One of my current projects involves the assembly and curation of databases tailored for studying the solar cycle and its long term variability. For this purpose I have created the Solar Dynamo Dataverse as a repository of my own dataproducts (outlined below), as well as selected databases from other scientists. The advantage of a dataverse is that different dataproducts are uniquely identifyed using DOI numbers and have a higher permanence than if they were wosted in personal webpages. Currently the solar dynamo dataverse contains:
- • MWO polar faculae count calibrated to WSO polar fields and SOHO/MDI polar flux (see below).
- • Bipolar magnetic regions determined from NSO synoptic carrington maps (By Anthony R. Yeates).
In collaboration with Neil Sheeley, Jr. at the Naval Research Laboratory, I consolidated polar faculae data taken by the Mount Wilson Observatory (MWO, 1906-2008) and combined it with polar field measurements taken by the Wilcox Solar Observatory (WSO, 1977-2011), and SOHO/MDI (1996-2011), to estimate the evolution of the solar polar field since 1906. As can be seen in the image below, polar faculae can be used as a very effective proxy for the evolution of the polar field