CONFIDENCE ANALYSIS OF NCEP/NCAR 50-YEAR GLOBAL REANALYZED DATA IN CLIMATE CHANGE RESEARCH IN CHINA

Xu Ying; Ding Yihui; Zhao Zongci

Vol.12, NO.3, 2001

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2001 > 12(3): 337-347

Xu Ying, Ding Yihui, Zhao Zongci. Confidence analysis of NCEP/NCAR 50-year global reanalyzed data in climate change research in China. J Appl Meteor Sci, 2001, 12(3): 337-347.

Citation:

Xu Ying, Ding Yihui, Zhao Zongci. Confidence analysis of NCEP/NCAR 50-year global reanalyzed data in climate change research in China. J Appl Meteor Sci, 2001, 12(3): 337-347.

Xu Ying, Ding Yihui, Zhao Zongci. Confidence analysis of NCEP/NCAR 50-year global reanalyzed data in climate change research in China. J Appl Meteor Sci, 2001, 12(3): 337-347.

Citation:

Xu Ying, Ding Yihui, Zhao Zongci. Confidence analysis of NCEP/NCAR 50-year global reanalyzed data in climate change research in China. J Appl Meteor Sci, 2001, 12(3): 337-347.

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CONFIDENCE ANALYSIS OF NCEP/NCAR 50-YEAR GLOBAL REANALYZED DATA IN CLIMATE CHANGE RESEARCH IN CHINA

National Climate Center, Beijing 100081

Received Date: 2000-03-29
Rev Recd Date: 2000-07-27
Publish Date: 2001-08-31

Abstract

Abstract

The confidence of the NCEP/NCAR 50-year Reanalyzed data in climatic change research in China has been examined and the results show that in the reanalyzed data there exist some uncertainties in studying the trends of climatic change. The confidence of the reanalyzed data is better in the eastern and southern parts of China than in the western and northern for surface temperature and surface pressure. The surface temperature is more useful than surface pressure. The reanalyzed data is better after 1979 than before 1979.
- Reanalyzed data;
- Climatic change;
- Confidence

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References(6)

Figures and Tables

图 1 呼和浩特、广州站年和1、7月平均温度时间序列变化图 (单位: ℃)

(实线代表实测值, 虚线代表NCEP的值)

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图 2 呼和浩特、西宁站年和1、7月温度距平时间序列变化图 (单位: ℃)

(实线代表实测值, 虚线代表NCEP的值)

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图 3 广州、上海年和1、7月温度距平时间序列变化图 (单位: ℃)

(实线代表实测值, 虚线代表NCEP的值)

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图 4 全国各分区年平均温度距平时间序列变化图 (单位: ℃)

(实线代表实测值, 虚线代表NCEP的值)

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图 5 青岛、昆明年和1、7月气压距平时间序列变化图 (单位: hPa)

(实线代表实测值, 虚线代表NCEP的值)

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图 6 年平均温度距平空间分布图 (相对于1961～1990年)

(单位: ℃, 左边为NCEP资料, 右边为实际观测资料, 实线为增温, 虚线为降温, 上图为50年代, 下图为80年代, 等值线间隔为0.3 ℃×10)

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图 7 冬季温度距平空间分布图 (相对于 1961～ 1990 年)

(说明同图 6)

DownLoad: Full-Size Img PowerPoint

图 8 夏季温度距平空间分布图 (相对于1961～1990年)

(说明同图 6)

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表 1 全国各分区的代表站

表 2 NCEP资料与实测场的相关和符号一致率

References

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[2]	Kalnay E, Kanamitsu M, Kistler R, et al.The NCEP/NCAR 40 years reanalysis project.Bull Amer.Meteor.Soc, 1996, 77(3): 437~471. doi: 10.1175/1520-0477(1996)077<0437:TNYRP>2.0.CO;2
[3]	NOAA/NMC Development Division.Documentation of the NMC global model.1988, 244.
[4]	Kanamitsu M.Description of the NMC global data assimilation and forecast system.Wea.Forecasting, 1989, 4: 334~342. doi: 10.1175/1520-0434%281989%29004<0335%3ADOTNGD>2.0.CO%3B2
[5]	Kanamitsu M, et al.Recent changes implemented into the global forecast system at NMC.Wea.Forecasting, 1991, 6:425~435. doi: 10.1175/1520-0434(1991)006<0425:RCIITG>2.0.CO;2
[6]	苏志侠, 吕世华, 罗四维.美国NCEP/NCAR全球再分析资料及其初步分析.高原气象, 1999, 18(2): 209~218. http://www.cnki.com.cn/Article/CJFDTOTAL-GYQX902.009.htm