Results 31 to 40 of about 4,026 (269)

XBT Effects on the Global Ocean State Estimates Using a Coupled Data Assimilation System

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2016
The early 21st century experienced a transition in global ocean observing systems from the expendable bathythermograph (XBT) to the Argo. There has been a decrease in XBT observations, and a significant increase in Argo profiling floats in the global ...
You-Soon Chang Shaoqing Zhang
doaj   +1 more source

Phanerozoic Large Igneous Province, Petroleum System, and Source Rock Links

open access: yesGeophysical Monograph Series, Page 191-228., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Steven C. Bergman   +2 more
wiley  

+1 more source

Vertically Resolved Global Ocean Light Models Using Machine Learning

open access: yesRemote Sensing, 2023
The vertical distribution of light and its spectral composition are critical factors influencing numerous physical, chemical, and biological processes within the oceanic water column.
Pannimpullath Remanan Renosh   +3 more
doaj   +1 more source

Deep Chandra Observations of the Compact Starburst Galaxy Henize 2-10: X-rays from the Massive Black Hole [PDF]

open access: yes, 2016
We present follow-up X-ray observations of the candidate massive black hole (BH) in the nucleus of the low-mass, compact starburst galaxy Henize 2-10. Using new high-resolution observations from the Chandra X-ray Observatory totaling 200 ks in duration ...
Greene, Jenny   +6 more
core   +3 more sources

Wide-field global VLBI and MERLIN combined monitoring of supernova remnants in M82

open access: yes, 2010
From a combination of MERLIN (Multi-Element Radio-Linked Interferometer Network) and global VLBI (Very Long Baseline Interferometry) observations of the starburst galaxy M82, images of 36 discrete sources at resolutions ranging from ~3 to ~80 mas at 1.7 ...
A. Pedlar   +54 more
core   +1 more source

Resolution of the Compact Radio Continuum Sources in Arp220 [PDF]

open access: yes, 2011
We present 2 cm and 3.6 cm wavelength very long baseline interferometry images of the compact radio continuum sources in the nearby ultra-luminous infrared galaxy Arp220.
Batejat, Fabien   +6 more
core   +2 more sources

Combining BioGeoChemical-Argo (BGC-Argo) floats and satellite observations for water column estimations of the particulate backscattering coefficient [PDF]

open access: yesOcean Science
As the second-largest carbon reservoir on Earth, the ocean regulates the carbon balance through dissolved and particulate organic carbon (POC) forms. Monitoring carbon cycle processes is key to understanding the climate system.
J. García-Jiménez   +3 more
doaj   +1 more source

Deep MERLIN 5GHz Radio Imaging of Supernova Remnants in the M82 Starburst

open access: yes, 2008
The results of an extremely deep, 8-day long observation of the central kpc of the nearby starburst galaxy M82 using MERLIN (Multi-Element Radio Linked Interferometer Network) at 5 GHz are presented.
Argo, M. K.   +4 more
core   +1 more source

Artificial Intelligence in Autonomous Mobile Robot Navigation: From Classical Approaches to Intelligent Adaptation

open access: yesAdvanced Intelligent Systems, EarlyView.
Artificial intelligence (AI) is reshaping autonomous mobile robot navigation beyond classical pipelines. This review analyzes how AI techniques are integrated into core navigation tasks, including path planning and control, localization and mapping, perception, and context‐aware decision‐making. Learning‐based, probabilistic, and soft‐computing methods
Giovanna Guaragnella   +5 more
wiley   +1 more source

15 years of VLBI observations of two compact radio sources in Messier 82

open access: yes, 2006
We present the results of a second epoch of 18cm global Very Long-Baseline Interferometry (VLBI) observations, taken on 23 February 2001, of the central kiloparsec of the nearby starburst galaxy Messier 82.
Argo, M. K.   +8 more
core   +2 more sources

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