Sep. 1-2, 2019 UTokyo Hydrosphere Group Trip
Annual field trip organized by Hydrosphere Group, Department of Civil Engineering, The University of Tokyo, was held from September 1 to 2, 2019. We visited the Sakawagawa River watershed and stayed at Yamanaka Lodge of UTokyo. In the evening seminar after the dinner, Wang and Parastoo presented their research from our lab.
2019.8.26-27 Field visit in Ishigaki Island
A field visit in Ishigaki Island, Okinawa Prefecture, was performed from August 26 to 27 organized by a committee on coral reef restoration by Fisheries Agency. We visited Research Center for Subtropical Fisheries, Seikai National Fisheries Research Institute, Fisheries Research and Education Agency.
Hybrid methods combining atmospheric reanalysis data and a parametric typhoon model to hindcast storm surges in Tokyo Bay
Reanalysis data and a parametric typhoon model formula are often used to prepare wind and pressure fields for storm surge hindcasting. However, their optimum selection and usage have not been well established. To enhance the accuracy of wind and pressure fields, two hybrid methods were proposed by applying a parametric typhoon model of Mitsuta–Fujii’s formula, which is determined from the typhoon center to a certain radius of Rb, and then switching to the reanalysis data of ERA-Interim in the outer region through the interpolated transition bandwidth of Wb. In hybrid model I, Rb and Wb were fixed because the time-varying radius of the maximum wind speed was determined by the […]
2019.7.8 iSymWater2019 in Beijing, China
Dr. Sasaki delivered a keynote talk in the international symposium, iSymWater2019, held at Xijiao Hotel in Beijing, entitled "Sustainable Marine Environment and Coastal Disaster Mitigation in Tokyo Bay." One of the organizers of this symposium is School of Environment, Beijing Normal University, with which Graduate School of Frontier Sciences, the University of Tokyo has concluded Memorandum of Understanding (MOU) since May, 2019. This symposium was also reported by China Daily.
2019.8.6-11 Business trip to Can Tho University, Vietnam, in JICA Project
Dr. Sasaki was dispatched to Can Tho University, Vietnam from August 6 to 11, 2019, by JICA. Itinerary was JL79 HND/SGN 1:25/5:15, JL70 SGN/HND 23:25/6:55+1. The university is located in a big city of Can Tho in Mekong Delta and traditionally famous in agriculture, fishery, and aquaculture. The university is expanding the field of environmental studies, including delta management.
Bar plots on Google Earth Pro
Creating Bar plots kml files for Google Earth Pro using Python googleearthplot referring to this site. Install Suppose pandas is installed. Install simplekml and googleearthplot. pip install simplekml pip install googleearthplot googleearthplot is a Python2 code and some modification is required in Python3 because of an error associated with print statement. First find the location of installed googleearthplot as follows: pip show googleearthplot Edit googleearthplot.py to modify the lines of print statement by converting print **** to print(****) using parentheses. Usage Open a Jupyter Notebook and import packages. Referring to the original site, some examples are shown. Double cricking on created kml file, a plot should be presented on Google […]
Tips for supercomputer ITO-A at Kyushu University
This page is tips for the usage of supercomputer ITO-A at Kyushu University. The service ends in February 2023 About disk quota Check status of disk usage You may encounter an error message like disk quota exceeded when the disk used exceeds its quota. You can check the disk status: lfs quota -g group_name /home Displayed something like as follows: Disk quotas for group ******* (gid *****): Filesystem kbytes quota limit grace files quota limit grace /home 10738166000* 10737418240 10737418240 - 2307227 8000000 10000000 - Where kbytes(=10738166000*): used (kbytes), quota(=10737418240): disk quota (software limit), limit (=10737418240): disk quota (hardware limit)，grace (-): Approved duration with exceeded disk quota status，files (=2307227): the […]
Build Delft3D on Ubuntu 16.04 of WSL using GNU compiler
This post is a memorandum on building Delft3D on Ubuntu 16.04 of WSL on Windows 10 Pro. I tried to build Delft3D on Ubuntu 18.04 with Intel compiler, but it did not work, and thus following the information here, I built Delft3D on Ubuntu 16.04 with the GNU compiler. (Posted on June 12, 2019) Preparation First, set the Windows shared folder. Add the following to the end of ~/.bashrc so that you can access the Windows C drive as ~/winc. if [ -d winc ]; then echo "Windows shared folders ready" else ln -s /mnt/c winc fi In order to reflect the changed .bashrc , execute the following in your […]
2019.5.25 Lab's welcome party
We hold our lab's welcome party for a new student enrolling in April, 2019, on May 22 at a new Chinese restaurant nearby our Kashiwa campus.
Severe salinity contamination in drinking water and associated human health hazards increase migration risk in the southwestern coastal part of Bangladesh
Bangladesh is a deltaic country and it is highly vulnerable to climate change and sea level rise. The southwestern part of this country is repeatedly devastated by cyclonic storm surges which create long-term waterlogging, flooding’s, and salinity problems. After the cyclone Sidr in 2007 and Aila in 2009, salinity problems in groundwater have significantly increased where groundwater is a principal source of drinking water in the coastal community. After the continuing consequences of salinity contamination and consumption of those types of water, local peoples are suffering from several types of health diseases. Average household health expenditure is significantly increased and it exerts more pressure on their vulnerable household economy. Thus, […]