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GB/T 33666-2017: Identification method for El Nino/La Nina events
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| GB/T 33666-2017 | English | 199 |
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Identification method for El Nino/La Nina events
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GB/T 33666-2017
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Basic data | Standard ID | GB/T 33666-2017 (GB/T33666-2017) | | Description (Translated English) | Identification method for El Nino/La Nina events | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A47 | | Classification of International Standard | 07.060 | | Word Count Estimation | 10,132 | | Date of Issue | 2017-05-12 | | Date of Implementation | 2017-12-01 | | 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 | | Summary | This standard specifies the method of the El Ni?o/La Ni?a event, including the concepts related to the event, the definition of the monitoring index, and the strength and type determination. This standard applies to the meteorological, marine sector El Ni?o/La Nina event business monitoring and research institutes, universities and other relevant departments. | GB/T 33666-2017: Identification method for El Nino/La Nina events---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.
Identification method for El Nino/La Nina events
ICS 07.060
A47
National Standards of People's Republic of China
El Niño/La Niña Incident Method
2017-05-12 released
2017-12-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Directory
Preface I
Introduction II
1 Scope 1
2 terms and definitions
Main key areas and indices for monitoring of sea surface temperature
3.1 Monitoring key areas 1
3.2 NINO3 Index 2
3.3 NINO4 Index 2
3.4 NINO3.4 Index 2
3.5 Eastern El Niño/La Nina Index 2
3.6 Central El Niño/La Nina Index 2
4 Discrimination method 2
4.1 Event 2
4.2 Event duration 3
4.3 Event intensity 3
4.4 Event Type 3
Appendix A (informative) El Niño/La Niña Incident Item 4
Reference 5
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by the China Meteorological Administration.
This standard is nationalized by the National Climate and Climate Change Standardization Technical Committee (SAC/TC540).
The drafting unit of this standard. National Climate Center, China Meteorological Science Research Institute.
The main drafters of this standard. Ren Hongli, Sun Chenghu, Ren Fumin, Yuan Yuan, Lu Bo, Tian Ben, Zuo Jinqing, Liu Ying, Cao Lu, Han Rongqing, Jia Xiaolong,
Liu Changzheng.
Introduction
El Niño/La Nina refers to the equatorial, eastern Pacific sea surface of a large range of abnormal abnormal warm/cold phenomenon, is the climate system interannual climate
The strongest signal in change. The occurrence of the El Niño/La Niña incident will not only directly cause the drought in the tropical Pacific and its surrounding areas,
Heavy rain and other catastrophic extreme weather and climate events, but also in the form of remote relations indirectly affect the rest of the world weather and lead to gas
Like a disaster. In particular, similar to the.1998 strong El Niño event will cause China's Yangtze River Basin serious floods, to the people's lives
Property security and China's economic development has a huge impact.
In view of the fact that there is still a lack of uniform El Niño/La Niña incident criteria, in order to standardize the El Niño/La Niña events
Criteria for the promotion of climate business and related research work carried out by summing up the existing event monitoring index at home and abroad to absorb the field
The latest research results, to develop this standard.
El Niño/La Niña Incident Method
1 Scope
This standard specifies the method of identification of the El Niño/La Niña incident, including the concepts related to the event, the definition of the monitoring index and the
Degree and type.
This standard applies to meteorological, marine sector El Niño/La Nina event business monitoring and research institutes, universities and other relevant departments
use.
2 terms and definitions
The following terms and definitions apply to this document.
2.1
Sea surface temperature seasurfacetemperature; SST
The value of ocean surface temperature.
Note. The unit is in degrees Celsius (C).
2.2
Sea surface temperature abnormality SSTanomaly; SSTA
The difference between the sea surface temperature and the average annual climate.
2.3
El Nino/La Nina event El Niño/LaNiñaevents
In the equatorial and eastern Pacific sea surface temperature anomalies (SSTA) there is a wide range of warm/cold, and the strength and duration reach a certain condition
The phenomenon of tropical sea-air interaction is the product.
Note. The SSTA center is located in the eastern equatorial Pacific Ocean, known as the Eastern (or Eastern Pacific, Cold) El Nino/La Niña event; the SSTA center is located at
The equator of the Pacific Ocean, known as the central type (or the Pacific type, warm pool type, day line type) El Nino/La Niña event.
3 Main sea temperature monitoring key areas and indices
3.1 Monitoring key areas
Figure 1 shows the key areas of the El Niño/La Niña event, including the NINO1 zone (90 ° W ~ 80 ° W, 10 ° S ~ 0 °)
(150 ° W ~ 90 ° W, 5 ° S ~ 5 ° N), NINO4 (160 ° E ~ 150 ° W, 5 ° S ~ 5 ° N) and NINO3.4 (170 ° W ~
120 ° W, 5 ° S to 5 ° N).
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