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Specifications for surface meteorological observation -- Evaporation
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Basic data
| Standard ID | GB/T 35230-2017 (GB/T35230-2017) |
| Description (Translated English) | Specifications for surface meteorological observation -- Evaporation |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | A47 |
| Classification of International Standard | 07.060 |
| Word Count Estimation | 14,160 |
| Date of Issue | 2017-12-29 |
| Date of Implementation | 2018-07-01 |
| Regulation (derived from) | National Standards Bulletin 2017 No. 32 |
| Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China |
GB/T 35230-2017: Specifications for surface meteorological observation -- Evaporation
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Specifications for surface meteorological observation - Evaporation
ICS 07.060
A47
National Standards of People's Republic of China
Ground meteorological observation specification evaporation
2017-12-29 Posted
2018-07-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
The "Ground Meteorological Observations" series of standards include the following 17 standards.
--- GB/T 35221 General rules of ground meteorological observation;
--- GB/T 35222 standard meteorological observation cloud;
--- GB/T 35223 standard meteorological observation meteorological visibility;
--- GB/T 35224 meteorological observation standard weather phenomenon;
--- GB/T 35225 atmospheric meteorological observation standard pressure;
--- GB/T 35226 meteorological observation standard air temperature and humidity;
--- GB/T 35227 meteorological observation standard wind direction and wind speed;
--- GB/T 35228 standard meteorological observation of precipitation;
--- GB/T 35229 specifications for surface weather observation snow depth and snow pressure;
--- GB/T 35230 ground meteorological observation norms evaporation;
--- GB/T 35231 standard meteorological observation of radiation;
--- GB/T 35232 meteorological observation standard sunshine;
--- GB/T 35233 ground meteorological observation standard ground temperature;
--- GB/T 35234 ground meteorological observation standard frozen soil;
--- GB/T 35235 ground meteorological observation norms wire ice;
--- GB/T 35236 ground meteorological observation standard ground conditions;
--- GB/T 35237 automatic observation of ground meteorological observation norms.
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by China Meteorological Administration.
This standard by the National Meteorological Instruments and Methods of Standardization Technical Committee (SAC/TC507) centralized.
This standard drafting unit. Yunnan Meteorological Administration, Hubei Provincial Meteorological Bureau, Meteorological Bureau of China Meteorological Bureau, Jiangxi Meteorological Bureau, Jilin Province
Bureau of Meteorology, Bureau of Meteorology of Shandong Province, Bureau of Meteorology of Henan Province, Bureau of Meteorology of Shanxi Province.
The main drafters of this standard.Li Li, Yang Zhibiao, painted red, Xiong Jiayu, Ge Chunfeng, Gao Min, Cao Tie, Song world level.
Ground meteorological observation specification evaporation
1 Scope
This standard specifies the technical requirements and observational methods for observing evaporation in surface meteorological observations.
This standard applies to the observation of evaporation in the ground meteorological observation.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 35221 General Rules for Surface Weather Observation
3 Terms and definitions
GB/T 35221 and defined by the following terms and definitions apply to this document.
3.1
Evaporation evaporationamount
In a certain period of time, a certain volume of water from the liquid or solid into a vapor amount.
4 General requirements
4.1 Determination of equipment
Apparatus for the determination of evaporation, including large evaporators (see annex A), small evaporators (see annex B) and evaporating cells.
4.2 equipment installation site
Large evaporator installed in the observation field west, small evaporator should be installed in the east of the large evaporator, the two separated by 4m, evaporation
Pool installation should be at least 50m away from the observatory.
4.3 Evaporation of water
It is advisable to use water that represents the natural water bodies (rivers, lakes and rivers) of the local area. Drinking water (well water, tap water) is available in areas where natural water is difficult.
5 large evaporator
5.1 Construction
Large evaporator by the evaporation barrel, hydrosphere, overflow bucket and stylus composition, see Appendix A structure.
5.2 Installation
5.2.1 evaporation barrel
Large evaporator installed in the observation field, installation, strive to dig less original soil layer. The method and the steps are as follows.
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