Collecting volunteered geographic information from the GNSS
Linda See, Benedikt Soja, Grzegorz Klopotek, Tobias Sturn, Rudi Weinacker, Santosh Karanam, Ivelina Georgieva, Yuanxin Pan, Laura Crocetti, Markus Rothacher, Vicente Navarro, Steffen Fritz and Ian McCallum
We demonstrated the potential of the data in terms of filling spatial gaps and increasing the density of observations relative to permanent geodetic GNSS networks. We also showed that there has been a relatively substantial contribution from mobile phones with dual frequency capabilities, which are still an emerging technology. We then presented results from a questionnaire showing the diversity of participation and the drivers motivating the data collection..... [more]

A review of land information management systems
Ifeanyichukwu Valentine Nwafor, Raphael Oshiobugie Sado and Inipami Prince Johnnie
The need for land information computerization and land titling procedure automation is more crucial now than ever before. A functional land information management system should not only ensure that all data relating to land are consistent, correct and up-to-date but should also avail different users their required information without necessarily engaging in generation of new datasets... [more]