<div dir="ltr"><div>The Boston College Institute for Scientific Research (BC/ISR), in collaboration with MIT Haystack Observatory, is pleased to announce that selected data products from the Defense Meteorological Satellite Program (DMSP) are now available on the CEDAR Madrigal database. Available data products include both numeric values and predefined summary plots.</div><div><br></div><div>The availability of this valuable data comes after a long gap in service that was precipitated by U.S. Air Force funding and contract issues. The reintroduction of this data for use by the scientific community is made possible by the dedicated funding support of the U.S. National Science Foundation (NSF)'s Geospace Section, in particular John Meriwether and Therese Moretto Jorgensen, under a supplement to NSF grant AGS-1242204 to MIT Haystack Observatory. </div><div><br></div><div>We thank all of you for your continued interest in this valuable data set, and we will do our best to maintain its availability. To ensure the service continues and to define the way forward, BC/ISR and MIT Haystack Observatory are planning a 2 day DMSP focused workshop in October 2016 at Boston College. Final dates will be defined soon. If you are interested in this workshop, please email Patricia Doherty (<a href="mailto:Patricia.Doherty@bc.edu">Patricia.Doherty@bc.edu</a>) and Phil Erickson (<a href="mailto:pje@haystack.mit.edu">pje@haystack.mit.edu</a>) so we can gauge meeting interest and size.</div><div><br></div><div>Technical details on data access and availability:</div><div><br></div><div>Presently the date range is the present back until 2010 (with small gaps), but the dataset will soon include all data back to 1982. New data will be available approximately 5 days behind real time. The data is provided at a level equivalent to NASA mission Level 1, with no applied data quality algorithms. Numeric results and summary plots are available from the J4/J5 electron and ion particle spectrometers, electron density and O+ density, ion drift meters, and magnetometers.</div><div><br></div><div>To access data, go to the CEDAR Madrigal website at <a href="http://cedar.openmadrigal.org">http://cedar.openmadrigal.org</a>. No login is required, but new users will be required to enter their names, emails and affliations into a form that stores that information in a cookie. One approach to accessing this dataset is to choose Simple Local Data Access, then choose Satellite Instruments as the instrument type, and then choose Defense Meteorological Satellite as the instrument. Then follow the prompts to chose the particular day of interest. You can download the data as ascii or hdf5, or see the plots by selecting Show Plots. Another approach allows you download data from a range of dates using a script you install on your own computer. To do this, go to Full Data Access, then Global Madrigal Search, and follow the instructions.</div><div><br></div><div>The data files each cover a single UT day, and a single DMSP satellite. For each day and satellite, there are typically three Madrigal files: one for the one-second cadence energy spectra measurements, one for the one-second cadence scalar measurements, and one for the four-second cadence scalar measurements. So a typical UT day might have 12 separate data files.</div><div><br></div><div>Acknowledgements and Contacts: </div><div><br></div><div>This work is a joint project of the Boston College Institute for Scientific Research and MIT Haystack Observatory. Special thanks go to Kevin Martin at Boston College for his extraordinary efforts to make this data available in a consistent and timely manner. Please contact Bill Rideout (<a href="mailto:brideout@haystack.mit.edu">brideout@haystack.mit.edu</a>), Phil Erickson (<a href="mailto:pje@haystack.mit.edu">pje@haystack.mit.edu</a>) or Patricia Doherty (<a href="mailto:Patricia.Doherty@bc.edu">Patricia.Doherty@bc.edu</a>) with any questions or issues.</div><div><br></div><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal">----</span><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal">Philip Erickson, Ph.D.</span><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal">Atmospheric Sciences Group</span><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal">MIT Haystack Observatory</span><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal">Westford, MA 01886 USA</span><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal"><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal">email: </span><a href="mailto:pje@haystack.mit.edu" style="font-family:Helvetica;font-size:12px;line-height:normal" target="_blank">pje@haystack.mit.edu</a><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal">WWW: </span><a href="http://www.haystack.mit.edu/" style="font-family:Helvetica;font-size:12px;line-height:normal" target="_blank">http://www.haystack.mit.edu</a><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal">voice: +1 781 981 5769</span><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal">fax: +1 781 981 5766</span><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal"><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal"><span style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal">Public key: </span><a href="http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x54878872" style="font-family:Helvetica;font-size:12px;line-height:normal" target="_blank">http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x54878872</a><br style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;line-height:normal"></div></div></div>
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