CEOP Model Output : MOLTS GLDAS data

Ten operational Numerical Weather Prediction (NWP) and two data assimilation centers are currently contributing analysis/assimilation and forecast model products from global and regional NWP suites, including both operational and reanalysis systems to this component of CEOP. The contributing centers include: BoM: Bureau of Meteorology CPTEC: Centro de Previsao de Tempo e Estudos Climaticos ECMWF: European Centre for Medium-Range Weather Forecasts ECPC: Experimental Climate Prediction Center EMC: EPSON Meteo Center (Centro EPSON Meteo) GLDAS: Global Land Data Assimilation System GMAO: NASA Global Modeling and Assimilation Office JMA: Japan Meteorological Agency MSC: Meteorological Service Canada NCEP: National Centers for Environmental Prediction NCMRWF: National Center for Medium Range Weather Forecasting UKMO: UK Met Office The Max-Planck Institute for Meteorology (MPIM) in coordination with the ICSU World Data Center for Climate (WDCC) in Hamburg, Germany was designated as the CEOP model output archive center. The WDCC is administered by the Model and Data Group (M&D) at MPIM and the German Climate Computing Center (DKRZ). To assist with the organization of this activity during the Coordinated Enhanced Observing Period ('CEOP'), a Model Output Management Document was drafted as a guide for the participating centers to use in setting up their processes for meeting their commitments to 'CEOP'. The Guidance Document addressed the two issues of (1) the model output variables requested by 'CEOP' and (2) the two types of requested model output, namely global gridded (in GRIB format) and site-specific Model Output Location Time Series (MOLTS) at each of the 'CEOP' Reference Sites. A new version of the Guidance Document will be compiled that clarifies what model output data will be generated by the NWP Centers and Groups contributing to the model output component of Coordinated Energy and Water Cycle Observations Project (CEOP) and how they will interface/transfer the data that will be handled and retained at the WDCC. The issues covered in the document will include: (1) global versus regional products; (2) desired assimilation output; Interval and length of free-running forecasts; (3) Operational versus reanalysis data; (4) the CEOP schedule/archive periods; (5) the number and locations of MOLTS sites; and (6) the homogenizing of the model output and metadata formats (i.e. standard parameters). Results up to this point in the CEOP model output generation effort make it clear that the transfer aspect of the data handling effort has been progressing well. Data from all twelve Centers participating in CEOP have been received at the data archive center and has either been placed into the database at the Hamburg facility, or is in the process of being entered into the database. The current data holdings in the MPIM archive can be viewed http://www.mad.zmaw.de/fileadmin/extern/wdc/ceop/Data_timeline_L_12.pdf.

目前共有10个业务数值天气预报（Numerical Weather Prediction, NWP）中心与2个数据同化中心，向协调增强观测期（Coordinated Enhanced Observing Period, CEOP）的该组件提供全球及区域数值天气预报系统的分析/同化与预报模式产品，涵盖业务系统与再分析系统两类。参与贡献的中心包括：
BoM：澳大利亚气象局（Bureau of Meteorology）
CPTEC：巴西气象预报与气候研究中心（Centro de Previsão de Tempo e Estudos Climáticos）
ECMWF：欧洲中期天气预报中心（European Centre for Medium-Range Weather Forecasts）
ECPC：试验气候预报中心（Experimental Climate Prediction Center）
EMC：爱普生气象中心（EPSON Meteo Center，Centro EPSON Meteo）
GLDAS：全球陆面数据同化系统（Global Land Data Assimilation System）
GMAO：NASA全球建模与同化办公室（NASA Global Modeling and Assimilation Office）
JMA：日本气象厅（Japan Meteorological Agency）
MSC：加拿大气象服务局（Meteorological Service Canada）
NCEP：美国国家环境预报中心（National Centers for Environmental Prediction）
NCMRWF：印度国家中期天气预报中心（National Center for Medium Range Weather Forecasting）
UKMO：英国气象局（UK Met Office）

德国马克斯·普朗克气象研究所（Max-Planck Institute for Meteorology, MPIM）与位于德国汉堡的国际科学联合会（International Council for Science, ICSU）世界气候数据中心（World Data Center for Climate, WDCC）合作，被指定为CEOP模式输出档案中心。WDCC由MPIM的模式与数据工作组（Model and Data Group, M&D）与德国气候计算中心（German Climate Computing Center, DKRZ）共同管理。

为协助协调增强观测期（CEOP）期间此项活动的组织工作，项目组编制了《模式输出管理文档》（Model Output Management Document），作为参与中心履行CEOP相关承诺的流程指南。该指南文档（Guidance Document）涵盖两大核心议题：(1) CEOP所请求的模式输出变量；(2) 两类请求的模式输出产品，即全球格点化（GRIB格式）数据，以及CEOP各参考站点的专属站点模式输出时间序列（Model Output Location Time Series, MOLTS）。

新版指南文档正在编制中，旨在明确参与协调能量与水循环观测计划（Coordinated Energy and Water Cycle Observations Project, CEOP）模式输出组件的数值天气预报中心及团队所生成的模式输出数据类型，以及它们如何对接、传输将由WDCC处理和留存的数据。文档将涵盖以下议题：(1) 全球与区域产品的区分；(2) 所需同化输出、自由预报的间隔与时长；(3) 业务数据与再分析数据的区分；(4) CEOP计划与档案周期；(5) MOLTS站点的数量与位置；(6) 模式输出与元数据格式的统一（即标准参数）。

截至CEOP模式输出生成工作当前阶段的成果表明，数据处理流程中的传输环节进展顺利。所有12家参与CEOP的中心的数据已送达数据档案中心，要么已录入汉堡设施的数据库，要么正处于录入流程中。当前MPIM档案库中的数据馆藏可通过以下链接查阅：http://www.mad.zmaw.de/fileadmin/extern/wdc/ceop/Data_timeline_L_12.pdf。