Third fieldwork in six villages, January 1-10 , 2015

Our entire trip ran from January 1st until January 10th. We visited Deluti on January 2nd; Amkhola and Atharagasia were visited on January 3rd; Char Alexander was visited on January 5th; Char Ishwar and Tamaruddin were visited on January 6th. Our purpose there was to conduct focus group discussions with local villagers in the coastal region of Bangladesh in order to better understand the types of environmental challenges villagers face, and to understand what ways villagers adapt to environmental challenges like flooding, erosion, salinization, etc.

To view more photos with descriptions from this trip, you can click below:

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  • Second fieldwork in Charchanga, Paikgacha, Cox’s Bazar, and Chittagong, 3-14 November, 2014

    The second fieldworks were carried out in four different locations ((i) Charchanga, (ii) Paikasha, (iii) Cox Bazar, (iv) Chitagong) in Bangladesh.


    (i) In Charchanga (on the island of Hatiya), the tide gauge installed in March was checked (station worked correctly) and the GPS and tide gauge data were downloaded. Static GPS measurements were carried out to connect water level and GPS measurements.


    The effect of erosion was seen on the east and west coast of Hatiya. Local people worried about erosion and expressed their anxiety. Compared to the situation in March, more than 5 meters-wide strip of coast had been washed away by the river on the east coast of Hatiya.



    (ii) In Paikgacha the GPS station was checked and the data was downloaded. Two-hour static GPS measurements similar to those in Charchanga were carried out to connect the water level and GPS time series. The temporary GNSS receiver (Leica GR25) was installed on the coast of the river (about 500 m from the GNSS base station). The pole of the GNSS antenna was taped onto the wooden post, cf. photos For water level observations, a marker was drawn on the pole every 10 cm. The water level readings were taken during high tide, between 3 pm and 5 pm (local time) until the maximum water level was achieved and the water level started to fall.


    (iii) Cox's Bazar’s tide gauge station was visited and the GPS and radar gauge data were downloaded.

    From November 8-11, 2014 the GPS measurements were carried out on the sea at Cox's Bazar. For that, Calnageo (conceived and built by DT INSU – Division Technique de Institut national des sciences de l'Univers (CNRS)) was used at the crossing point of Saral/Altika passes 0810 and 0251 to link Cox Bazar’s GPS tide gauge and Saral/Altika passes.


    Calnageo is composed of a flexible floating part made of fabric, and a foam pads on which stands the GPS antenna (rugged zephir), mounted on a gimbal suspension. This was towed behind two small zodiacs containing the GPS receiver (Trimble NetR9) and battery in a waterproof suitcase. The zodiacs are then towed behind the boat, with a 60-meter-long rope. Continuous acquisitions were made from Cox's Bazar to the crossover point at 1 and 10Hz. Weather conditions were really good for measurements. There was almost no wind and very calm wave conditions on the sea.


    (iv) Chittagong. GPS tide gauge station was installed in Chittagong. Additionally, GPS buoy measurements were carried out in Chittagong.


    First fieldwork in Barisal and Sunarbans, March, 2014

    During the first expedition the locations of the tide gauges were chosen. The tide gauges equipped with the radar and GPS were mounted in Chachanga and Cox’s Bazar. In Paikasha only the GPS station was installed near the staff gauges at the river.




    First project meeting in Dhaka, 9-13 Dec, 2013