Dalton Kei Sasaki

ORCID: 0000-0002-8006-0200
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About
Contact & Profiles
Research Areas
  • Oceanographic and Atmospheric Processes
  • Marine and fisheries research
  • Tropical and Extratropical Cyclones Research
  • Climate variability and models
  • Ocean Waves and Remote Sensing
  • Marine Biology and Ecology Research
  • Coral and Marine Ecosystems Studies
  • Hydrology and Watershed Management Studies
  • Hydrological Forecasting Using AI
  • Flood Risk Assessment and Management
  • Marine and coastal ecosystems
  • Coastal and Marine Dynamics
  • Geology and Paleoclimatology Research
  • Per- and polyfluoroalkyl substances research
  • Crustacean biology and ecology
  • Toxic Organic Pollutants Impact
  • Coastal and Marine Management
  • Seismic Waves and Analysis
  • Geophysics and Gravity Measurements
  • Environmental Toxicology and Ecotoxicology
  • Aquatic Invertebrate Ecology and Behavior
  • Genetic diversity and population structure
  • Marine and coastal plant biology
  • Soil Moisture and Remote Sensing
  • Geological formations and processes

Universidade de São Paulo
2011-2023

Ethnographic Museum
2023

Institut Français de la Mer
2023

The Santos Basin (SB) is the main petroliferous basin in Brazilian continental margin and one of most studied marine areas Brazil. However, historical data suggest that new efforts should be carried out to acquire quantitative biological data, especially deep sea, establish baseline essential ocean variables different ecosystems for future monitoring programs. energy company Petrobras planned executed 24 oceanographic cruises over a period 2 years assess benthic (SANSED cruise) pelagic...

10.1590/2675-2824071.22072dlm article EN cc-by Ocean and Coastal Research 2023-01-01

This study describes the hydrography and water masses of Santos Basin Continental Shelf (SBCS) during two hydrographic campaigns (SANAGU, SANSED) in 2019. Coastal Water (CW) is dominant mass southern portion SBCS, with relatively low salinity values (S<35.5 g kg–1), satellite data show that local precipitation river discharge could not account for observed cruises region domain. The explained by transport from south influenced Subtropical (STSW), which was La Plata River discharge. In...

10.1590/2675-2824071.22062md article EN cc-by Ocean and Coastal Research 2023-01-01

Abstract Deep-sea coral distribution and composition are unknown in much of the global ocean, but repurposing ocean industry surveys can fill that gap. In Santos Basin, southeast Brazil, areas (241–963 m depth) were surveyed during seven Petrobras cruises, mapping bottom topography with multibeam sonar, then collecting video remotely operated vehicles. Here, we defined deep-sea species richness, using these surveys, correlating them to physical oceanographic properties. Solenosmilia...

10.1038/s43247-023-00924-0 article EN cc-by Communications Earth & Environment 2023-08-08

Abstract. Extratropical cyclones are known to generate extreme significant wave height (swh) values at the ocean surface in western South Atlantic (wSA), which highly influenced by intraseasonal scales. This work aims investigate importance of timescales (30–180 d) regional climatology waves and its atmospheric forcing. The variability is explained analyzing storm track modulation due westerly winds. These winds present spatial patterns compatible with component Pacific American (PSA)...

10.5194/wcd-2-1149-2021 article EN cc-by Weather and Climate Dynamics 2021-12-02

Abstract Aim Seascape genomic studies aim to understand how environmental variables shape species diversity through genotype–environment associations. Identifying these effects on lecithotrophic larval that live in intertidal zones is particularly challenging because they are subject heterogeneity and anthropogenic events. Here, we evaluate biotic abiotic features the Southwest Atlantic littoral zone can affect a high dispersal species' present historical demography. Location Brazilian...

10.1111/jbi.14504 article EN Journal of Biogeography 2022-10-12

<title>Abstract</title> A regional climatology of the subtropical area along South Brazil Bight is created in order to establish seasonal average hydrographic conditions over continental shelf and slope. multiscale objective analysis with a potential vorticity constraint used historical temperature salinity profiles from different databases. Relative World Ocean Atlas 2018, interpolation produced improved results, which were evaluated by comparing surface fields satellite data, also sea...

10.21203/rs.3.rs-3535804/v1 preprint EN cc-by Research Square (Research Square) 2023-11-03

Abstract. Extratropical cyclones are known to generate extreme significant wave height (swh) values in the western South Atlantic (wSA), which highly influenced by intraseasonal scales. This work aims investigate importance of time scales (30–180 days) regional climate and its atmospheric forcing. The variability is explained analyzing storm track modulation due westerlies winds. These winds present time-scales spatial patterns compatible with component Pacific South–American (PSA) patterns....

10.5194/wcd-2021-29 preprint EN cc-by 2021-05-26

Abstract Quantitative knowledge of river discharge measurements is essential for understanding coastal and estuarine dynamics salinity variations. However, direct are scarce a large portion rivers in Brazil. In this study, five simple models based on remote sensing local rainfall datasets (MERGE) from the Ribeira de Iguape catchment used to estimate Valo Grande Channel (VGC) southeastern coast These use linear, quadratic, exponential two different multiple linear regression methods. The...

10.21203/rs.3.rs-2456572/v1 preprint EN cc-by Research Square (Research Square) 2023-01-12
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