Heatwave effects on gross primary production of northern mid-latitude ecosystems

Gross primary production of global forest ecosystems has been overestimated

Coverage rate, a critical variable for gridded forest area, has been neglected by previous studies in estimating the annual gross primary production (GPP) of global forest ecosystems. In this study, we investigated to what extent the coverage rate could impact forest GPP estimates from 1982 to 2011. Here we show that the traditional calculation without considering the coverage rate globally ove...

Origin of martian northern hemisphere mid-latitude lobate debris aprons

Lobate debris aprons in the martian midto high-latitudes (northern and southern hemispheres) have been interpreted as ice-related features that indicate periglacial climate conditions as recently as late Amazonian. Using MOLA topographic profiles perpendicular to apron flow fronts, we surveyed 36 debris aprons in the northern hemisphere found in the regions of Mareotis, Protonilus, and Deuteron...

Degradation of Mid-latitude Craters on Mars

Stability of Mid - latitude snowpacks on Mars

Synopsis: Mid-latitude snowpacks on Mars have been postulated to exist by Christensen [1], who also suggests that runoff from melting snowpacks on slopes might be responsible for carving gullies, and suggests that such snowpacks may currently exist on the walls of Dao Valles (approx. -33.0 lat.). The snowpacks were presumably formed during the last obliquity cycle, about 74,500 years ago. In th...

Remote sensing of gross primary production

Introduction Conclusions References