QX/T 534-2020 in English
VALIDData element for meteorology - General
- Issued on:2020-01-21
- Implemented on:2020-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$272.00
| Standard No: | QX/T 534-2020 |
| Document status: | VALID |
| Title in English: | Data element for meteorology - General |
| Title in Chinese: | 气象数据元 总则 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2020-01-21 |
| Implemented on: | 2020-05-01 |
| ICS Classification: | 07.060-Geology. Meteorology. Hydrology |
| Chinese Classification: | A47-Meteorology |
| Professional Classification: | QX-Meteorology |
| Related Keywords: | data element
temperature data element data elements meteorological data elements data element duplication rate |
| Related Topics: | Total nitrogen data
Meteorological data Measurement of Meteorological Data Meteorological data small meteorological data Micro weather station data Meteorological monitoring system data Meteorological data element Meteorological and hydrological metadata qx/t-2020 qx/t 567-2020 |
本标准规定了气象数据元的确定规则、类型和描述方法、属性以及编制规划。本标准适用于规范气象数据元的编制、注册和维护管理。
Introduction
Standard Framework and Technology Evolution
QX/T534-2020, as the basic specification for data standardization in the meteorological industry, has established a classification system for 23 types of data elements, including observation equipment, atmospheric elements, space weather, etc. This standard inherits the metadata framework of GB/T18391 and integrates the international coding rules of WMO-No.306 to form a three-dimensional data element model of "object-characteristic-representation" with Chinese meteorological characteristics.
| Version | Main changes | Technological breakthroughs |
|---|---|---|
| QX/T133-2011 | Element classification and coding | Establish a 5-digit coding system |
| QX/T534-2020 | Attribute description methodology | 15 structured attribute definitions |
Core content analysis
1. Three elements of data element
The standard innovatively proposes that meteorological data elements must include: objects (such as Automatic Weather Station), Characteristics (such as sampling frequency), and Representation (such as floating point type). When the three are the same, they are considered to be the same data element, and the measurement unit, spatiotemporal attributes, etc. are not used to distinguish them.
2. Attribute Classification System
| Attribute Category | Key Attribute | Constraints |
|---|---|---|
| Identification Class | Chinese Name/Code | Required |
| Definition Class | Concept Definition | Required |
| Representation Class | Data Type/Unit | Condition Required |
Implementation and Application Suggestions
Construction of Meteorological Big Data Platform
At the provincial levelMeteorological Big Data Center, after adopting this standard:
- Data element duplication rate is reduced by 62%
- Metadata integrity is increased to 98%
- Cross-system exchange efficiency is increased by 3 times
Version Management Specification
The standard requires the use of Vi.j version number format. Changes in the major version number indicate incompatible modifications, and changes in the minor version number indicate functional expansion. For example, when the temperature data element is upgraded from V1.0 to V2.0, the mapping relationship needs to be rebuilt.
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