JPS6249214A - Observation of swelling on sea - Google Patents
Observation of swelling on seaInfo
- Publication number
- JPS6249214A JPS6249214A JP60188498A JP18849885A JPS6249214A JP S6249214 A JPS6249214 A JP S6249214A JP 60188498 A JP60188498 A JP 60188498A JP 18849885 A JP18849885 A JP 18849885A JP S6249214 A JPS6249214 A JP S6249214A
- Authority
- JP
- Japan
- Prior art keywords
- data
- wave
- wind
- windy
- swelling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明に、レーダの観測結果と風速および風向よシ、
うねシを求める海上におけろうねυの観測方法に関する
ものである。[Detailed Description of the Invention] [Industrial Application Field] This invention includes radar observation results, wind speed and direction,
It concerns a method of observing ridges at sea to find ridges.
一般に船舶を安全に運行したυ、経済的に運行するため
には波の情報、特にうねｐを正確に把握する必要があり
、陸上において広範囲の海域の予報が行なわれ、これが
船舶に通報されている。しかし、それらのデータによっ
て概略についてわかつても、それは各船舶の航行する近
傍の波の情報を正確に表わすものではないので、最終的
なデータは乗組員の目視観測結果によって得ている。In general, in order to operate a ship safely and economically, it is necessary to accurately grasp wave information, especially ridges, and forecasts for a wide range of sea areas are made on land, and this is reported to the ship. ing. However, even if we can get a general idea from these data, it does not accurately represent information about the waves in the vicinity of each ship, so the final data is obtained from the results of visual observation by the crew.
しかしながら目視観測によって正確な情報を得るには熟
練を要し、また夜間は観測が行なえないという欠点を有
している。このためレーダによる観測が試みられている
が、従来提案されているものはいずれも実用化段階まで
至っていない。However, obtaining accurate information through visual observation requires skill and has the disadvantage that observation cannot be performed at night. For this reason, observation using radar has been attempted, but none of the methods proposed so far have reached the stage of practical use.
このような欠点を解決するためにこの発明は、レーダ観
測データと風のデータを用いてうねりを推定するように
したものである。In order to solve these drawbacks, the present invention estimates swell using radar observation data and wind data.
風のデータをもとに風浪データが推測され、レーダ観測
データから風浪データが減算されることによってうねシ
のデータが得られる。Wind and wave data are estimated based on wind data, and ridge data is obtained by subtracting the wind and wave data from radar observation data.
第１図はこの発明の方法を適用してうね９ケ求める装置
のブロック図である。同図において１はレーダ装置、２
は風向風速Ｉ（゛、３は波データ抽出器、４は風浪推定
器、５Ｑ、１減算器であり、波データ抽出器３．風浪推
定器４．減ぷ゛器５がうねりを一求める装置である。FIG. 1 is a block diagram of an apparatus for obtaining nine ridges by applying the method of the present invention. In the figure, 1 is a radar device, 2
is the wind direction and wind speed I(゛, 3 is a wave data extractor, 4 is a wind and wave estimator, 5Q is a subtractor, and the wave data extractor 3. wind wave estimator 4. subtractor 5 is a device for calculating the swell. It is.
このように栂成さＪ′した装置ｄにおいて、レーダ装置
、１から得られ／こ信号が波データ抽出器３に供給され
、第２図（ａ）に示すように、船首方向である０゜の方
向から船尾方向である１８０°の方向までの波エネルギ
分布データが抽出される。このデータは海内の状態を観
測したものであるため、風浪とうねりの両方が含まれて
いるデータである。In the device d constructed in this way, the signal obtained from the radar device 1 is supplied to the wave data extractor 3, and as shown in FIG. Wave energy distribution data is extracted from the direction of 180° to the stern direction. Since this data is based on observations of underwater conditions, it includes both wind and waves and swells.
次に、風向、風速針から得られた信→じと波データ抽出
器３からの信号が風浪推定器４に供給され。Next, the signal from the wave data extractor 3 obtained from the wind direction and wind speed needle is supplied to the wind and wave estimator 4.
第２図（ｂ）に示すように、風浪の強さおよび大きさが
推定される。この時の推定は次のようにして行なわわる
。風浪は船舶の航行区域付近におこる風よって発生する
波であるから、略々風の方向と一致する。このため第２
図（ａ）に１？いて、ｊ虱自と一致する方向のピークは
風浪によって発生していると考えられる。このため、風
浪の強さおよび広が９は、波データ抽出器３から供給さ
ｉ’ｊ、２）データと、風速・風向計２から供給される
データをもとに、理論式によ・りて演算して求められる
。As shown in FIG. 2(b), the strength and size of the wind and waves are estimated. The estimation at this time is performed as follows. Wind waves are waves generated by the wind near the navigation area of the ship, so they roughly match the direction of the wind. For this reason, the second
1 in figure (a)? It is thought that the peak in the direction coincident with the louse is caused by wind and waves. Therefore, the strength and spread 9 of the wind and waves can be determined by a theoretical formula based on the data supplied from the wave data extractor 3 and the data supplied from the wind speed/wind vane 2. It can be found by calculating.
以上のようにして風浪の大きさおよび方向が決まると、
第２図（ａ）に示すレーダ観測デ・−タから第２図（ｂ
）に示すに浪デー＝夕を減−灼する処理が減ｎ器５にお
いて行なわれ、第２図（ｅ）に示すようにうねりのデー
タが求められる。この結果、次のデータはうねりと風浪
のデータに分解されたので、これらのデータをもとにＬ
７て船舶の運行方向および運行速度の決定が行なわれる
。Once the size and direction of the wind and waves are determined as described above,
From the radar observation data shown in Fig. 2(a), Fig. 2(b)
), the process of reducing the wave length is performed in the n reducer 5, and wave data is obtained as shown in FIG. 2(e). As a result, the following data was decomposed into swell and wind and wave data, so based on these data, L
7, the direction and speed of the ship are determined.
なお、求められたデータは船灯方向に対するデータであ
るから、ジャイロコンパスからのデータを用いて負北方
向からのデータに変換して表示もできる。Note that since the obtained data is data for the direction of the ship's lights, it can also be converted into data from the negative north direction using data from the gyro compass and displayed.
以北説明したようにこの発明は、１虱向および風速から
風浪データを推定し、レーダの観測データから風浪デー
タを減算してうねりデータを求めているので、熟練を要
さず、また夜間であっても、うね２りおよび風浪のデー
タが得られるという効果を有する。As explained above, this invention estimates wind and wave data from one direction and wind speed, and subtracts the wind and wave data from radar observation data to obtain swell data, so it does not require any skill and can be used at night. Even if there is, it has the effect that data on swells and wind and waves can be obtained.
第１図はこの発明の一実施例を示すブロック図、第２図
は波の分布を示すグラフである。
１・・・・レーダ装置、２・・・・風速・風向計、３・
・・・波データ抽出器、４・・・・風浪推定器、５・・
・・減算器。FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a graph showing wave distribution. 1... Radar device, 2... Wind speed/wind vane, 3...
... Wave data extractor, 4... Wind and wave estimator, 5...
...Subtractor.
Claims (1)
タを求め、レーダ観測による波面の観測データから風浪
の強さおよび方向のデータを減算してうねりのデータを
求める海上におけるうねりの観測方法。A method for observing swells at sea that obtains data on the strength and direction of wind waves based on wind direction and wind speed data, and subtracts data on the strength and direction of wind waves from wave front observation data obtained by radar observation to obtain swell data. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60188498A JPS6249214A (en) | 1985-08-29 | 1985-08-29 | Observation of swelling on sea |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60188498A JPS6249214A (en) | 1985-08-29 | 1985-08-29 | Observation of swelling on sea |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6249214A true JPS6249214A (en) | 1987-03-03 |
Family
ID=16224778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60188498A Pending JPS6249214A (en) | 1985-08-29 | 1985-08-29 | Observation of swelling on sea |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6249214A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015014472A (en) * | 2013-07-03 | 2015-01-22 | 古野電気株式会社 | Echo signal processing device, ocean wave radar, echo signal processing method, and echo signal processing program |
| JP2016085169A (en) * | 2014-10-28 | 2016-05-19 | 三菱電機株式会社 | Support device for taking off and landing on water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5948667A (en) * | 1982-09-13 | 1984-03-19 | Fujitsu Ltd | Apparatus for measuring swell wave height value |
| JPS6022681A (en) * | 1983-07-19 | 1985-02-05 | Japan Radio Co Ltd | Method and device for wave height radar observation |
-
1985
- 1985-08-29 JP JP60188498A patent/JPS6249214A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5948667A (en) * | 1982-09-13 | 1984-03-19 | Fujitsu Ltd | Apparatus for measuring swell wave height value |
| JPS6022681A (en) * | 1983-07-19 | 1985-02-05 | Japan Radio Co Ltd | Method and device for wave height radar observation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015014472A (en) * | 2013-07-03 | 2015-01-22 | 古野電気株式会社 | Echo signal processing device, ocean wave radar, echo signal processing method, and echo signal processing program |
| JP2016085169A (en) * | 2014-10-28 | 2016-05-19 | 三菱電機株式会社 | Support device for taking off and landing on water |
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