BUSCADOR RECOLECTA

ZEE-2014 Cruise (29HE20140429) carried out on the Research Vessel Hespérides in 2014, During the cruise, which had as main objective the study of the Exclusive Economic Zone of the North of the Iberian Peninsula, 4,983 nautical miles of sounding, verification of anomalies of the magnetic and gravitational field, and probe with penetration capacity in the subsoil have been made , to study the different layers of sediments. The study area covered by the 'Hespérides' has been 58,682 km², which would roughly equal the size of the territory of Castilla-La Mancha. The 2014 ZEE cruise was directed by the Royal Navy Observatory (ROA), with the support of 45 scientists belonging to the Navy Hydrographic Institute (IHM), the Marine Technology Unit (UTM) of the Spanish National Research Council ( CSIC), the Spanish Oceanographic Institute (IEO), the Geological and Mining Institute of Spain (IGME), and the universities of Cantabria, Cádiz, Oviedo and Complutense de Madrid

PUMP Cruise (29HE20140831) carried out on the Research Vessel Hespérides in 2014, Study of the Vertical Oceanic Pump in mesoscale eddies (PUMP). This project will study the dynamics/kinematics of the ageostrophic secondary circulation (ASC) and mixing in surface mesoscale anticyclonic eddies and how they modulate plankton activity, plankton community structure, and accumulation and downward transport of organic matter (the Vertical Oceanic Pump, VOP). For this purpose we will conduct a novel interdisciplinary sampling strategy to survey an anticyclonic eddy from a Lagrangian perspective with a resolution down to the submesoscale range using cutting-edge instrumentation and methodologies. We will pay particular attention to the control of the ASC by eddy/wind interaction, by mixing, and by current/wind interaction and frontogenesis/frontolysis at its periphery. ASC will be diagnosed from trajectories of drifters drogued at the Ekman layer and at the eddy´s interior and using an omega-type equation that will include direct measurements of mixing/turbulence. Mixing regime, dynamic stability and vertical diffusion of tracers will be observed and derived from direct measurement of mixing/turbulence. Near-inertial waves trapping and its role in driving shear mixing will be studied from drifter trajectories and from the vertical variability of the horizontal velocity field. To establish the dynamics that forces the VOP we will also develop processes-oriented models and implement regional physical and physical-biogeochemical models for the Canary Region. We will also take advantage of the exceptional source of tracer provided by the El Hierro Island submarine volcanic eruption for the study of eddy submesoscale spatial-temporal variability, combining satellite images and modeling. Finally the physical and biogeochemical observations and processes will be combined and correlated to derive a conceptual model of the dynamics of the marine system linked to the VOP in mesoscale eddies

TRANSPEGASO Cruise (29HE20141020) carried out on the Research Vessel Hespérides in 2014, Study of atmosferic and ocean interchanges.Trans-PEGASO cruise: Take advantage of the transit from Cartagena to Punta Arenas prior to the Antarctic campaign. A small group of researchers will embark together with the instruments already installed for the subsequent PEGASO cruise and, during the southern transit, they will carry out continuous measurements aimed at: (1) setting up the equipment for the PEGASO cruise and solving the problems of operability that may arise; and (2) obtain complementary data to the PEGASO cruise, of great interest because it is a transect across a wide range of latitudes

TASMANDRAKE Cruise (29HE20180111) carried out on the Research Vessel Hespérides in 2018, The general objective of the TASMANDRAKE project is the study of the onset and evolution of the Antarctic Circumpolar Current (ACC). Taking into account the allowed period and that the capabilities of the geophysical equipment on board cannot image the deep structures and sediments, the cruise cannot fulfill the objectives of the TASMANDRAKE Project pertaining to the opening of gateways and onset of the ACC. We have therefore developed and alternative plan for the DRAKE2018 cruise that will allow us to collect mid-penetration to shallow data from the southern Drake-Scotia area (58ºS/62ºS and 60ºW/50ºW) and the South Orkney Shelf (60ºS/63ºS and 50ºW/40ºW). With this kind of capabilities we target those objectives of the TASMANDRAKE Project dealing with: 1) the evolution of the ACC during the Pleistocene and the Holocene; and 2) near-surface structure of continental blocks (i.e., the South Orkney micro-continent and the platform surrounding Elephant Island) and age of the older oceanic crust in Drake Passage. The proposed work is aimed to help land- ocean correlations between the stratigraphy of Seymour/Marambio Island and Ocean Drilling Project Site 696, in order to better understand the break-up and paleogeographic evolution of these continental blocks. The proposed marine surveys will consist in the execution of predefined transects along which geophysical data will be collected. In addition, we expect to collect sediment cores in specific sites, in order to groundtruth seismic facies with sediment information and provide age constrains of the most recent (Quaternary-Pliocene) units

BRAVOSEIS-GALILEO-2018 Cruise (29HE20180217) carried out on the Research Vessel Hespérides in 2018, Bravoseis and Galileo-IHM. Bravoseis: Seismological study of the submarine volcanoes of the Bransfield Strait (Antarctica): geodynamic environment, tectonic activity, local structure and earthquake-volcanic activity. The aim of Galileo-IHM project is to record and study the signal received from the Galileo satellites in high latitude, and more precisely in the Antarctic, where there is more satellites available. This is the third survey of this project that ends in 2018. The main interest is focused in the Public Regulated Service (PRS) although the Open Service (OS) signal was observed too

RETRO-ERZ Cruise (29HE20180426) carried out on the Research Vessel Hespérides in 2018, The main objective of this cruise was to study in detail the area of interaction between the western border current NBC (North Brazil Current) and the zonal current EUC (Equatorial UnderCurrent). Traffic maps acquired from numeric models and dynamic height satellite images helped locate the retroflection of NBC and the origin of the EUC. The region was sampled by the SeaSoar CTD undolutor, CTD + Rosette + LADCP and the microstructure profiler. The dynamic field of the study area was observed through the ADCP, distribution of the currents at 80 meters depth

ARIOS Cruise (29MY20180115) carried out on the Research Vessel Mytilus in 2018, ARIOS: Acidification in the estuaries and Iberian oceanic platform

UVIGO Cruise (29MY20180201) carried out on the Research Vessel Mytilus in 2018, Training of the students of the University of Vigo

CALECO Cruise (29MY20180522) carried out on the Research Vessel Mytilus in 2018, CALECO: Demography and trophic relationships of squid larvae in an oceanographic upwelling area: towards an ecosystem approach to the management of this resource

ROAGA Cruise (29MY20181004) carried out on the Research Vessel Mytilus in 2018, Environmental Observation Network of Galicia (ROAGA) Xunta de Galicia