JPS6447991A - Snow cover measuring method - Google Patents
Snow cover measuring methodInfo
- 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
Links
Landscapes
- 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.
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)
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 |
-
1987
- 1987-08-18 JP JP62204591A patent/JPS6447991A/en active Pending
Cited By (3)
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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