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Global Estimated Net Migration Grids by Decade
The Global Estimated Net Migration Grids by Decade: 1970-2000
Produced for the United Kingdom Foresight project on Migration and Global Environmental Change, the Net Migration Grids by Decade data set provides estimates of net migration over the three decades from 1970 to 2000. Because of the lack of globally consistent data on migration, indirect estimation methods were used. The authors relied on a combination of data on spatial population distribution for four time slices (1970, 1980, 1990, and 2000) and subnational rates of natural increase in order to derive estimates of net migration on a 30 arc-second (~1km) grid cell basis. Net migration was estimated by subtracting the population in time period 2 from the population in time period 1, and then subtracting the natural increase (births minus deaths). The residual was considered to be net migration (in-migrants minus out-migrants). The authors ran 13 geospatial net migration estimation models based on outputs from the same number of imputation runs for urban and rural rates of natural increase. This data set represents the average of those runs. These data are reliable at broad scales of analysis (e.g. ecosystems or regions), but are generally not reliable for local level analyses.
http://sedac.ciesin.columbia.edu/data/set/popdynamics-global-est-net-migration-grids-1970-2000
Upcoming DataONE Webinar
We are pleased to open registration for the October DataONE Webinar Series event (
www.dataone.org/webinars).
The Open Science Framework: Increasing Reproducibility Across the Entire Research Lifecycle
Dr. Courtney Soderbery, Center for Open Science.
Tuesday October 13th at 9:00am Pacific / 12:00 noon Eastern.
The webinar abstract is available below. There is no cost to registration however you must pre-register at:
www.dataone.org/upcoming-webinar.
We welcome you to join us for this and future webinars in the series. Webinars are held on the 2ndTuesday of each month at 12 noon Eastern Time. They will be recorded and made available for viewing latter the same day. A Q&A forum will also be available to attendees and later viewers alike.
More information on the DataONE Webinar Series can be found at:
www.dataone.org/webinars and we welcome suggestions for speakers and topics.
Vacancy Announcement: Coastal Community Resilience
Alaska Sea Grant is recruiting applicants for a coastal community resilience and adaptation specialist. The research assistant professor position is open to candidates with a master’s degree or higher in a broad range of sciences or community planning, with experience in a field such as coastal hazards, coastal engineering, community planning, and rural development.
The search committee is looking for a new faculty member who will integrate into the current Alaska SeaGrant Marine Advisory Program, bringing knowledge and skills in areas such as community hazard mitigation, economic resilience, and climate change adaptation planning.
The position is funded by Alaska Sea Grant, Alaska Center for Climate Assessment, Alaska Ocean Observing System, and NOAA.
The new specialist will be based at the Alaska Sea Grant Marine Advisory Program office in Anchorage. A more detailed description and instructions on how to apply available here:
http://www.uakjobs.com/applicants/Central?quickFind=88186.
