Results 31 to 40 of about 248,444 (168)

Upwelling, a common phenomenon in the northern coast of the Rio de la Plata? [PDF]

open access: yes, 2013
En este trabajo se estudiaron las escalas de variabilidad de la temperatura superficial del mar (TSM) en el Río de la Plata y los procesos físicos que las producen.
Campetella, Claudia Marcela   +4 more
core  

Ocean acidification at the crossroads I: Harmonizing unpurified and purified meta‐cresol purple spectrophotometric pHT measurements based on absorbance data

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 4, April 2026.
Abstract Consistent monitoring of seawater spectrophotometric pH on the total hydrogen ion scale (pHT) has been questioned by an evolving method, with changes in parameterization and the purity of the meta‐cresol purple (mCP). Using real seawater samples, we demonstrate that spectrophotometric pHT measurements obtained with unpurified (UNPUR) and ...
Marta Álvarez   +6 more
wiley   +1 more source

Classification of European Illex coindetii and Loligo forbesii Squid Stocks by Trace Element Analysis of Statoliths

open access: yesFisheries Management and Ecology, Volume 33, Issue 2, Page 181-200, April 2026.
ABSTRACT We investigated whether statolith microchemistry analysis could classify ommastrephid and loliginid squid species into fishery stocks. Statolith nucleus (early life stage) and edge (life stage at time before catch) of Illex coindetii (Verany, 1839) and Loligo forbesii (Steenstrup, 1856) from various areas of the North East Atlantic Ocean and ...
Bianca T. C. Bobowski   +10 more
wiley   +1 more source

Unveiling Patterns in Cetacean Strandings Along Southern Atlantic Iberia: Temporal and Spatial Trends, Seasonality, and Causes of Death

open access: yesMarine Mammal Science, Volume 42, Issue 2, April 2026.
ABSTRACT We compiled 46 years of cetacean strandings in the Algarve, Portugal, describing temporal–spatial patterns, size–sex structure, and causes of death (COD). We analyzed national records and years with a dedicated regional stranding network (SN) to assess annual/seasonal trends, spatial hotspots, and compare biometrics and COD.
Jan Hofman   +7 more
wiley   +1 more source

Envejecimiento del aluminio anodizado insuficientemente sellado

open access: yesRevista de Metalurgia, 1996
En este trabajo se estudiaron los diferentes grados de sellado de recubrimientos anódicos de aluminio obtenidos por inmersión en agua desionizada y en disoluciones de acetato y trietanolamina a 50 °C (temperatura muy inferior a la empleada en el sellado ...
V. López   +3 more
doaj   +1 more source

Global Long‐Term Trends in Ionospheric TEC From GNSS Observations With Local‐Time Dependence

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Long‐term ionospheric changes are expected as a consequence of thermospheric cooling driven by increasing greenhouse gas concentrations. We analyze global ionospheric total electron content (TEC) derived from GNSS observations for 2000–2024 using the high‐resolution ISEE data set.
Bruno S. Zossi   +4 more
wiley   +1 more source

Condiciones meteorológicas a nivel global y local, cambio climático y "El Niño 1997-98"

open access: yesRevista Peruana de Biología, 2014
El evento "El Niño 1997-98" mostró una evolución rápida y de gran intensidad, resultando uno de los más fuertes ocurridos sobre el Pacífico Ecuatorial Central y Oriental en los últimos 150 años.
Ena Jaimes
doaj   +1 more source

El plasma en la atmósfera [PDF]

open access: yes, 1965
La alta atmosfera esta constituida por un gas ionizado (plasma) de débil densidad. que, bajo la acción de los campos electromagneticos genera-dos en la tierra y las radiaciones procedentes del espacio exterior, da lugar a multitud de fenome-nos físicos ...
Liñán Martínez, Amable
core   +1 more source

Adaptación al aire enrarecido de las simas y cuevas. Estudio de laboratorio [PDF]

open access: yes, 2008
Introducción y objetivos: En el macizo del Garraf (Barcelona) las simas tienen una atmósfera con disminución de oxígeno y aumento de CO2 respecto a la normalidad.
Bosch Cornet, Joan   +5 more
core   +1 more source

Global Comparison of Aqueous Geochemistry and Dissolved H2/CH4 in Continental Low Temperature Serpentinization–Influenced Environments

open access: yesHydrological Processes, Volume 40, Issue 3, March 2026.
Conceptual diagram of hydrological and geochemical processes within the Santa Elena Ophiolite, Costa Rica. It highlights watershed cross‐sections, soil genesis, hyperalkaline Type II waters (pH > 11.6) with calcite crust and trapped H2/CH4 gases, seepage into surface waters, storm‐impacted stream profiles, weathered vs.
Alexandra May   +8 more
wiley   +1 more source

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