scholarly journals Wind waves in the North Atlantic from ship navigational radar: SeaVision development and its validation with Spotter wave buoy and WaveWatch III

2021 ◽  
Author(s):  
Natalia Tilinina ◽  
Dmitry Ivonin ◽  
Alexander Gavrikov ◽  
Vitaly Sharmar ◽  
Sergey Gulev ◽  
...  
Keyword(s):  
North Atlantic ◽  
Wind Waves ◽  
Open Ocean ◽  
Wavewatch Iii ◽  
Observational Network ◽  
The North ◽  
X Band ◽  
Global Coverage ◽  
The North Atlantic ◽  
Buoy Data

Abstract. The global coverage of the observational network of the wind waves is still characterized by the significant gaps in in situ observations. At the same time wind waves play an important role into the Earth’ climate system specifically in the air-sea interaction processes and energy exchange between the ocean and the atmosphere. In this paper we present the SeaVision system for measuring wind waves’ parameters in the open ocean with navigational marine X-band radar and prime data collection from the three research cruises in the North Atlantic (2020 and 2021) and Arctic (2021). Simultaneously with SeaVision observations of the wind waves we were collecting data in the same locations and time with Spotter wave buoy and running WaveWatch III model over our domains. Measurements with SeaVision were quality controlled and validated by comparison with Spotter buoy data and WaveWatch III experiments. Observations of the wind waves with navigational Xband radar are in agreement among these three sources of data, with the best agreement for wave propagation directions. The dataset that supports this paper consists of significant wave height, wave period and wave energy frequency spectrum from both SeaVision and Spotter buoy. Currently the dataset is available through the temporary link (https://sail.ocean.ru/tilinina2021/) while supporting dataset (Tilinina et al., 2021) is in technical processing at PANGAEA repository. The dataset can be used for validation of satellite missions as well as model outputs. One of the major highlights in this study is potential of all ships navigating into the open ocean and equipped with X-band marine radar to participate into the development of another observational network for the wind waves in the open ocean once cheap and independently operating version of the SeaVision (or any other system) is available.

An Operational System for Predicting Hurricane-Generated Wind Waves in the North Atlantic Ocean*

2005 ◽  
Vol 20 (4) ◽  
pp. 652-671 ◽  
Author(s):  
Yung Y. Chao ◽  
Jose-Henrique G. M. Alves ◽  
Hendrik L. Tolman
Keyword(s):  
Prediction Model ◽  
North Atlantic ◽  
North Atlantic Ocean ◽  
Wind Waves ◽  
Wave Model ◽  
Atlantic Hurricane ◽  
The North ◽  
Hurricane Season ◽  
The North Atlantic ◽  
Environmental Prediction

Abstract A new wind–wave prediction model, referred to as the North Atlantic hurricane (NAH) wave model, has been developed at the National Centers for Environmental Prediction (NCEP) to produce forecasts of hurricane-generated waves during the Atlantic hurricane season. A detailed description of this model and a comparison of its performance against the operational western North Atlantic (WNA) wave model during Hurricanes Isidore and Lili, in 2002, are presented. The NAH and WNA models are identical in their physics and numerics. The NAH model uses a wind field obtained by blending data from NCEP’s operational Global Forecast System (GFS) with those from a higher-resolution hurricane prediction model, whereas the WNA wave model uses winds provided exclusively by the GFS. Relative biases of the order of 10% in the prediction of maximum wave heights up to 48 h in advance, indicate that the use of higher-resolution winds in the NAH model provides a successful framework for predicting extreme sea states generated by a hurricane. Consequently, the NAH model has been made operational at NCEP for use during the Atlantic hurricane season.

Polysaccharide utilisation loci ofBacteroidetesfrom two contrasting open ocean sites in the North Atlantic

2016 ◽  
Vol 18 (12) ◽  
pp. 4456-4470 ◽  
Author(s):  
Christin M. Bennke ◽  
Karen Krüger ◽  
Lennart Kappelmann ◽  
Sixing Huang ◽  
Angélique Gobet ◽  
...  
Keyword(s):  
North Atlantic ◽  
Open Ocean ◽  
The North ◽  
The North Atlantic

NAPTRAM - Plastiktransportmechanismen, Senken und Interaktionen mit Biota im Nordatlantik / NAPTRAM - North Atlantic plastic transport mechanisms, sinks, and interactions with biota, Cruise No. SO279, Emden (Germany) – Emden (Germany), 04.12.2020 – 05.01.2021

2021 ◽  
Author(s):  
Aaron Beck
Keyword(s):  
Water Column ◽  
North Atlantic ◽  
Surface Waters ◽  
Open Ocean ◽  
Transport Pathways ◽  
The North ◽  
The North Atlantic ◽  
Vertical Export ◽  
Core Questions ◽  
Ocean Gyre

The coastal and open oceans represent a major, but yet unconstrained, sink for plastics. It is likely that plastic-biota interactions are a key driver for the fragmentation, aggregation, and vertical transport of plastic litter from surface waters to sedimentary sinks. Cruise SO279 conducted sampling to address core questions of microplastic distribution in the open ocean water column, biota, and sediments. Seven stations were sampled between the outer Bay of Biscay and the primary working area south of the Azores. Additional samples were collected from surface waters along the cruise track to link European coastal and shelf waters with the open ocean gyre. Microplastic samples coupled with geochemical tracer analyses will build a mechanistic understanding of MP transport and its biological impact reaching from coastal seas to the central gyre water column and sinks at the seabed. Furthermore, floating plastics were sampled for microbial community and genetic analyses to investigate potential enzymatic degradation pathways. Cruise SO279 served as the third cruise of a number of connected research cruises to build an understanding of the transport pathways of plastic and microplastic debris in the North Atlantic from the input through rivers and air across coastal seas into the accumulation spots in the North Atlantic gyre and the vertical export to its sink at the seabed. The cruise was an international effort as part of the JPI Oceans project HOTMIC (“HOrizontal and vertical oceanic distribution, Transport, and impact of MICroplastics”) and the BMBF funded project PLASTISEA (‘Harvesting the marine Plastisphere for novel cleaning concepts’), and formed a joint effort of HOTMIC and PLASTISEA researchers from a range of countries and institutes.

Developing configuration of WRF model for long-term high-resolution wind wave hindcast over the North Atlantic with WAVEWATCH III

2018 ◽  
Vol 68 (11) ◽  
pp. 1593-1604 ◽  
Author(s):  
Margarita Markina ◽  
Alexander Gavrikov ◽  
Sergey Gulev ◽  
Bernard Barnier
Keyword(s):  
High Resolution ◽  
North Atlantic ◽  
Wind Wave ◽  
Wrf Model ◽  
Wavewatch Iii ◽  
Wave Hindcast ◽  
The North ◽  
The North Atlantic

Wave Climatology

1969 ◽  
Vol 22 (3) ◽  
pp. 326-341
Author(s):  
John M. Kipper ◽  
Ellis J. Joseph
Keyword(s):  
Long Range ◽  
North Atlantic ◽  
High Frequency ◽  
Wind Waves ◽  
The North ◽  
Waves And Currents ◽  
The North Atlantic ◽  
The U.S

In a valuable paper published in July 1960 (Journal, 13, 253) Hanssen and James described the system developed by the U.S. Hydrographic Office (now U.S. Navy Oceanographic Office) for selecting the optimum track for transoceanic crossings by applying long-range predictions of wind, waves and currents to a knowledge of how the routed vessel reacts to these variables. In the present paper the authors, both of the Marine Sciences Department of the U.S. Navy Oceanographic Office, propose a method, based on this earlier work, of using climatic charts on the North Atlantic to avoid regions of high frequency storm conditions and thus improve ship efficiency. Essentially this method is for ships not being routed by a central forecasting office. An earlier version of the paper appeared on the verso of the U.S. North Atlantic Pilot Chart for March 1969.

scholarly journals Wave Energy Extraction by the End of the Century: Impact of the North Atlantic Oscillation

2018 ◽  
Author(s):  
Jelena Janjić ◽  
Sarah Gallagher ◽  
Emily Gleeson ◽  
Frédéric Dias
Keyword(s):  
North Atlantic Oscillation ◽  
North Atlantic ◽  
Large Scale ◽  
Global Climate ◽  
Wave Climate ◽  
Wavewatch Iii ◽  
The North ◽  
Wave Parameters ◽  
The North Atlantic ◽  
The North Atlantic Oscillation

Using wind speeds and sea ice fields from the EC-Earth global climate model to run the WAVEWATCH III model, we investigate the changes in the wave climate of the northeast Atlantic by the end of the 21st century. Changes in wave climate parameters are related to changes in wind forcing both locally and remotely. In particular, we are interested in the behavior of large-scale atmospheric oscillations and their influence on the wave climate of the North Atlantic Ocean. Knowing that the North Atlantic Oscillation (NAO) is related to large-scale atmospheric circulation, we carried out a correlation analysis of the NAO pattern using an ensemble of EC-Earth global climate simulations. These simulations include historical periods (1980–2009) and projected changes (2070–2099) by the end of the century under the RCP4.5 and RCP8.5 Representative Concentration Pathway (RCP) forcing scenarios with three members in each RCP wave model ensemble. In addition, we analysed the correlations between the NAO and a range of wave parameters that describe the wave climate from EC-Earth driven WAVEWATCH III model simulation over the North Atlantic basin, focusing on a high resolution two-way nested grid over the northeast Atlantic. The results show a distinct decrease by the end of the century and a strong positive correlation with the NAO for all wave parameters observed.

Sign in / Sign up

Export Citation Format

Share Document