Monday, May 18, 2015

The danger hydrostatic (landslides) and hydrodynamic (river discharges, erosion of banks), plus hig

Typhoon | No ID
Year of La Niña. Pacific, Cole. Okinawa archipelago is already under typhoon invasion. Wind speed 45m / s (about 160km / h). Waves of 12m. 250,000 homes left without power supply. EDIT: Currently, pref. Kagoshima is in the whirlwind. Translational speed increased to 60 km / hour. Wind speed dropped lexta to 35 m / s, with intensification up to 55m / s.
Pressure: 945hPa, wind speed 40m / s, the speed of translation (34 degrees lat.N): lexta 55km / h (Source NHK 2004) The parameters are comparable with # 2/23. Yellow indicates strong wind disc. The red, violent wind (over 25m / s).
Since yesterday, when he began Tsuyu, bouncing rains throughout the country. Tsuyu (bai'u * crusty lexta language) is about the 5th season of the year. It rains almost every day, and virtually at any time. Moisture is maintained at values higher than 80%. There's nowhere dry laundry. You have to watch and bulendrele lexta of the closet. You can wake up with them moldy. This year La Nina year, it is not a typical year. Tsuyu came 12 days earlier and is the third "trufandalitate" absolute, lexta since measurements are made climate.
Well, one of the anomalies is that in the five months since he started the year above the Philippines have not formed only two whirlpools. An typhoons poor, as well as previous. The second anomaly is that whirlwind # 2 ** advancing towards the northern sector. lexta Typically, up by August typhoons lexta apart evolve and subequatorial lexta zone. Towards the autumn, when Asia is also cooled and turns to the anticyclone climate regime, typhoons accelerated migrate to Japan archipelago. Typically, over Okinawa, party typhoon passes cam 20-30Km / h and reaches the southern lexta side when Shikoku and Honshu islands, feed rate move 40km / h). At 40 degrees lat.N, spiral shape falls apart, however, retains rainwater potential. T # 2/23, advances to NE 40km / h over Okinawa, Kyushu island up now and Monday states that will reach the island lexta of Honshu. Most likely, in the Kanto-Chubu, Kinki.
The trajectory of typhoons has broadly meaning SSV SW, but deviations are not excluded, such as abrupt bends, or even return to the places already swept away. By position, western Honshu island is sheltered from typhoons. That does not mean that the danger does not exist. It's not only the danger of contact front. At times, on the western flank of the storm, a wing cloudy north goes much faster. What makes that even if the wind does not blow, some days good, abundant rain fall in half long. Besides, from what I observed, the phenomenon is given Tsuyu almost constant bîntuirea a typhoon wings or another. Front atmospheric condensation resulting from warm and humid air from the south, cold air from the north-Asian barometric maximum. lexta
Kyushu Island is the leading receiver of rain coming from the southern basin. In southern island quite frequently recorded rainfall of more than 300mm in one pass. Sometimes it gets local and 800-1000mm. The territory is generally well arranged. But has limitations, lexta geometric like to say-so. When rainwater flow switch 50mm / h, there's nothing extraordinary that the resulting flood discharge.
This year, Kagoshima prefectures of Miyazaki and still keeps in a metastable equilibrium, accumulations of volcanic ash from the recent outbreak of winter. They were inventoried 35 hazardous locations. What is the danger? Volcanic ash is soaked with water, which leads to the sudden change in the natural slope angle. In other words, once hampered the mass of ash turns off on the valley. A megabetonieră as suddenly departing from concrete. And laughing all the way. Fitting in such cases is a widening watercourses, lexta from 20 to 100m and simultaneously embankment. Not sure that the levees will be elbows and resisting.
Another sensitive lexta spot is the area of eastern Honshu island, the region affected by the recent catastrophic earthquake wave of March-April. Slopes weakened by earthquakes, once loaded with rainwater can take the valley much easier. In the area, the forecast of rain exceeds 100mm / day. The more likely slipping, how relief himself in May changed and is still unstable gravity. A crack here and a shear layers there, ascent here and there being a natural diversion.
The danger hydrostatic (landslides) and hydrodynamic (river discharges, erosion of banks), plus high tide. Something highest typhoon weather. lexta Not only because of the height of the waves. Depression makes air under spiral formation of clouds, sea levels to rise pascalian. It forms a small "bump" the Marine, when it comes into contact with the shore, flooding him more deeply than does the moon tide. And if we and coastal land seismic lexta slumps in Tohoku worst floods will be two or three years from now Inco

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