Results 61 to 70 of about 38,018 (154)

Natural Forest Clearings Enable the Persistence of Stable Spotted Hyena Populations in Congo Basin Rainforests

open access: yesBiotropica, Volume 57, Issue 5, September 2025.
Spotted hyenas (Crocuta crocuta) are known to range across broad savanna regions of sub‐Saharan Africa, but there is very limited understanding of how and to what extent they use lowland rainforest habitats. We use camera trap data and GPS telemetry to show that bais, natural rainforest clearings, can support hyenas living exclusively in the rainforest—
Ella M. Bradford   +7 more
wiley   +1 more source

Télédétection en milieux sahéliens

open access: yes, 1992
[Notes_IRSTEA]bibl., ph., car. [Departement_IRSTEA]GTNon-exhaustive presentation on the use of remote sensing for Sahelian environments showing some examples of the wealth of satellite information on these territories.Exposé non exhaustif sur l ...
Puech, C.
core   +1 more source

A New Prognostic Parameterization of Subgrid Ice Supersaturation and Cirrus Clouds in the ICOLMDZ AGCM

open access: yesJournal of Advances in Modeling Earth Systems, Volume 17, Issue 8, August 2025.
Abstract A new cirrus cloud parameterization for the ICOLMDZ atmospheric general circulation model (AGCM) is presented. Prognostic equations for cloud fraction, ice water content and cloudy water vapor are introduced, and the processes that affect these quantities are parameterized.
Audran Borella   +4 more
wiley   +1 more source

Précis de télédétection [PDF]

open access: yes
Ce précis est le troisième volume de la série en télédétection. Le premier traite des Principes et Méthodes alors que le deuxième, ouvrage collectif, présente les Applications thématiques de la télédétection.
Caloz, Régis, Collet, Claude
core  

Benefits of GNSS Local Observations Compared to Global Weather‐Based Models for InSAR Tropospheric Corrections Over Tropical Volcanoes: Case Studies of Piton De La Fournaise and Merapi

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract From repeat‐pass interferometry, tropospheric signals often prevent the detection of ground deformation signals. In recent years, tropospheric corrections derived from global weather‐based models have been implemented in several InSAR processing chains.
F. Albino   +7 more
wiley   +1 more source

Un modèle numérique de terrain issu d'un logiciel de télédétection

open access: yes, 1991
Il est possible de créer un modèle numérique de terrain en utilisant les fonctions graphiques d’un logiciel de traitement d’images de télédétection. Un plan d’image est créé par numérisation des principales courbes de niveaux et affectation de couleurs ...
Valery GOND, Frank VIDAL
core  

Evidence for Erosional Efficiency of Extreme Precipitation Events at a Multi‐ Decadal Time Scale

open access: yesJournal of Geophysical Research: Earth Surface, Volume 130, Issue 3, March 2025.
Abstract Extreme precipitation events play a pivotal role in shaping Earth's surface through their influences on hillslope processes (triggering mass‐wasting events) and on transport capacity and dynamics of rivers. This study investigates the impact of such events on sediment transport using Réunion Island as a natural laboratory due to its intense ...
Eric Gayer   +3 more
wiley   +1 more source

Aperçu des méthodes de la télédétection phytosanitaire

open access: yes, 1972
Aperçu des méthodes de la télédétection ...
Riom, J.
core  

Towards a global understanding of tree mortality

open access: yesNew Phytologist, Volume 245, Issue 6, Page 2377-2392, March 2025.
Summary Rates of tree mortality are increasing globally, with implications for forests and climate. Yet, how and why these trends vary globally remain unknown. Developing a comprehensive assessment of global tree mortality will require systematically integrating data from ground‐based long‐term forest monitoring with large‐scale remote sensing.
International Tree Mortality Network   +114 more
wiley   +1 more source

Approches multi-hiérarchiques pour l'analyse d'images de télédétection

open access: yes, 2014
National audienceAu cours de la dernière décennie, la télédétection par imagerie satellitaire a connu plusieurs révolutions, liées d’une part à l’augmentation spectaculaire du nombre de dispositifs d’acquisition, et d’autre part aux progrès des capteurs ...
Kurtz, Camille   +3 more
core   +1 more source

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