Preprints
https://doi.org/10.5194/essd-2020-361
https://doi.org/10.5194/essd-2020-361

  08 Jan 2021

08 Jan 2021

Review status: this preprint is currently under review for the journal ESSD.

1 km Monthly Precipitation and Temperatures Dataset for China from 1952 to 2019 based on a Brand-New and High-Quality Baseline Climatology Surface

Haibo Gong1,2,3,4,5, Xueqiao Xiang1,2,3,4,5, Huiyu Liu1,2,3,4,5, Xiaojuan Xu1,2,3,4,5, Fusheng Jiao1,2,3,4,5, and Zhenshan Lin1,2,3,4,5 Haibo Gong et al.
  • 1Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing Normal University, Nanjing, 210023, China
  • 2Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, 210023, China
  • 3State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing Normal University, Nanjing, 210023, China
  • 4College of Geography Science, Nanjing Normal University, Nanjing 210023, China
  • 5Jiangsu Key Laboratory of Environmental Change and Ecological Construction, Nanjing Normal University, Nanjing 210023, China

Abstract. Long-term climate data and high-quality baseline climatology surface with high resolution are highly essential to multiple fields in climatological, ecological, hydrological, and environmental sciences. Here, we created a brand-new baseline climatology surface (ChinaClim_baseline) and developed a 1 km monthly precipitation and temperatures dataset in China during 1952–2019 (ChinaClim_timeseries). Thin plate spline (TPS) algorithm in each month with different model formulations by accounting for satellite-driven products, was used to generate ChinaClim_baseline and monthly climate anomaly surface. Meanwhile, climatologically aided interpolation (CAI) was used to superimpose monthly anomaly surface with ChinaClim_baseline to generate ChinaClim_timeseries. Our results showed that ChinaClim_baseline exhibited very high performance. For precipitation estimation, the value of all R2 was over 0.860, and the values of RMSEs and MAEs were 8.149 mm~21.959 mm and 2.787~14.125 mm, respectively. Temperature elements had an average R2 of 0.967~0.992, an average MAEs of 0.321~0.785 °C, and an average RMSEs between 0.485 and 1.233 °C for all months. ChinaClim_baseline performed much better than WorldClim2 and CHELSA and there were many spatial discrepancies captured among those surfaces, especially in summer months and the regions with low-density weather stations in temperate continental and high cold Tibetan Plateau. For ChinaClim_timeseries, precipitation had an average R2 of 0.699~0.923, an average RMSE between 7.449 mm and 56.756 mm, and an average of MAE of 4.263~40.271 mm for all months. Temperature elements had an average R2 of 0.936~0.985, an average RMSE between 0.807 °C and 1.766 °C, and an average MAE of 0.548~1.236 °C for all months. Compared with Peng's climate surface and CHELSAcruts, R2 increased by approximately 6 %, RMSE and MAE decreased by approximately 15 % for precipitation; R2 of temperatures had no obviously changes, but RMSE and MAE decreased by 8.37~34.02 %. The results showed that the interannual variations of ChinaClim_timeseries performed much better than other datasets, thanks to the help of ChinaClim_baseline and satellite-driven products. However, ChinaClim_baseline did not significantly improve the accuracy of precipitation estimation, but it greatly improved the accuracy of temperature estimation; the satellite-driven TRMM3B43 anomaly greatly improve the accuracy of precipitation estimation after 1998, while the LST anomaly did not effectively improve the accuracy of temperature estimation. ChinaClim_baseline can be used as an excellent baseline climatology surface for obtaining high-quality and long-term climate datasets from past to future. In the meantime, ChinaClim_timeseries of 1 km spatial resolution based on ChinaClim_baseline, is very suitable for investigating the spatial-temporal climate changes and their impacts on eco-environmental systems in China. Here, ChinaClim_baseline is available at https://doi.org/10.5281/zenodo.4287824 (Gong, 2020a), ChinaClim_timeseries of precipitation is available at https://doi.org/10.5281/zenodo.4288388 (Gong, 2020b), ChinaClim_timeseries of maximum temperature is available at https://doi.org/10.5281/zenodo.4288390 (Gong, 2020c) and ChinaClim_timeseries of minimum temperature is available at https://doi.org/10.5281/zenodo.4288392 (Gong, 2020d).

Haibo Gong et al.

Status: open (until 10 May 2021)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2020-361', Anonymous Referee #1, 07 Feb 2021 reply

Haibo Gong et al.

Data sets

A Brand-New and High-Quality Baseline Climatology Surface for China (ChinaClim_baseline) H. Gong https://doi.org/10.5281/zenodo.4287824

1 km Monthly Precipitation Dataset for China from 1952 to 2019 (ChinaClim_timeseries) H. Gong https://doi.org/10.5281/zenodo.4288388

1 km Monthly Maximum Temperature Dataset for China from 1952 to 2019 (ChinaClim_timeseries) H. Gong https://doi.org/10.5281/zenodo.4288390

1 km Monthly Minimum Temperature Dataset for China from 1952 to 2019 (ChinaClim_timeseries) H. Gong https://doi.org/10.5281/zenodo.4288392

Haibo Gong et al.

Viewed

Total article views: 468 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
371 90 7 468 16 5 11
  • HTML: 371
  • PDF: 90
  • XML: 7
  • Total: 468
  • Supplement: 16
  • BibTeX: 5
  • EndNote: 11
Views and downloads (calculated since 08 Jan 2021)
Cumulative views and downloads (calculated since 08 Jan 2021)

Viewed (geographical distribution)

Total article views: 360 (including HTML, PDF, and XML) Thereof 358 with geography defined and 2 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 11 Apr 2021
Download
Short summary
We created a brand-new baseline climatology surface (ChinaClim_baseline) and developed a 1 km monthly precipitation and temperatures dataset during 1952–2019 (ChinaClim_timeseries). ChinaClim_baseline can be used as an excellent baseline climatology surface for obtaining long-term climate datasets.ChinaClim_timeseries based on ChinaClim_baseline, is suitable for investigating the spatial-temporal climate changes and their impacts on eco-environmental systems in China.