JPS5760275A - Estimating device for two-dimentional rainfall strength distribution - Google Patents

Estimating device for two-dimentional rainfall strength distribution

Info

Publication number
JPS5760275A
JPS5760275A JP13520880A JP13520880A JPS5760275A JP S5760275 A JPS5760275 A JP S5760275A JP 13520880 A JP13520880 A JP 13520880A JP 13520880 A JP13520880 A JP 13520880A JP S5760275 A JPS5760275 A JP S5760275A
Authority
JP
Japan
Prior art keywords
rainfall
dimentional
distribution
strength distribution
time
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
Application number
JP13520880A
Other languages
Japanese (ja)
Inventor
Hiroyuki Mizutani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP13520880A priority Critical patent/JPS5760275A/en
Publication of JPS5760275A publication Critical patent/JPS5760275A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01W—METEOROLOGY
    • G01W1/00—Meteorology
    • G01W1/14—Rainfall or precipitation gauges

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Atmospheric Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE:To estimate a two-dimentional rainfall strength distribution which will be created several hours later, by a method wherein, from a time system of a two- dimentional strength distribution of rain falling for several fours, a condition on the movement of distribution and an influence of configuration of the ground are extracted, and said information is used. CONSTITUTION:A two-dimentional rainfall strength distribution f(x, y) is observed in a digital amount by a rainfall radar, where an x-axis is a direction extending east and west, an y-axis a direction extending south and north, and f(x, y) is a rainfall per unit hour at a point (x, y). If a distribution, creeted kXDELTAt time later from a reference time, is represented in fk(x, y) and moves by u in the east and west direction and by v in the sound and north direction during a DELTAt time, (u, v) can be estimated by finding a value minimizing an equalityI, (u, v), which minimize an equality II, are found by taking a rainfall variation rate w(x, y) at each point into consideration, and w(x, y) is further corrected with the result. The desired (u, v) and w(x, y) are found by repeating and smoothing the operations. The use of the result and an equality III permits the estimation of a ditribution fL (x, y) which is created several hours later after a current distribution fk(x, y).
JP13520880A 1980-09-30 1980-09-30 Estimating device for two-dimentional rainfall strength distribution Pending JPS5760275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13520880A JPS5760275A (en) 1980-09-30 1980-09-30 Estimating device for two-dimentional rainfall strength distribution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13520880A JPS5760275A (en) 1980-09-30 1980-09-30 Estimating device for two-dimentional rainfall strength distribution

Publications (1)

Publication Number Publication Date
JPS5760275A true JPS5760275A (en) 1982-04-12

Family

ID=15146373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13520880A Pending JPS5760275A (en) 1980-09-30 1980-09-30 Estimating device for two-dimentional rainfall strength distribution

Country Status (1)

Country Link
JP (1) JPS5760275A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01321393A (en) * 1988-06-23 1989-12-27 Aichi Electric Co Ltd Thunder course forecasting system
CN113269376A (en) * 2021-07-19 2021-08-17 中国水利水电科学研究院 River flood peak flow range calculation method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01321393A (en) * 1988-06-23 1989-12-27 Aichi Electric Co Ltd Thunder course forecasting system
CN113269376A (en) * 2021-07-19 2021-08-17 中国水利水电科学研究院 River flood peak flow range calculation method
CN113269376B (en) * 2021-07-19 2021-11-12 中国水利水电科学研究院 River flood peak flow range calculation method

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