Tag Archives: Paper

Global forecasts of urban expansion to 2030

A new PNAS paper projects location, magnitudes, and rates of urban expansion to 2030. The supplementary information indicates the familiar Global Rural-Urban Mapping Project (GRUMP) dataset, of which IFPRI and CIAT participated the development, was used as the baseline data to create population density driver and to project for the future.

For us, working on the agricultural research, probably the rural extent is more relevant. Would the simple computation of [total pop – urban pop = rural pop] be legit, hopefully?

Global forecasts of urban expansion to 2030 and direct impacts on biodiversity and carbon poolsAbstract Urban land-cover change threatens biodiversity and affects ecosystem productivity through loss of habitat, biomass, and carbon storage. However, despite projections that world urban populations will increase to nearly 5 billion by 2030, little is known about future locations, magnitudes, and rates of urban expansion.

Embedly Powered

via Pnas
Download full paper at PNAS (Open Access) Request to download GIS data (Esri GRID format)

Reference

Generating downscaled weather data using MarkSimGCM

MarkSimGCM

MarkSimGCM

 

A new paper describes the methodology used by CCAFS’ MarkSimGCM to downscale the outputs of a General Circulation Model and generate daily weather for the future climate .

ScienceDirect.com – Agricultural Systems – Generating downscaled weather data from a suite of climate models for agricultural modelling applications► Most climate model outputs need manipulation before they can be used by agricultural modellers. ► We describe a tool to generate daily data that are somewhat characteristic of future climates. ► The method uses an amalgamation of empirical downscaling, climate typing and weather generation.

Embedly Powered

Reference