JPS6447991A - Snow cover measuring method - Google Patents

Snow cover measuring method

Info

Publication number
JPS6447991A
JPS6447991A JP62204591A JP20459187A JPS6447991A JP S6447991 A JPS6447991 A JP S6447991A JP 62204591 A JP62204591 A JP 62204591A JP 20459187 A JP20459187 A JP 20459187A JP S6447991 A JPS6447991 A JP S6447991A
Authority
JP
Japan
Prior art keywords
neutron
observed
atmospheric pressure
raw data
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
JP62204591A
Other languages
Japanese (ja)
Inventor
Kazunori Terao
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62204591A priority Critical patent/JPS6447991A/en
Publication of JPS6447991A publication Critical patent/JPS6447991A/en
Pending legal-status Critical Current

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  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

PURPOSE:To exactly get water equivalent for snow cover in the area of many atmospheric pressure fluctuations and the like by performing the atmospheric pressure correction of raw data of observed neutron quantity and obtaining the running average of said neutron quantity by means of the raw data of the observed neutron quantity and the observed atmospheric pressure input at fixed time intervals. CONSTITUTION:At first, the time 0, 1,..., the raw data of observed neutron quantity Nb0, Nb1... at said time, the other raw data of observed atmospheric pressure P0, P1... at said time, are transmitted to the interface 11 of an arithmetic processing unit from an observed point. Atmospheric pressure fluctuation correction is performed by the use of prescribed expression and the corrective neutron quantities Ns0, Ns1...Ns25 are obtained. Next, the average value of said 24 corrective neutron quantities up to 23 hours are obtained at each hour interval by means of said corrective neutron quantities, the obtained value is regarded as the neutron quantity Ns25, Ns26... at the time, the water equivalent of snow cover on the basis of said value is calculated and output in a printer 14. The neutron fluctuation correction for correction and observation time according to atmospheric pressure fluctuations is performed for the raw data of observed neutron quantity, and measuring accuracy can be improved because the water equivalent of the snow cover is obtained.
JP62204591A 1987-08-18 1987-08-18 Snow cover measuring method Pending JPS6447991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62204591A JPS6447991A (en) 1987-08-18 1987-08-18 Snow cover measuring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62204591A JPS6447991A (en) 1987-08-18 1987-08-18 Snow cover measuring method

Publications (1)

Publication Number Publication Date
JPS6447991A true JPS6447991A (en) 1989-02-22

Family

ID=16493002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62204591A Pending JPS6447991A (en) 1987-08-18 1987-08-18 Snow cover measuring method

Country Status (1)

Country Link
JP (1) JPS6447991A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6931725B2 (en) 1999-12-20 2005-08-23 Matsushita Electric Industrial Co., Ltd. Circuit component built-in module, radio device having the same, and method for producing the same
CN112326684A (en) * 2020-10-21 2021-02-05 阳光电源股份有限公司 Photovoltaic module dust accumulation detection method, device, equipment and storage medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6931725B2 (en) 1999-12-20 2005-08-23 Matsushita Electric Industrial Co., Ltd. Circuit component built-in module, radio device having the same, and method for producing the same
CN112326684A (en) * 2020-10-21 2021-02-05 阳光电源股份有限公司 Photovoltaic module dust accumulation detection method, device, equipment and storage medium
CN112326684B (en) * 2020-10-21 2022-05-24 阳光电源股份有限公司 Photovoltaic module dust accumulation detection method, device, equipment and storage medium

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