<html><body><div><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body ><div>see below. perhaps of interest for prioritization. </div><div><br></div><div><br></div><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-family: 'times new roman', 'new york', times, serif; ">Send from my phone. Please excuse brevity and typos. </p><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-family: 'times new roman', 'new york', times, serif; "><br></p><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-family: 'times new roman', 'new york', times, serif; ">In F,L&T,<br>Stace Maples <br>Geospatial Manager <br>Stanford Geospatial Center <br>@mapninja <br><a href="mailto:staceymaples@G+" target="_blank">staceymaples@G+</a></p><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-family: 'times new roman', 'new york', times, serif; ">Skype: stacey.maples</p><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-family: 'times new roman', 'new york', times, serif; ">214.641.0920</p><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-family: 'times new roman', 'new york', times, serif; ">Get GeoHelp: <a class="moz-txt-link-freetext" href="https://gis.stanford.edu/" target="_blank">https://gis.stanford.edu/</a></p><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font-family: 'times new roman', 'new york', times, serif; ">"I have a map of the United States... actual size. <br>It says, "Scale: 1 mile = 1 mile." <br>I spent last summer folding it." <br>-Steven Wright-</p><div></div><br><br>-------- Original message --------<br>From: "Roman, Miguel (GSFC-6190)" <miguel.o.roman@nasa.gov> <br>Date:04/30/2015 4:53 AM (GMT-08:00) <br>To: "Azevedo, Meredith" <meredith.azevedo@yale.edu>, Stacey Maples <stacemaples@stanford.edu>, "Turin, Mark" <mark.turin@ubc.ca>, "Shneiderman, Sara" <sara.shneiderman@ubc.ca>, Pablo Suarez <suarezpir@gmail.com>, "Jones, Brenda" <bkjones@usgs.gov>, "Schultz, Lori A. (MSFC-ZP11)[UAH]" <lori.a.schultz@nasa.gov>, eleanor.stokes@yale.edu, "Seto, Karen" <karen.seto@yale.edu>, "Cole, Tony A. (MSFC-ZP11)[UAH]" <tony.a.cole@nasa.gov>, "Molthan, Andrew L. (MSFC-ZP11)" <andrew.molthan@nasa.gov>, "Voiland, Adam P. (GSFC-613.0)[SCIENCE SYSTEMS AND APPLICATIONS INC]" <adam.p.voiland@nasa.gov> <br>Cc: "Habib, Shahid (GSFC-6104)" <shahid.habib-1@nasa.gov>, "Irons, James R. (GSFC-6100)" <james.r.irons@nasa.gov>, "Sellers, Piers J. (GSFC-6000)" <piers.j.sellers@nasa.gov>, "Masuoka, Edward J. (GSFC-6190)" <edward.j.masuoka@nasa.gov>, "Devadiga, Sadashiva (GSFC-619.0)[SCIENCE SYSTEMS AND APPLICATIONS INC]" <sadashiva.devadiga-1@nasa.gov>, "Lynch, Patrick Gerald. (GSFC-606.4)[Wyle Information Systems, LLC]" <patrick.lynch@nasa.gov>, "Allen, Jesse S. (GSFC-613.0)[SCIENCE SYSTEMS AND APPLICATIONS INC]" <jesse.s.allen@nasa.gov>, "Carlowicz, Michael J. (GSFC-613.0)[SCIENCE SYSTEMS AND APPLICATIONS INC]" <michael.j.carlowicz@nasa.gov>, "KITTEL, DREW H. (GSFC-5860)" <drew.h.kittel@nasa.gov> <br>Subject: RE: Urgent: Nepal satellite imagery (Pre-Earthquake VIIRS Sample Files) <br><br></div><br><div><html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
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<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Meredith et al.,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Here’s a google drive link containing the latest Suomi-NPP VIIRS Day/Night Band nighttime composites developed by our NASA/GSFC team.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><a href="https://drive.google.com/folderview?id=0B8mPn1wjvuVOWXBWUV9hc01nRVU&usp=sharing">https://drive.google.com/folderview?id=0B8mPn1wjvuVOWXBWUV9hc01nRVU&usp=sharing</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">A Readme is attached to the folder (also included below). Note there are still a lot of corrections to be made in order to make this a scientifically valid estimate of VIIRS nighttime
lights. Thus, this sample data are to be considered of BETA quality and should be used with care. Having said that, the sooner we can start analyzing, producing, and sharing our results, the better. Comments and feedback are welcomed.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">A few key shout outs and updates:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Mark (UBC): We haven’t forgotten about your district-level plots. We just need a few more days of ‘post-earthquake’ data to build a good enough sample of the region (the cloudy monsoon
period is really hitting us hard).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Brenda (USGS): Feel free to relay this message to HDDS listserv + post these files on HDDS portal:
<a href="http://hddsexplorer.usgs.gov">http://hddsexplorer.usgs.gov</a>. I would encourage **everyone** on this list to register to HDDS and contribute satellite and GIS data in support of this effort.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Lori (NASA SPoRT, cc: Tony and Andrew): Just wanted to plug your recently published VIIRS DNB change detection image of the Kathmandu region:
<a href="http://www.nasa.gov/centers/marshall/news/news/kathmandu-with-lights-out-26april15.html?linkId=13865832">
http://www.nasa.gov/centers/marshall/news/news/kathmandu-with-lights-out-26april15.html?linkId=13865832</a> I cannot state how significant these results are for the Nepal community. Well done!!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Let’s all keep up the good work!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Miguel_<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">-------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Miguel O. Román, Terrestrial Information Systems Laboratory, NASA Goddard Space Flight Center, Code 619 Bld-32 S-036F, Greenbelt MD 20771, USA <a href="mailto:miguel.o.roman@nasa.gov">miguel.o.roman@nasa.gov</a>,
phone +1-301-614-5498, Twitter: <a href="https://twitter.com/NASA_Roman">@NASA_Roman,</a> URL: <a href="http://goo.gl/oRC3rH">http://goo.gl/oRC3rH</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Latest News Releases: <a href="http://uni.vi/3vMBwv">NASA & NOAA Find 2014 Warmest Year in Modern Record (Univisión América)</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><a href="http://thekojonnamdishow.org/shows/2015-01-22/night_watch_washington_from_space">Night Watch: Washington From Space (The Kojo Nnamdi Show, WAMU 88.5 FM NPR)</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">-------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="ES-PR" style="font-family:"Georgia","serif";color:#1F497D">README V 4/30/2015 07:50:10<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="ES-PR" style="font-family:"Georgia","serif";color:#1F497D">Author: Miguel O. Román (NASA/GSFC)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">-------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Description:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Included in this folder are 16 Suomi NPP VIIRS daily nighttime composites for the Nepal Region in GEOTIFF format for the period of 4-10-2015 to 4-25-2015.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">A multidate compositing method, based on Román and Stokes (2015) (see reference below), was adapted to ensure that the correct trajectory of nighttime lights could be retained.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">File Details:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">The naming convention for each file is:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">DNB_DATA.A"yeardoy"."AS"."MX_version"."moon_phase_angle"_"dow".tif."%QA".tif
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Here:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">(1) "yeardoy" is the year follow by the day-of-year<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">(2) "AS" is the NASA Land SIPS archive set (used for testing purposes)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">(3) "MX_version" is the operational IDPS build used (used for testing purposes)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">(4) "moon_phase_angle" = Lunar Phase angle, with 0 = Full moon and 180 = New moon and 90 = half moon. http://the-moon.wikispaces.com/phase+angle<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">(5) "DOW" = the day of week, with 0 = Sunday, 1 = Monday, ... 5 = Friday, and 6 = Saturday.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">(6) "%QA" = is the percent % number of majority high quality retrievals (see band4, below)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Each GEOTIFF file contains four bands. Here's a quick description:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Band 1 = Gridded VIIRS Day/Night Band Nighttime Composites [units of Radiance: W per Sq cm] corrected for clouds, lightning, and thermal emissions.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Note this BETA version has no correction for lunar illumination (BRDF) effects. NO DATA (fill) values = -999.00<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Band 2 = Is the corresponding MODIS 5km monthly NDVI product (used for testing purposes).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Band 3 = Is the overpass time for each pixel (in UTC format). To convert to Nepal Local time, add +8 hours.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Band 4 = Is the mandatory binary quality flag:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">[0 = High-Quality Retrieval extracted during the VIIRS overpass period]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">[1 = Low-Quality Retrieval extracted using our gap-filling algorithm.]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">No-data pixels are also flagged as 1.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Credit:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">When using the data please credit the data generation to the Suomi NPP VIIRS Land Science Investigator-led Processing System (VIIRS Land SIPS), NASA Goddard Space Flight Center.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">Reference: Román, M.O., & Stokes, E.C. (2015). Holidays in lights: tracking cultural patterns in demand for energy services. Earth's Future Journal [Under Review]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">For questions contact miguel.o.roman (at) nasa.gov or eleanor.stokes (at) yale.edu<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D">-------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Georgia","serif";color:#1F497D"><o:p> </o:p></span></p>
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