Bosai Solution ID : JBP00092

POTEKA Weather Observation and Information Service
Real-time weather observation catches the signs of weather changes andchanges the weather disaster prevention in your area.

HazardLand Slide Cyclone Storm Surge Flood Drought Tornado Heat Wave Cold Wave

Solution Purpose
Prevention & Mitigation Preparedness Response

Solution Theme
Risk Assessment Disaster Prevention Plan Infrastructure Technology Building Technology Information &Communication Technology Rescue & Medical Treatment Products & Goods Education & Training

Technology Subject
Risk Monitoring Plan for Relief & Recovery Support River & Basin Dam & Reservoir Coast Sabo RoadRailways Airport Port Essential Utilities Urban Emergency Base & Back-up Facility Information Gathering
Information Analysis & Judgement Information Communication Information Platform Emergency Rescue
Operation Machinery & Equipment Educational Publication

Advantages
POTEKA collects information from small weather meters certified by the Japan Meteorological Agency
on a global cloud server and provides it via the Web. If meteorological gauges are installed in a detailed
area (target 2km mesh), accurate weather information can be pinpointed. In principle, real-time weather
information is made public and can be shared with anyone via the Web, making it possible to makeindependent decisions. The basic items are temperature, barometric pressure, relative humidity, winddirection and speed, solar radiation, rainfall, etc. Various sensors such as water level, snow depth,＜ Downloaded from www.bosai-jp.org ＞

1 / 10cameras, etc. can be added as options.

Solution Illustrated

Background

POTEKA is a small meteorological instrument certified by the Japan Meteorological Agency (JMA), whichenables information disclosure. The most important feature of this service is that it is free of the burdenof the JMA certification fee.
The most significant feature of the service is that the real-time information from the JMA-certified small＜ Downloaded from www.bosai-jp.org ＞

2 / 10meteorological instruments is available on the Web as open data that can be shared with anyone in theworld.
This enables us to obtain pinpoint observation data that cannot be supplemented by domestic AMeDAS,
and to improve forecast accuracy and alert nearby stations of approaching extreme weather.
Real-time pinpoint information from POTEKA.net will be useful for making decisions on voluntaryevacuation before a critical situation arises.
In Japan, about 1,000 units of POTEKA.net have already been installed by local governments andprivate companies, but the accuracy and range of use will be improved by further dense observation.
The optional water level sensor, called a crisis management type water level sensor in Japan, is a longlife, low-cost water level sensor that can be selected from three types: ultrasonic, radio wave, andhydraulic.
For more information on water level gauges, see the link below.
https://www.meisei.co.jp/english/products/hydrology/hydrology_sub/p2628

Exposition of the Solution【Observation items】 Equipped with a rain gauge and seven weathersensors

The following eight elements of meteorological data can be measured: air temperature*, air pressure*,
relative humidity*, wind direction and speed*, solar radiation, rainfall*. (*: with JMA certification)＜ Downloaded from www.bosai-jp.org ＞

3 / 10【Optional sensors】
Various sensors such as water level meter, camera, snow,
PM2.5, CO2, radiation, etc. can be installed.

【Installation】
With a 1m x 1m south-facing open space for the solar panels, and access to a cell phone, it only takes
an hour to assemble. You can start observing right away.

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Example of rooftop installation

Example of pole installation【Method of providing data】
POTEKA's weather information is provided via POTEKA.net, which can be accessed by anyone with a PCor smartphone on the Web, and can also be provided via WebAPI to import data into your existing
system.

【Applications for disaster prevention】

Measures against flooding and inundation
There are many areas that suffer from flooding and inundation
due to weather changes such as localized heavy rains and storm
surges caused by sudden changes in atmospheric pressure. By
installing POTEKA in areas that are prone to flooding andinundation due to topography, it is necessary to properly
monitor actual rainfall conditions and prepare for disasters.

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5 / 10To prevent landslides
Landslides and other disasters are caused by localized heavy
rainfall, but sudden heavy rainfall is difficult to predict. POTEKA
uses an ultra-dense observation network to monitor thelocation and amount of rainfall in detail. The POTEKA system
uses an ultra-high-density observation network to monitor thelocation and amount of rainfall in detail, enabling an accurate
understanding of the situation in and around hazardous areasand prompt response. It is also possible to determine thepossibility of river flooding based on actual measurements.

To prevent heat stroke
POTEKA calculates the "heat index" from the observed
temperature and humidity. Also, since the "heat index" changes
even at a distance of about 2 km, POTEKA's detailed observation
network is useful. It is possible to alert people to heat stroke inunits such as schools and communities where the system isinstalled.

For unexpectedly strong rain
POTEKA is a real-time observation system, and it iseasy to see where a large amount of rain is falling.
Based on the meteorological database accumulatedby the meticulous observation network, POTEKA candetect the direction of rainfall in real time, and informyou of the occurrence of localized heavy rainfall.
The system can also be used by schools to decide
when to dismiss students in groups to avoid guerrillarains for their safety.

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6 / 10To protect against wind gusts
In order to protect our daily lives from wind gusts andtornadoes, which are said to be on the increase in recentyears, it is important to catch the signs as soon as possible,and POTEKA captures sudden weather changes atobservation points, increasing the possibility of detecting
weather changes as a sign before a wind gust occurs.

Achievements of Examples

http://www.potekanet.com/
Introduction to POTEKA.NET
Select 〔EN〕/〔JP〕

No special software is required, and the observation data can be freely
viewed by anyone via the Internet.

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7 / 10Meteorological data collected from theinstalled meteorological meters can beviewed on the "POTEKA NET" website. You
can access it anytime, anywhere from yourPC or smartphone. You can grasp theweather conditions of the place you wantto know in real time. You can also selectfrom 11 weather data patterns and display
them on a map.

Distribution maps and rain cloud radar can also be displayed on the map.
POTEKA NET can display real-time
weather information of observation
points on a map in various formats. It isalso possible to display rainfall andtemperature distribution maps and rain
cloud radar, which can be used invarious ways by comparing them withthe conditions at the observation point.
Historical data can also be displayedand viewed.

For subscribers only
Data can be displayed in graphs and tables, and can be used for data
analysis in times of disaster.

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8 / 10POTEKA NET has a database of various
observed meteorological data, which canbe displayed in graphs and tables.
The data can be displayed, browsed, oroutput in a variety of units such as days,months, and years.
The output format supports CSV andPDF download. It can be used for data
analysis in times of disaster or as acountermeasure for future disasters. It
can also be used for business purposes,
research materials, and educationalmaterials.

Other References

https://www.meisei.jp/poteka-e/assets/movie/m1280.mp4＜ Downloaded from www.bosai-jp.org ＞

9 / 10https://www.meisei.jp/poteka-e/
Corporate Profile
Meisei Electric Co., Ltd.
Toyosu IHI bldg. 10F, 3-1-1 Toyosu, Koto-ku, Tokyo, 135-8115, Japan Tel. : +81-3-6204-8254
 E-mail : product_eng@meisei.co.jp
 Website : http://www.meisei.co.jp/english/＜ Downloaded from www.bosai-jp.org ＞

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