State of the Planet

News from the Columbia Climate School

Geohazards in Bangladesh6

  • Installing the First Two GPS Sites

    Installing the First Two GPS Sites

    From our base in Srimongal, now came the challenging work of finding appropriate locations to install the GPS. It requires a combination of the right tectonic setting and reinforced concrete buildings.

  • Fellowship of the Seismometers

    Fellowship of the Seismometers

    I am back in Bangladesh to start deployment of seismometers and GPS for a large new project that crosses 3 countries: Bangladesh, India and Myanmar.

  • Sampling on the Ganges and Brahmaputra Rivers

    Sampling on the Ganges and Brahmaputra Rivers

    The final phase of our revolves around visiting chars, sandy river islands, on the Ganges and Brahmaputra River. Chris and Dan are making measurements of soil salinity and moisture and spectra of the soil reflectance, while Liz and I collected samples for OSL dating and understanding the OSL properties of the river sediments here. This…

  • Side Trip to Hiron Point, Sundarbans

    Side Trip to Hiron Point, Sundarbans

    After helping Chris an Dan with soil salinity and reflectance measurement, Humayun, Liz and I moved onto the smaller M.B. Mewl to sail through the Sundarban Mangrove Forest to service our GPS station at Hiron Point.

  • Equipment Repairs in SW Bangladesh

    Equipment Repairs in SW Bangladesh

    Humayun, Liz and I headed to Khulna in SW Bangladesh a day after Chris and Dan. Along the way, we stopped at our sediment compaction meter for surveying and removing the GPS, and getting feasted by the family that hosts the system.

  • Back to Bangladesh to Date Earthquakes and More

    Back to Bangladesh to Date Earthquakes and More

    I’m back in Bangladesh with a small team after a year and a half away. One different is a police escort as a result of the attacks last year. We start by successfully sampling river sediments to correct the date of an earthquake that caused a river to shift over 3,500 years ago. We also…

  • The Coming Great Quakes in India and Bangladesh?

    The Coming Great Quakes in India and Bangladesh?

    A new film takes viewers from the eastern highlands of India to the booming lowland metropolis of Dhaka, the capital of Bangladesh–and explores an ever-more detailed picture of catastrophic earthquake threat that scientists are discovering under the region.

  • Construction in the Swamp

    Construction in the Swamp

    Despite the miserable weather and ongoing rain, we constructed a wooden structure to hold the GPS receivers, solar panels and other electronic equipment between the three wells. We worked out how and where to mount the antennas and had parts made to accomplish it. Although I had to leave before it was completed, the team…

  • Visit to a Different Delta: the Mississippi

    Visit to a Different Delta: the Mississippi

    This summer I am in the Mississippi Delta in southern Louisiana helping to install an updated version of the compaction meters that we have in Bangladesh. The environment is quite different and we have arrived in the midst of an historic storm. Luckily for us the brunt of the storm is NW of us. So…

  • Installing the First Two GPS Sites

    Installing the First Two GPS Sites

    From our base in Srimongal, now came the challenging work of finding appropriate locations to install the GPS. It requires a combination of the right tectonic setting and reinforced concrete buildings.

  • Fellowship of the Seismometers

    Fellowship of the Seismometers

    I am back in Bangladesh to start deployment of seismometers and GPS for a large new project that crosses 3 countries: Bangladesh, India and Myanmar.

  • Sampling on the Ganges and Brahmaputra Rivers

    Sampling on the Ganges and Brahmaputra Rivers

    The final phase of our revolves around visiting chars, sandy river islands, on the Ganges and Brahmaputra River. Chris and Dan are making measurements of soil salinity and moisture and spectra of the soil reflectance, while Liz and I collected samples for OSL dating and understanding the OSL properties of the river sediments here. This…

  • Side Trip to Hiron Point, Sundarbans

    Side Trip to Hiron Point, Sundarbans

    After helping Chris an Dan with soil salinity and reflectance measurement, Humayun, Liz and I moved onto the smaller M.B. Mewl to sail through the Sundarban Mangrove Forest to service our GPS station at Hiron Point.

  • Equipment Repairs in SW Bangladesh

    Equipment Repairs in SW Bangladesh

    Humayun, Liz and I headed to Khulna in SW Bangladesh a day after Chris and Dan. Along the way, we stopped at our sediment compaction meter for surveying and removing the GPS, and getting feasted by the family that hosts the system.

  • Back to Bangladesh to Date Earthquakes and More

    Back to Bangladesh to Date Earthquakes and More

    I’m back in Bangladesh with a small team after a year and a half away. One different is a police escort as a result of the attacks last year. We start by successfully sampling river sediments to correct the date of an earthquake that caused a river to shift over 3,500 years ago. We also…

  • The Coming Great Quakes in India and Bangladesh?

    The Coming Great Quakes in India and Bangladesh?

    A new film takes viewers from the eastern highlands of India to the booming lowland metropolis of Dhaka, the capital of Bangladesh–and explores an ever-more detailed picture of catastrophic earthquake threat that scientists are discovering under the region.

  • Construction in the Swamp

    Construction in the Swamp

    Despite the miserable weather and ongoing rain, we constructed a wooden structure to hold the GPS receivers, solar panels and other electronic equipment between the three wells. We worked out how and where to mount the antennas and had parts made to accomplish it. Although I had to leave before it was completed, the team…

  • Visit to a Different Delta: the Mississippi

    Visit to a Different Delta: the Mississippi

    This summer I am in the Mississippi Delta in southern Louisiana helping to install an updated version of the compaction meters that we have in Bangladesh. The environment is quite different and we have arrived in the midst of an historic storm. Luckily for us the brunt of the storm is NW of us. So…