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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 38308-2019: Weather forecast verification - Typhoon forecast Status: Valid
Basic dataStandard ID: GB/T 38308-2019 (GB/T38308-2019)Description (Translated English): Weather forecast verification - Typhoon forecast Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: A47 Classification of International Standard: 07.060 Word Count Estimation: 10,133 Date of Issue: 2019-12-10 Date of Implementation: 2020-07-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 38308-2019: Weather forecast verification - Typhoon forecast---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.Weather forecast verification--Typhoon forecast ICS 07.060 A47 National Standards of People's Republic of China Weather forecast check typhoon forecast 2019-12-10 release 2020-07-01 implementation State Administration of Market Supervision Published by the National Standardization Management Committee ContentsForeword III Introduction IV 1 Scope 1 2 Terms and definitions 1 3 Inspection contents and indicators 1 4 Calculation of inspection indicators 2 Reference 5ForewordThis standard was 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 under the jurisdiction of the National Meteorological Disaster Prevention and Mitigation Standardization Technical Committee (SAC/TC345). This standard was drafted. National Meteorological Center. The main drafters of this standard. Wang Haiping, Zhou Qingliang, Xu Yinglong, Gao Shuzhu, and Wang Yan.IntroductionChina is one of the countries most affected by typhoons in the world.High-quality typhoon predictions are crucial to reducing people's lives and property losses. Importantly, typhoon forecast inspection is an important part of promoting the development of typhoon forecasting business. Carry out assessment of typhoon forecast quality It is essential for meteorological operations and scientific researchers, so the establishment of scientific and standardized typhoon forecast quality inspection methods is not only conducive to evaluation The forecaster's comprehensive forecast quality of typhoons can also be used to understand the performance of the typhoon objective forecasting method, which is a solution for the objective forecast of typhoons. Explain applications and improvements to help. In order to unify and standardize the content and index of typhoon forecast and inspection in China, this standard is specially formulated. Weather forecast check typhoon forecast1 ScopeThis standard specifies the inspection content, indicators and calculation of typhoon forecast. This standard applies to typhoon forecast quality assessment and business management. Hurricanes and storms can be used for reference.2 terms and definitionsThe following terms and definitions apply to this document. 2.1 Typhoon typhoon Occurred in tropical Northwest Pacific and South China Sea intensities of tropical storm, severe tropical storm, typhoon, strong typhoon and super typhoon Wind-grade tropical cyclone. 2.2 Typhoon track typhoontrack Track of typhoon center movement. 2.3 Typhoon intensity typhoonintensity The maximum average wind speed of the bottom layer (near the ground or offshore surface) near the typhoon center or the lowest sea level air pressure at the center. Note. At present, the inspection of typhoon intensity forecasts by typhoon forecast business units at home and abroad is mainly based on the maximum wind speed near the typhoon center, and the center is the lowest. Air pressure test is supplemented. 2.4 Typhoon best path typhoonbest-track Typhoon track and intensity in Typhoon Yearbook compiled by China Meteorological Administration. 2.5 Climatic persistence prediction Based on the current location and intensity of the typhoon and the past 12h and 24h trends, combined with historical typhoon paths and statistical information on intensity changes The statistical forecast method of typhoon path and intensity established by stepwise regression method is used. 2.6 Forecast verification According to the forecast results and actual observations, the quality of the forecast is checked according to a certain method. 2.7 Forecasting skills The accuracy of one forecasting method relative to the other is used to compare the relative quality of the two forecasting methods. Note. The accuracy rate of actual forecasting is generally compared with the accuracy rate of continuous climate forecasting methods. The latter is equal to or lower than the latter, and is called "zero skill" or "negative skill".3 Inspection contents and indicatorsTyphoon forecast quality inspection includes typhoon path forecast, typhoon intensity forecast error calculation, and typhoon forecast skill assessment. Inspection Finger ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 38308-2019_English be delivered?Answer: Upon your order, we will start to translate GB/T 38308-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 38308-2019_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 38308-2019_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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