全球中期天气预报（GRAPES-GFS）动能谱及其转折特征分析数据集

利用全球中期天气预报（GRAPES-GFS）模式和2013年5月0.25&deg分辨率预报场，预报时效为192小时，计算每天6小时一次、预报24-192小时简天气预报动能谱，并每6个小时输出一次预报结果数据，包括模式动能谱的垂直分布及动能谱的辐散分量和旋转分量。数据集包括：（1）500-10hPa所选高度层的模式动能谱；（2）拐点位置波数和拐点两侧线性拟合得到的斜率；（3）200hPa高度上的总动能谱、旋转动能谱和辐散动能谱；（4）150hPa高度上的总动能谱、旋转动能谱和辐散动能谱；（5）100hPa高度上的总动能谱、旋转动能谱和辐散动能谱；（6）200、150和100hPa高度上的旋转和辐散动能谱；（7）辐散动能谱与旋转动能谱交点位置波数随高度的变化；（8）辐散动能谱斜率随高度的变化。该数据集存储为.xlsx格式，数据量为170KB。该数据集的分析研究成果发表在《气象学报》73卷第5期。

This dataset is developed based on calculations using the Global Medium-Range Weather Forecast (GRAPES-GFS) model and 0.25° resolution forecast fields from May 2013, with a total forecast lead time of 192 hours.
Kinetic energy spectra of short-range weather forecasts were computed every 6 hours per day for forecast periods ranging from 24 to 192 hours, and the forecast result data was output every 6 hours.
The output data includes the vertical distribution of the model's kinetic energy spectra, as well as the divergent and rotational components of the kinetic energy spectra.
The dataset consists of the following 8 components:
1. Model kinetic energy spectra at selected pressure levels from 500 hPa to 10 hPa;
2. Wavenumbers of inflection point positions and slopes obtained through linear fitting on both sides of each inflection point;
3. Total, rotational and divergent kinetic energy spectra at 200 hPa;
4. Total, rotational and divergent kinetic energy spectra at 150 hPa;
5. Total, rotational and divergent kinetic energy spectra at 100 hPa;
6. Rotational and divergent kinetic energy spectra at 200 hPa, 150 hPa and 100 hPa;
7. Variations of the wavenumbers at the intersection points of divergent and rotational kinetic energy spectra with altitude;
8. Variations of the slopes of divergent kinetic energy spectra with altitude.
This dataset is stored in .xlsx format, with a total data size of 170 KB.
Analytical research findings based on this dataset have been published in *Acta Meteorologica Sinica*, Volume 73, Issue 5.

搜集汇总

背景与挑战

背景概述

该数据集基于全球中期天气预报（GRAPES-GFS）模式和2013年5月0.25°分辨率预报场，提供了192小时预报时效内每6小时一次的动能谱及其转折特征分析数据，包括多个高度层的动能谱分布、辐散和旋转分量等详细信息，数据存储为.xlsx格式，总量为170KB。