earth

You may have a lot of MapInfo .tab files, which contain a lot of usefull information. One day you found that Google Earth is also a fancy tool to play arround with satellite images and maps, and you want to display you MapInfo data on that. Here is the steps of how to do (I assume that your PC is already installed with MapInfo and Google Earth, internet connection is required)

1. Download the Google Earth Link Utility here: http://www.mapinfodeveloper.com/downloads/download.php?go=2&file=64&mirror=93
2. Extract the compressed file and run GELink.mbx found in GoogleConnect directory.
3. Open a MapInfo file or a workspace. On the tools tool-bar you should see a green globe icon. When in the map window click on the globe icon to export the map window.
4. Alternatively, to export MapInfo TAB files to Goolge vector format (KML) make a map selection first and then click on the Globe icon. This will export the selected objects to Google Earth.
Let's see the result, not too bad :)

Read more...

Adding more on research design and data collection

As the same as previous trips, this one was very busy with works have to do such as checking logbook recording, sampling, papers, stamps ... More than that this time I have to find location to catch fish and shrimp in the forest, design catching gears, getting people to assist, looking for more places for sampling the catch from shoreline to inland, and many others....

First, look at the picture, drink with people in Nam Can


And then this picture, drink with border guards


Some exercise at border guard base


But please don’t think I just go there for drink :), just some social activities to make works run smooth.

Marking new places in deep forest for catching fish/shrimp species which entering in to the mangrove, there ware 8 places at to sites were selected which these follow species are dominant: Rhizophora, Avcenia marina, Ceriops decandra, and planted Rizophora


A border guard took me in to mangrove


The catching gear looks like this:


The gear has two wings, height 2m, and length 10m, mesh size 1mm. The gear will be put in to the forest, facing with water flow direction when the tide goes down. Fish and shrimp moving along the net and get in trap in the middle of the gear.

The idea of making a quadrad is not possible because after discuss with fishermen, they said that will be not work with quadrad design. When tide goes up above the net, if there are fish and shrimp inside they will try to escape and we will catch nothing.

Good news just got from fishermen, the traps caught quite a lot of small fish and shrimp in the forest. They start classifying the catch and record. Good, will back on this later.

Read more...

March 9, 2009

How to open Garmin GPS file on Google Earth

Hi all (Especially Tuyet Hoa and Phung Ha)
I would like to show you how to open the Garmin GPS file on Google Earth, which may help to display your sampling sites. As we were equiped by the project some Garmin GPS for field survey, but your data will stay there if you dont know how to take them out.

Before doing that, your computer have to be installed with: 1) Map Source (the CD go with the GPS) 2) Google Earth (free download from http://earth.google.com)
1. Turn on GPS and connect to COM port of computer with cable(this port not available with our laptop, so do it on desktop instead)
2. Open MapSource, then receive data from GPS




3. Save the data by GPS exchange format (gpx)
4. Open Google Earth and open the file, select the format GPS (*gpx, *log, *mps)


5. You done! Congratulation! Now your sampling sites already displayed on Google Earth



@ Hoa: you can download your data at http://www.nguyenhuunghia.net/Hoa_CM_BL.zip and open it by Google Earth on your computer or Google Map as below


View Larger Map


Read more...