搜索结果: 1-15 共查到“the ECMWF”相关记录29条 . 查询时间(0.109 秒)
数百张预报图像数据免费开放 ——ECMWF走向公开数据道路
预报 图像数据 ECMWF 公开数据
2020/10/21
从2020年10月7日起，欧洲中期天气预报中心（以下简称ECMWF）的数百张预报图免费向所有人开放。其中，温度、风、降水、云和海浪的中长期预报图只是免费提供的部分产品。随着ECMWF对集合预报的关注，图像也涵盖了基于概率的信息，为预测置信度提供指导。极端条件概率以及热带和温带气旋活动也包括在内。
ECMWF二氧化碳监测项目有望在2023年完成
ECMWF 二氧化碳 监测项目 2023年
2020/10/21
近日，欧洲中期天气预报中心（ECMWF）项目协调人透露，一项与人类活动有关的全球二氧化碳排放量监测和估算能力的项目——二氧化碳人类排放（CHE）项目正在建立，该项目由欧盟资助，按计划将在2023年前交付原型系统。该项目汇集了来自欧洲8个国家22个合作组织，为期三年并由ECMWF负责协调。
ECMWF推进欧洲极端天气次季节-季节可预测性研究
ECMWF 欧洲 天气 预测性
2020/10/21
次季节-季节预测是无缝隙预测方法的核心组成部分。欧洲中期天气预报中心（ECMWF）在2016年出台的未来十年战略规划中就包括次季节-季节可预测性目标，其中除了计划将高影响天气的集合预报时效提前至两周外，还决定到2025年将大尺度天气系统和多系统之间转变的预报时间提前至4周。
欧洲中期天气预报中心（以下简称ECMWF）计划于本月底对其集合预报系统（以下简称IFS）进行升级，利用一种新方法显著提升平流层温度预报水平。
Tropospheric chemistry in the Integrated Forecasting System of ECMWF
Atmospheric chemistry comprehensive forecast system weather prediction center new chemical module aerosol module chemical transfer mode ozone two-way coupling
2015/5/18
A representation of atmospheric chemistry has been included in the Integrated Forecasting System (IFS) of the European Centre for Medium-Range Weather Forecasts (ECMWF). The new chemistry modules comp...
Global mass fixer algorithms for conservative tracer transport in the ECMWF model
Global mass fi xer algorithms conservative tracer transport
2014/12/18
Various mass fixer algorithms (MFAs) have been
implemented in the Integrated Forecasting System (IFS) of
the European Centre for Medium-Range Weather Forecasts
(ECMWF) to ensure mass conserva...
对流层延迟是卫星导航定位的主要误差源,气象观测的数值预报资料可用来计算对流层延迟改正量.本文通过分布于亚洲地区的49个GPS台站一年的实测ZTD资料,对利用欧洲中尺度天气预报中心(ECMWF)分析资料、美国国家环境预报中心(NCEP)再分析资料和NCEP预报资料,计算对流层天顶延迟(ZTD)改正的有效性和可能达到的精度进行了评估,分析了ECMWF和NCEP在亚洲地区的适用程度和其分辨率对计算ZTD...
Verification of the new ECMWF ERA-Interim reanalysis over France
Verification new ECMWF ERA-Interim France
2011/3/15
An evaluation of the global ECMWF atmospheric reanalysis ERA-Interim (with a 0.5° grid) is performed over France, based on the high resolution (8 km) SAFRAN atmospheric reanalysis. The ERA-Interim pre...
The use of IASI data to identify systematic errors in the ECMWF forecasts of temperature in the upper stratosphere
IASI data systematic errors the ECMWF temperature the upper stratosphere
2011/2/25
Since data from the Infrared Atmospheric Sounding Interferometer (IASI) became available in 2007, a number of papers have appeared in the literature which have reported relatively large discrepancies ...
Coupling global chemistry transport models to ECMWF's integrated forecast system
global chemistry transport models ECMWF's integrated forecast system
2010/2/5
The implementation and application of a newly developed coupled system combining ECMWF's integrated forecast system (IFS) with global chemical transport models (CTMs) is presented. The main objective ...
Skill prediction of local weather forecasts based on the ECMWF ensemble
Skill prediction local weather forecasts ECMWF ensemble
2009/11/12
Ensemble Prediction has become an essential part of numerical weather forecasting. In this paper we investigate the ability of ensemble forecasts to provide an a priori estimate of the expected foreca...
Wave fluxes of equatorial Kelvin waves and QBO zonal wind forcing derived from SABER and ECMWF temperature space-time spectra
Wave fluxes equatorial Kelvin waves QBO zonal wind forcing SABER
2009/6/22
The quasi-biennial oscillation (QBO) of the zonal mean zonal wind is a dynamical phenomenon of the tropical middle atmosphere. Influences of the QBO can even be found at mid and high latitudes. It is ...
Evaluation of upper tropospheric humidity forecasts from ECMWF using AIRS and CALIPSO data
upper tropospheric humidity forecasts ECMWF AIRS CALIPSO
2009/3/13
An evaluation of the upper tropospheric humidity from the European Centre of Medium-Range Weather Forecasts (ECMWF) Integrated Forecast System (IFS) is presented. We first make an analysis of the spin...
利用 ＥＣＭＷＦ产品对庆阳极端气温释用效果分析
欧洲预报 极端气温 释用 效果分析
2013/1/15
利用 ＣＭＳＶＭ的回归方法，用２００３～２００７年的欧洲数值预报格点资料和庆阳市８个自动站极端气温资料建立最高最低气温预报模型。２００８年业务运行效果检验评估表明：５ｄ最高、最低气温综合平均预报准确率达到 ６４％和 ７１％，对实时业务有较好的指导作用。最高、最低气温准确率随着预报时效的延长效果降低，最低比最高气温的预报准确率高。最低气温预报效果春夏季好于秋冬季，最高气温相反。最高、最低气温绝对误差...
Technical note: analytical estimation of the optimal parameters for the EOF retrievals of the IASI Level 2 Product Processing Facility and its application using AIRS and ECMWF data
EOF retrievals IASI Level 2 Product Processing Facility ECMWF
2009/1/4
The Empirical Orthogonal Function (EOF) retrieval technique consists of calculating the eigenvectors of the spectra to later perform a linear regression between these and the atmospheric states, this ...