Updated asparagus root carbohydrate monitoring system – Aspire Lite phone app

Presentation to the New Zealand Asparagus Council conference at Napier. Sarah Sinton presented. Aspire Asparagus Lite is free and open source Android phone app to assist in the management of carbohydrate reserves of asparagus crops. The App is available from the Google Play Store

A Research Agenda for Geospatial Technologies and Learning

Knowledge around geospatial technologies and learning remains sparse, inconsistent, and overly anecdotal. Studies are needed that are better structured; more systematic and replicable; attentive to progress and findings in the cognate fields of science, technology, engineering, and math education; and coordinated for multidisciplinary approaches. A proposed agenda is designed to frame the next generation of research in this field, organized around four foci: (1) connections between GST and geospatial thinking; (2) learning GST; (3) curriculum and student learning through GST; and (4) educators’ professional development with GST. Recommendations for advancing this agenda are included

Comparisons of Gravity Anomalies at Pseudofaults, Fracture Zones, and Nontransform Discontinuities from Fast to Slow Spreading Areas

Published mechanisms for rift tip propagation at spreading centers include extensional deformation and an initial period of slow spreading. We investigate whether the gravity signal and inferred crustal structure at pseudofaults formed in medium to superfast spreading environments resemble the gravity signal at fracture zones or nontransform discontinuities formed in slow spreading environments. We find that altimetry-based gravity anomalies on the Mathematician, Bauer, Easter, Juan Fernandez, and northern Chile Ridge pseudofaults, located in 75–150 mm/yr (full rate) seafloor spreading environments, are similar in amplitude and form to Atlantic fracture zones with 20–30 mm/yr spreading rates. A 5–15 mGal positive mantle Bouguer anomaly is observed on the pseudofault bounding the eastern Juan Fernandez microplate, comparable to those at some similar age-offset nontransform discontinuities in slow spreading environments. Our results suggest that the deeps associated with active propagating rift tips result from both a dynamic mantle component and anomalous crust, the latter of which remains frozen at pseudofaults. We predict that any pseudofaults with age offsets more than ∼1 m.y. and not coincident with hotspot volcanism will be associated with thin (and possibly unusually dense) crust, even in superfast seafloor spreading environments