Due to the coronavirus disease (COVID-19) pandemic, all staff at Columbia University’s Center for International Earth Science Information Network (CIESIN) are working remotely until further notice. All of our websites and online services remain fully operational. CIESIN and NASA's Socioeconomic Data and Applications Center (SEDAC) User Services staff are working regular hours, Monday through Friday, 9 a.m.–5 p.m. U.S. Eastern Daylight Time, except on major U.S. holidays.
For the quickest response to questions, problems, or requests for assistance, please contact us via the SEDAC Help Desk at https://sedac.ciesin.columbia.edu/help or send an email to ciesin.info@ciesin.columbia.edu. Please note that access to Columbia University′s campuses is restricted to essential personnel, and that domestic and international travel for business purposes is currently prohibited.