Add CITATION.md

CHANGELOG.md

@@ -9,6 +9,7 @@
 ### Fixes
 ### Internal Changes
 * update IPFS version in CI to 0.23.0 to improve access times and make weekly_test more reliable (#149). By [Hauke Schulz](https://github.com/observingClouds)
+* add citation recommendations (#155). By [Hauke Schulz](https://github.com/observingClouds)
 
 ## 1.0.0
 

CITATION.md

@@ -0,0 +1,28 @@
+# Citing
+
+Please cite the catalog as following when refering to a specific version of the catalog, e.g., in the data availability section:
+
+```bibtex
+@dataset{eurec4a_community_2023,
+  title = {{{EUREC4A}}},
+  author = {{community}, EUREC4A},
+  date = {2023-10},
+  publisher = {{Zenodo}},
+  doi = {10.5281/zenodo.8422322},
+  version = {v1.0.0}
+}
+```
+
+In case the catalog is cited within the main body of the manuscript, please reference the general version of catalog available at https://zenodo.org/doi/10.5281/zenodo.8422321
+
+> [!IMPORTANT]
+> The catalog only links to datasets and has no influence or control on the data itself.
+To improve the reproducability and to give credit to the authors of the underlying datasets,
+it is recommended to cite each dataset individually in addition to the catalog itself.
+
+## Example citation for data availability section
+
+> The EUREC4A data used in this study is freely available and can be easily accessed via the EUREC4A-Intake catalog at
+https://github.com/eurec4a/eurec4a-intake as described at howto.eurec4a.eu. The specific data sets used from
+the catalog v1.0.0 (EUREC4A community, 2023) include the JOANNE dropsonde data set (George, 2021),
+the EUREC4A radiosonde data set (Stephan et al., 2020),...