Others can avoid this, but they have to be drilled to the typhoon center.
Original title: Others can avoid this small boat but also to the typhoon center to see the strong typhoon, people are prone to avoiding. But to get observed data, you must approach typhoon. Recently, my country’s developed marine meteorological observer -3 (MWO-3) semi-submersible solar meteorological detection drone is on the wind, successfully passed through the Typhoon "Senlak" center this year, gaining high-time in typhoon development Ocean meteorological and marine elements of the resolution. According to reports, this is also the first time to use the solar withoutone boat to actively detect the typhoon center. Maybe someone will ask: We launched so many meteorological satellites, there are still many weather radars in the ground, why do you have to use a no boat to detect a typhoon? What superior performance is this wind-saving or boat? Throughout the typhoon center in the wind rain, what data has been collected without boat? To this end, the reporter interviewed the relevant experts and explained these issues.
"See" The typhoon inside the typhoon can significantly improve observation precision. It is understood that the weather radar on land or islands can detect the typhoon precipitation and wind farm within 200 kilometers, which can play a good help for monitoring the near-way typhoon activities.
However, the radar detects the typhoon far from the sea, and it is impossible to measure the elements of the full reflection of typhoon characteristics, such as central air pressure, maximum wind speed and typhoon water temperature.
In order to improve typhoon forecasting level, it is necessary to accurately analyze the typhoon position, intensity, etc., and meteorological observes need to send "sentry" to further monitoring.
Compared with the radar, the satellite "high" "high" "wide", the corresponding monitoring range is also larger.
At present, the satellite cloud map can help meteorological observes see all typhoons and tropical storms, which will be positioned and powerful. At the same time, it is also because the observation position of the satellite is too high. The clarity of observations is sometimes difficult to guarantee, especially when the upper part of the typhoon is covered with a thick roll cloud, the satellite cloud map is positioned to typhoon, and the difficulty is greatly increased. If it is not possible to accurately know the center position of the typhoon, the weather observation numerical model cannot accurately describe the typhoon scroll structure. The observer is difficult to accurately track and forecast the typhoon path and strength change, will cause the forecast error to be large. "Satellite observation acts as a remote sensing technology. Chen Hongbin, a research institute, told the Science and Technology Daily reporter.
Typhoon central air pressure directly determines the typhoon strength and typhoon’s great wind speed. In general, the central air pressure of the typhoon is low, the greater the gas pressure gradient in the typhoon, the more violent winds; if you can get a typhoon internal wind, temperature field and humidity Various probing data can greatly improve the accuracy of numerical forecasts. Therefore, it is important to directly detect the seas and air pressure and wind fields of the typhoon center. At present, there are some typhoon monitoring and forecasting agencies that use some people and unmanned aircraft, flying to some parts of the typhoon, the weather, the measured temperature, air pressure, humidity, wind speed and wind profile information Wait, significantly improve the accuracy of typhoon path forecasting. Experts tell reporters that the accuracy of the research and numerical prediction accuracy of typhoon evolution, requires three-dimensional comprehensive detection of satellite remote sensing, shore radar, aircraft and sea surface monitoring devices. In the past, the typhoon was monitored in the sea, which used buoy. Today, there is now a greater help for typhoon monitoring. In this offshore observation trial, MWO-3 provides China Meteorological Bureau with a real-time observation data for time resolution up to 1 minute, and monitors the detailed changes in the various elements of typhoon transit.
Voyage observation process, a strain capable of maneuvering the unmanned boat, real-time observation data obtaining optimal position, as compared to the conventional observation ocean buoys, has unique advantages. Unique design created a storm in the tumbler According to experts, we want to withstand the test of storms typhoon, with the waves of the unmanned boat better, or stronger self-righting capacity, so they are not in the storm "capsize."
MWO series of semi-submersible solar meteorological unmanned boat double cylinder to ensure the stability thereof, i.e. the coupling pontoon two isoforms in the deck, may provide greater buoyancy in the water.
In addition, this design also gives a semi-submersible unmanned boat function, i.e. when the wind and waves, the unmanned boat automatic or remote control of the buoy into the water, so that the entire portion of the bracket and the hull submerged in the water.
As the center of gravity down the stability of the whole system has been significantly enhanced, it is difficult to occur tipping phenomenon.
Further, although the hull into the water, but it may be a meteorological sensor floats above the water surface, can still work, Beidou satellite antenna on the sensor can also receive commands and data issued. This function is designed MWO series semi-submersible solar meteorological unmanned boat a highlight.
In early August, this year’s typhoon No. 3 "Senlake" incoming, MWO-3 shows in the storm its good mobility, strong anti-wave, automatic detection and real-time data transmission characteristics, superior detection capability has been verify. In addition, MWO series semi-submersible solar meteorological Another great feature is the use of unmanned boat solar energy as an important source of power.
The use of solar energy, on the one hand clean pollution-free, on the other hand also to ensure that the unmanned boat can sail a long time.
"Our unmanned boat design requirements is to ensure that the observed sea operation in the first half, especially when even the rainy weather, the weather is still to ensure detection and location data continuously back to the ground central station.
"Hongbin said unmanned boat before the official launch of the typhoon detection, the researchers will be thoroughly tested, as far as possible to ensure the reliability of the performance of unmanned boats, especially water and unmanned boat inside and outside the line of avoidance impaired ability.
Before the probe times typhoons, two consecutive tests unmanned boat in Qionghai City, Hainan Province, Tam Mun Center fishing port operation for nearly a month, on July 22 formally to the sea, to participate in the China Meteorological Administration meteorological center organized a " Swallow planned "test, a continuous navigational observations in the ocean about 120 kilometers east of Lingshui Li Autonomous County, Hainan Province.
August 1, according to the researchers analyzed satellite images of the sailing route planning to do, take the initiative to close to the typhoon center and observed Typhoon No. 3 "Senlake" rapid evolution from a tropical depression into a typhoon, the typhoon is forecast to provide timely expert field observations of the typhoon center.
More comprehensive observation means observing network offshore formation is reported, MWO-3 equipped with a weather station, the table solar radiation, temperature and salinity of sea surface wave sensor and the instrument, such as a scoping device, data may be acquired with a sea surface pressure, temperature, humidity, wind speed and direction, solar radiation, sea surface temperature and salinity and wave parameters, and to take advantage of my country’s Beidou satellite communications function, return a set of data per minute.
MWO-3 observation data obtained in this experiment, the first time is sent to the Central Meteorological Observatory forecast the typhoon and marine meteorology center, a typhoon forecasting, early warning played an important role. "At that time no other nearby observation data, real-time data MWO-3 is very precious, from the low pressure center close, very beneficial to us to determine the position of the low pressure center." Central Meteorological Observatory typhoon and money transfer Hai, director of the marine weather forecast center commented. In addition, the study will also include sea trials through the data obtained typhoon, were shared with the relevant research institutions to carry out the depth of quality control, such as observed under the conditions of strong storms and rain and humidity data, will after verification by reliability, satellite remote sensing, and some numerical simulation validation study further product is applied. After the reporter learned that, MWO series semi-submersible solar meteorological unmanned boat can also be used to monitor offshore wind and fog and other weather, load sensors or other devices, it can also be used to collect the data required by other marine research, such as loading after the carbon dioxide sensor can be measured carbon dioxide content in seawater, thus helping researchers understand water quality. The researchers said that the biggest advantage is its unmanned boat sailing mobility.
USV has a powerful anti-wave, making it possible to obtain the typhoon sea surface pressure, temperature and wind speed and direction, sea surface temperature and salinity, wave heights and other real-time data in harsh environments, such as typhoons and numerical prediction mechanism provides a follow-up study very valuable information. "Observing long-endurance test through the two-week and through the experience of the typhoon, we detect more advanced and practical confidence unmanned boat MWO series of semi-submersible solar weather. But for the vast marine meteorological and environmental monitoring, twenty-three sent unmanned boat is not enough.
"Hongbin said that the future expect to like stations on land as observation network, using a variety of means of observation unmanned boats, buoys and sea wave-piercing, etc., comprehensive observation network in the sea, and then early access to the practical stage business, marine weather and environmental forecasting to provide more and better information, better serve the maritime safety and the use of resources (land into wide). (Editor: Musheng Yu, Zhu Hongxia).