Greg Yetman

I did an interview at work: blogs.ei.columbia.edu/2019/04/10/too…

NEW DATA: We've published 2 important datasets on travel networks in DRC! The first dataset maps road and path locations, while the second helps to calculate travel times for walking and/or motorized travel on those paths and roads. Datasets here: grid3.org/drc

🚀New research in @ijgis - innovative method converts fractional population estimates into accurate integers, preserving totals, spatial detail & demographic consistency. 🌍#GeoData #PopulationStats 🔗🔊Report and audio summary: worldpop.org/blog/new-metho…

Places In Canada With Winters Above Freezing brilliantmaps.com/warm-canadian-…

Declining response rates to censuses and surveys is an issue for official data, this article summarizes a new paper on the issue. #census #data news.climate.columbia.edu/2025/06/19/mor…

🚗Commuting zones represent areas where we spend most of our time based on where we live & work. 🛣️Our newest dashboard developed w/ @Meta's Data for Good explores how road coverage compares to population in commuting zones worldwide. Explore it here 👉 bit.ly/40AIPtg

Looking forward to Geography 2050 this week! americangeo.regfox.com/geography-2050…

Empowering Development: Comprehensive Data from GRID3 Highlights Sub-Saharan Settlements and Health Infrastructure in the DRC | CIESIN Columbia University ciesin.climate.columbia.edu/news/empowerin…

AmeriGEO's recent water resources workshop in Ecuador taught attendees how to work with data from #NASASEDAC and other sources to identify areas at risk of flooding. The event was noteworthy not only for what attendees learned, but how. Learn more: go.nasa.gov/40ar3i0

New job posting @ciesin, come join our IT team as a systems administrator! opportunities.columbia.edu/jobs/systems-a…

New dataset release! Detailed settlement extents for 46 sub-Saharan Africa countries. Open license. #OpenData #settlements data.grid3.org/search?categor…

@servir_wa Great discussions today @servir_wa Annual Planning meeting on industrialization and graduation of services #ConnectingSpacetoVillage with adapted solutions & real-time information to end-users @SERVIRGlobal @USAIDWestAfrica @ICRISAT

🎉 Exciting News! @AmericanGeo and the Trimble Foundation are teaming up to offer #APHG teachers from underrepresented communities scholarships to attend @geography2050! Don’t miss this chance—apply now! 🌍✨ tinyurl.com/AGS-Trimble #TeacherFellows #Geography2050

Come work @ciesin! GIS programmer position, help make new open data products, design analysis processes, and more! Apply via CU. #gisjobs #gischat academic.careers.columbia.edu/#!/144879

@CIESIN is looking for a GIS programmer! Work on spatial modeling and developing open data products for humanitarian and other applications. Apply through the CU site at the link below. #gisjobs #gischat academic.careers.columbia.edu/#!/144879

New open urban data set from @ciesin / #SEDAC: Global Urban Polygons and Points Dataset (GUPPD). Surprisingly few global datasets on urban extents with names, here's a new one! sedac.ciesin.columbia.edu/data/set/urban…

DATA UPDATE: With partner @CIESIN we just published V3.1 of the national #DRC Settlement Extents dataset. Added value: 📈Increased input sources: V3.1 uses 11 🗓️Input sources are more recent 🔓 100% Open data 👉bit.ly/4dnSdW3

Headed to @theAGU meeting this year? I'm co-organizing a session on Gridded Population Modeling Using Remotely Sensed Data for at Risk Populations, please consider submitting an abstract! #agu2024 #population #remotesensing agu.confex.com/agu/agu24/prel…

‼️ We are thrilled to announce that the GIScience 2025 conference will be held at the University of Canterbury in Christchurch, New Zealand, August 26-29, 2025 🇳🇿 giscience2025.org #giscience #gischat #giscience2025 @UCNZ

CIESIN @columbiaclimate is hiring a deputy director. Great opportunity for those with skills in spatial data/science, decision support; and interests in environmental justice, population dynamics, climate, disasters, remote sensing and more. See: academic.careers.columbia.edu/#!/140812

Excited to be part of @GIScience_conf. Hope to see you! @PennStateGIS @psugeography @ciesin @Tuholske @openmapping_ap @WiGIS_UG @youthmappers @UNSDSN @codata @PrinzEugn @gyetman @peter_pelias @Alex_deS @mjbiancagc @brycegc @mschneiderstats @Colleen__Neely @Researching_GW