Results 101 to 110 of about 7,708 (206)

Experimenting with learning-based image orientation approaches for photogrammetric mapping of Posidonia oceanica meadows [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Posidonia oceanica (L.) Delile (PO) is an endemic seagrass of the Mediterranean Sea, where it grows in the form of dense meadows extending from the surface up to 40 m depth.
F. Menna   +4 more
doaj   +1 more source

POS511 Cruise Report, The Christiana-Santorini Volcanic Complex, 01.04.2017 (Heraklion) - 22.04.2017 (Heraklion) [PDF]

open access: yes, 2017
R.V. POSEIDON Cruise No.: 511 Dates, Ports: 01.04.2017 (Heraklion) - 22.04.2017 (Heraklion) Research Subject: The Christiana-Santorini Volcanic ...
Cuno, Patrick   +11 more
core   +1 more source

Street‐to‐Pipe Diagnosis of Compound Rain–Tailwater Flooding in a Coastal Combined Sewer System: Sewer Pre‐Filling and Outfall Throttling

open access: yesEarth's Future, Volume 14, Issue 4, April 2026.
Abstract Compound flooding in coastal cities occurs when heavy rainfall coincides with tide‐driven tailwater that reduces combined sewer system (CSS) discharge capacity, yet this coupling is rarely quantified from street to pipe scale. We develop a high‐resolution 1‐D/2‐D drainage–inundation model for Hoboken, New Jersey, calibrating the 1‐D drainage ...
Shihao Xi, Yao Hu
wiley   +1 more source

First steps in underwater photogrammetry with the support of an unmanned underwater vehicle

open access: yes, 2023
The evolution of modern and increasingly sensitive image sensors, the increasingly compact design of the cameras, and the recent emergence of low-cost cameras allowed the Underwater Photogrammetry to become an infallible and irreplaceable technique used to estimate the structure of the seabed with high accuracy.
openaire   +2 more sources

As above, so below: A perspective into the application of land‐forest monitoring methods for the assessment of marine animal forests

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 4, Page 1124-1142, April 2026.
Abstract Marine animal forests (MAFs) are benthic ecosystems dominated by vertically structuring filter‐ and suspension‐feeders. As terrestrial forests, they are considered biodiversity hotspots, forming canopies, serving as a refuge, nursery, reproduction and feeding shelters for many species.
Torcuato Pulido Mantas   +9 more
wiley   +1 more source

Validating a low‐cost alternative to body surface area estimation: Implications for energy budgets and scaling relationships of ectotherms

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 4, Page 1204-1217, April 2026.
Abstract The surface area of organisms is a key parameter in ecological and evolutionary applications. For example, surface area‐dependent traits such as rates of cutaneous water loss and of heat absorbed are relevant for predicting animal desiccation rates and body temperatures.
Jody Thorburn   +2 more
wiley   +1 more source

A holographic system for subsea recording and analysis of plankton and other marine particles [PDF]

open access: yes, 2003
We report here details of the design, development, initial testing and field-deployment of the HOLOMAR system for in-situ subsea holography and analysis of marine plankton and nonliving particles.
Alexander, S   +18 more
core   +1 more source

Quantitative Evaluation of Color Enhancement Methods for Underwater Photogrammetry in Very Shallow Water: a Case Study [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Underwater photogrammetry is often hampered by chromatic aberration, leading to degraded 2D and 3D products. This study investigates the effectiveness of various color enhancement methods in addressing these challenges.Theoretical considerations indicate
A. Calantropio   +3 more
doaj   +1 more source

The Validity and Reliability of a Procedure for Competition Analysis in Swimming Based on Individual Distance Measurements [PDF]

open access: yes, 2010
In swimming, competition analyses have been frequently performed according to three segments of the nee, equal for all competitors. However, individual distance measurements during start and turn race segments have been scarcely assessed.
Cala Mejías, Antonio   +3 more
core  

Application and Challenges of Photogrammetry in Underwater Excavations: Case Studies from the Jeju Sinchang-ri and Gunsan Seonyudo Sites, Korea [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Photogrammetry has become a widely adopted method in underwater archaeology worldwide and is increasingly used in Korean land-based archaeological investigations.
J. Heon
doaj   +1 more source

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