At its November 2021 meeting, the ITU-R Study Group 4 considered and agreed on a package of three ITU-R Recommendations on radionavigation-satellite service (RNSS) systems as listed below.

Draft revision of Recommendation ITU-R M.1787-3 – Description of systems and networks in the radionavigation-satellite service (spaceto- Earth and space-to-space) and technical characteristics of transmitting space stations operating …

Spatial relations are explicitly modelled using spatial weighting matrices which can be applied to the dependent, independent or error terms in regressions

Eduardo Zegarra

Group for the Analysis of Development (GRADE), Lima, Perú

Abstract
The potential existence of spatial dependencies in land use and irrigation access in mountainous areas like the Peruvian Andes is a relevant issue for designing …

Cyclone ‘Tauktae’ hit the Gujarat coast, India on May 17, 2021, which affected the Gir National Park, a wildlife sanctuary for Asiatic lions. In order to do a quick assessment of the affected area, a suite of optical and microwave satellite datasets were analysed for pre and post cyclone periods

Dr C P Singh

Scientist/Engineer- SF Biological …

This paper highlights amusing research related to the animal kingdom, improving our understanding of animal behaviour, ecology and conservation, often by employing spatial tools and innovative approaches to data collection and analysis.

Volker Janssen

Publications Officer, Association of Public Authority Surveyors (APAS), New South Wales, Australia

This is the fourth in a series of papers celebrating some of …

Drones-as-a-service provider Delta Drone International is pleased to confirm it has formally completed the acquisition of 60% of the shares in Perth-based provider of aerial and terrestrial surveying services, Arvista Pty Ltd (Arvista) as announced on 16 August 2021 (the Acquisition), with Arvista to commence trading as a DLT subsidiary on 1 September 2021.

The merger is a key milestone in …