Results 171 to 180 of about 548,283 (312)

Detecting and attributing climate change effects on vegetation: Australia as a test case

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Climate change is contributing to vegetation changes that threaten life support systems. Yet, inherent climatic variability and past and present human actions—such as clearing, burning and grazing regimes—also alter vegetation and complicate understanding of vegetation change. Australian ecosystems exemplify such complexity.
Laura J. Williams   +14 more
wiley   +1 more source

Seasonal Snow Extent and Snow Mass in South America using SMMR and SSM/I Passive Microwave Data (1979-2006) [PDF]

open access: yes
Seasonal snow cover in South America was examined in this study using passive microwave satellite data from the Scanning Multichannel Microwave Radiometer (SMMR) on board the Nimbus-7 satellite and the Special Sensor Microwave Imagers (SSM/I) onboard ...
Chiu, L.   +3 more
core   +1 more source

Landless peasants, soilless cultivation: British agricultural experimentation and intervention in post‐independence Iraq (1932–1958)

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
‘Greening’ is often depicted as an inherently benevolent practice, turning arid stretches of land into arable and fertile plots. However, by considering a longer history of place and taking archival records into account, such transformations are rendered more complex and, often, more fraught.
Zsuzsanna Ihar
wiley   +1 more source

Remote sensing of global snowpack energy and mass balance: In-situ measurements on the snow of interior and Arctic Alaska [PDF]

open access: yes
Observations led to a study of the physical properties of snow and the processes which operate on it. These observations included microwave brightness temperatures in interior Alaska which revealed: (1) up to three times more variability from one cell (1/
Benson, Carl S.
core   +1 more source

Protected and productive: How greenhouses should deliver UK food security

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The United Kingdom produces less than 20% of its fruit and ~50% of its vegetables, leaving it highly import dependent and vulnerable to supply chain disruptions. Our study maps 2085 ha of existing greenhouses, over 70% more than 40 years old, and identifies where modern infrastructure could expand production.
Sven Batke   +3 more
wiley   +1 more source

Satellites: New global observing techniques for ice and snow [PDF]

open access: yes
The relation of aereal extent of snow cover to the average monthly runoff in a given watershed was investigated by comparing runoff records with a series of snowcover maps.
Gloersen, P., Salomonson, V. V.
core   +1 more source

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