Short communication: Updated CRN Denudation datasets in OCTOPUS v2.3

Abstract. OCTOPUS v2.3 includes updated CRN Denudation datasets, adding 1,311 new river basins to the CRN International and CRN Australia collections. The updates bring the total number of basins with recalculated ¹⁰Be denudation rates to 5,611, and those with recalculated ²⁶Al rates to 561. To improve data relevance and usability, redundant data fields have been removed, retaining only those relevant to each collection. Additional updates include the introduction of several new data fields: the latitude of the basin centroid and the effective basin-averaged atmospheric pressure, both of which improve interoperability with online erosion rate calculators. Other new fields record the extent of present-day glaciers and their potential impact on denudation rates, as well as estimates of the percentage of quartz-bearing lithologies in each basin — providing a basis for evaluating data quality. The updated data collections can be accessed at https://octopusdata.org (last access: 01 Dec 2024). The CRN International and CRN Australia data collections can also be accessed via their respective digital object identifiers (DOIs).