HRD Data Policy Unless otherwise stated data are the property of the US Department of Commerce and may not have been processed for quality assurance. Many Type 1 (raw) and Type 2 (quick look) are freely available on the HRD website. Some Type 3 (original data) is only available on request. We ask that a proper acknowledgement to the "NOAA Hurricane Research Division of AOML" accompany the use of these data in any publications or presentations. If Type 2 or 3 data are used in a scientific paper, please cite the relevant publication(s) of the HRD staff scientists who developed the methods for generating or processing the data. If use of Type 2 or 3 data in a publication constitutes a major or fairly significant aspect of an article, co-authorship by an HRD scientist is appropriate; please discuss any such planned use with the associated contact scientist listed in the metadata or information sections for the particular data type. Please check the HRD Staff and Publication pages for additional citations that may help your research. We welcome collaborations and will lend our expertise in interpretation and evaluation of the data.