In this paper, a new application of the Compressed Sensing (CS) theory to the data transmission problem in oceanographic large-scale monitoring missions is proposed. The amount of the data (temperature, salinity and so on) collected during this mission can be huge and the transmission process could become prohibitively expensive in terms of both battery consumption and monetary cost of the sate...

Biological hot spots in the ocean are likely created by physical processes and have distinct oceanographic signatures. Marine predators, including large pelagic fish, marine mammals, seabirds, and fishing vessels, recognize that prey organisms congregate at ocean fronts, eddies, and other physical features. Here we use remote sensing observations from multiple satellite platforms to characteriz...

The Okhotsk Sea is the southernmost marginal sea that is ice-covered during winter; therefore, it is considered to be an area having sensitive environmental characteristics due to the influence of global warming. In order to detect such environmental changes, monitoring of oceanographic conditions is considered important. However, few monitoring studies have been made in the offshore area of th...

Seamounts are considered hot spots of biodiversity and can aggregate pelagic predators and their prey. Passive acoustic monitoring was conducted over 3 mo in 2012 to document the occurrence of odontocetes near a seamount chain in the central equatorial Pacific in relation to oceanographic changes over time. Beaked whale echolocation signals were most frequently encountered. The main beaked whal...

Monitoring of the marine environment has come to be a field of scientific interest in the last ten years. The instruments used in this work have ranged from small-scale sensor networks to complex observation systems. Among small-scale networks, Wireless Sensor Networks (WSNs) are a highly attractive solution in that they are easy to deploy, operate and dismantle and are relatively inexpensive. ...

In this paper we describe some of the practical issues involved in designing, building and deploying a sensor network for oceanographic monitoring. The paper explains some of the design decisions and their consequences, and some of the lessons learned from a first sensor network trial at sea.

Using global physical and biological datasets, we tested oceanographic retention (factoring out effects of seamount depth and age) as one possible mechanism structuring seamount benthic decapod and gastropod communities. We first determined the relative oceanographic retentive potential (such as from Taylor caps or columns) for individual seamounts based on steady-state theory. This was then se...

We present the first remotely operated vehicle investigation of megabenthic communities (1004-1695 m water depth) on the Hebrides Terrace Seamount (Northeast Atlantic). Conductivity-temperature-depth casts showed rapid light attenuation below the summit and an oceanographic regime on the flanks consistent with an internal tide, and high short-term variability in water temperature, salinity, lig...

Trait values are usually extracted from laboratory studies of single phytoplankton species, which presents challenges for understanding the immense diversity of phytoplankton species and the wide range of dynamic ocean environments. Here we use a Bayesian approach and a trait-based model to extract trait values for four functional types and ten diatom species from field data collected at Statio...

The long-term goal of this project is to quantify the environmental drivers of extremely rapid coastal erosion in the Arctic, and to begin developing predictive models of future rates of coastal erosion resulting from climate change. Our study is focused on the Beaufort Sea coast within the National Petroleum Reserve – Alaska (NPR-A), approximately halfway between Barrow and Prudhoe Bay. We are...