BUSCADOR RECOLECTA

MIXTO Cruise (29HE20160306) carried out on the Research Vessel Hespérides in 2016, The main objectives of this survey are: 1) Mapping sedimentary features resulting from the interaction of water bodies with gravitational features ( valleys and landslides ) from the upper slope 2) seismic analysis for the establishment of a model facies sedimentary 3) Determine the recent sedimentary processes. During the cruise, which in its data collection stage in the south of Buenos Aires completed 990 miles of navigation between 39 and 42 ° Lat. S, geomorphological and morphosedimentary features of the outer platform and slope at depths between 90 and 4000 meters were analyzed, sedimentary structures of the shallow subsoil (up to 100 m below the bottom) were analyzed, and recent processes related to the interaction between geological factors (transport of sediments, erosion-deposition processes on terraces and gravitational on slopes and underwater canyons) and oceanographic (interfaces between water masses, longitudinal currents to the margin and turbidity). The instruments used were: multi-beam echo sounder of shallow and deep water, parametric profiler TOPAS, 12 KHz echo sounder, biological echo sounder, XBT-XSV and Doppler ADCP

INCRISIS Cruise (29HE20160523) carried out on the Research Vessel Hespérides in 2016, On January 25, 2016 there was an earthquake of magnitude Mw = 6.3 with epicenter in the Alboran Sea (35.6ºN, 3.81ºW), which caused material damage in Melilla and Moroccan cities; It was also felt in the southeast of Iberia. It is the main earthquake of the seismic crisis that continues today. Its focal mechanism and the distribution of replicas suggest the activity of an unknown fault of direction NNE-SSO of about 25 km in length, in the western part of the Dorsal de Alboran. This seismic activity seems to be in continuity with the earthquakes of Alhucemas of 1994 and 2004, and associated with the prolongation of a fault zone in the rifeña mountain range. The realization of this marine geology cruise is a unique opportunity to know the effects that the seismicity of these characteristics causes in the bottom and sub-fund of the Alboran Sea, such as displacements of the seabed, triggering of landslides and other risks associated with them ( eg, tsunamis) that would affect both Moroccan and Spanish coastal areas. The results of this campaign will be analyzed in detail during the development of a new research project (DAMAGE) requested to the MINECO call and will contribute to characterize the geological hazard of active faults in the Alboran Sea. The specific objectives of this cruise include: 1) Cartography and characterization of sedimentary and tectonic features and comparison with the previous data 2) Stratigraphic analysis, simian facies and deformation structures 3) Determination of sedimentary and tectonic processes triggered by the earthquake and the seismic crisis

ZEE-2016 Cruise (29HE20160527) carried out on the Research Vessel Hespérides in 2016, ZEE-2016 cruise : Bathimetry, magnetic field, gravimeter field of Balear Sea. The main objectives will be: - Systematic recognition of study areas with 100% coating, with multi-beam probe, using also single-beam probe, EA-600 and EK60, gravimetry, geomagnetism, sediment penetrator, and oceanographic parameters. The Multi-beam, single-beam and Bathymetry works will be priority, performing simultaneously geomagnetic, gravimetric and high resolution seismic and oceanographic works. Systematic data collection of: - XBT / XSV - Weather Station - Termosalynograph - Doppler

GALILEO-IHM-2017 Cruise (29HE20170208) carried out on the Research Vessel Hespérides in 2017, This project has two main objectives: 1. Trials of signals and positioning of the european GNSS Galileo for the OS and PRS Services. 2. Various bathymetric surveys for nautical charting purposes, This data will be available for the oficial Spanish Hydrographic Office nautical chart portfolio

RETRO-BMC Cruise (29HE20170408) carried out on the Research Vessel Hespérides in 2017, The RETRO-BMC aimed at studying the variability of the Malvinas-Brazil Confluence region at the mesoscale and submesoscale, including thermohaline intrusions and the river plume. A secondary objective was to gather combined current+hydrography data in the Beagle Channel

ZEE-2017 Cruise (29HE20170612) carried out on the Research Vessel Hespérides in 2017, Oceanographic cruise of the Spanish Exclusive Economic Zone 2017 in waters of the Canary Archipelago. Objectives: - The systematic bathymetric survey of designated areas with full exploration of the background, using multibeam probes. - The systematic collection of gravimetry and magnetometry data and of acoustic profiles of the marine subsoil structure. The Obtaining this data will be secondary and always prioritizing the multibeam bathymetry from the previous section. - The systematic collection of oceanographic data and complementary environmental - Vertical Profiles of Celerity of Sound, through XBT Batitermographs, - Meteorological Data, through instrumentation of the Weather Station, -Surface temperature and salinity data, through Thermosalinograph equipment, - Current data in the surface layers through acoustic current meters ADCP

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

EXPLOSEA-1 Cruise (29HE20190214) carried out on the Research Vessel Hespérides in 2019, The objective of the EXPLOSEA 1 cruise is the exploration and multidisciplinary research of submarine hydrothermal vents of low to high temperature in the Atlantic mid-ocean ridge, to the north of the Azores Islands and in the Azores Islands. The survey will address the exploration and characterizations of the venting sites including the water column, the sediments and rocks that host the hydrothermal activity and the associated mineralizations. This cruise is part of the “Exploration of submarine hydrothermal vents and associated mineral deposits and geobio-systems (EXPLOSEA)” project (CTM2016–75947-R)