Purple Mountain Observatory

Purple Mountain Observatory

Purple Mountain Observatory, also known as Zijinshan Astronomical Observatory, is a dual-use astronomical observatory operated by the Chinese Academy of Sciences, located at Purple Mountain east of Nanjing. Derived from Wikipedia licensed CC-BY-SA.

Open Access statistics for Purple Mountain Observatory, China, covering academic research published from 2000 to 2024. Read More.


Open Access Percentage

69%


Total
Publications

4.7K


Total Open
Publications

3.3K


Total
Citations

125K


Open Access
Percentage

69%


Total
Publications

4.7K


Total Open
Publications

3.3K


Total
Citations

125K

Wikipedia

Website

download

Breakdown

22% 38% 9% 31%

Publisher Open

22%

Both

38%

Other Platform Open

9%

Closed

31%

Percentage of Open Access over time

0%10%20%30%40%50%60%70%80%90%100%
2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Publisher Open

Both

Other Platform Open

Closed

Volume of Open Access over time

050100150200250300350400Total Publications
2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Open

Closed

Publisher Open

71%OA Journal

OA Journal 71%

2K

Hybrid 9%

252

No Guarantees 20%

572

Other Platform Open

Preprint 88%

2K

Institution 27%

602

Other Internet 2%

45

Domain 2%

40

Public 0%

10

Other Platform Locations

Name

Platform Type

Publications

arXiv
Preprint
2K
Le Centre pour la Communication Scientifique Directe - HAL - Diderot
Institution
181
Royal Netherlands Academy of Arts and Sciences
Institution
116
Office of Scientific and Technical Information
Institution
107
PubMed Central
Domain
40
DOI
Other Internet
36
sissa.it OAI-PMH Repository
Institution
34
California Institute of Technology
Institution
28
Chiba Institute of Technology
Institution
26
University of Milan
Institution
25
1 / 12

Data updated 18 August 2025

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