Please login first
Eduardo Santamaría-del-Ángel   Dr.  Institute, Department or Faculty Head 
Timeline See timeline
Eduardo Santamaría-del-Ángel published an article in September 2018.
Top co-authors See all
Robert Frouin

78 shared publications

Scripps Institution of Oceanography (United States)

M. F. Lavin

28 shared publications

Departamento de Oceanografía Física; CICESE; Ensenada Baja California Mexico

Charles Trees

7 shared publications

San Diego State University

Roberto Millán-Núñez

6 shared publications

Universidad Autónoma de Baja California

V.F. Camacho-Ibar

4 shared publications

8
Publications
12
Reads
3
Downloads
22
Citations
Publication Record
Distribution of Articles published per year 
(2006 - 2018)
Total number of journals
published in
 
8
 
Publications See all
Article 0 Reads 0 Citations Evaluation of Semi-Analytical Algorithms to Retrieve Particulate and Dissolved Absorption Coefficients in Gulf of Califo... Stella Patricia Betancur-Turizo, Adriana González-Silvera, E... Published: 10 September 2018
Remote Sensing, doi: 10.3390/rs10091443
DOI See at publisher website ABS Show/hide abstract
Two semi-analytical algorithms, Generalized Inherent Optical Property (GIOP) and Garver-Siegel-Maritorena (GSM), were evaluated in terms of how well they reproduced the absorption coefficient of phytoplankton (aph(λ)) and dissolved and detrital organic matter (adg(λ)) at three wavelengths (λ of 412, 443, and 488 nm) in a zone with optically complex waters, the Upper Gulf of California (UGC) and the Northern Gulf of California (NGC). In the UGC, detritus determines most of the total light absorption, whereas, in the NGC, chromophoric dissolved organic material (CDOM) and phytoplankton dominate. Upon comparing the results of each model with a database assembled from four cruises done from spring to summer (March through September) between 2011 and 2013, it was found that GIOP is a better estimator for aph(λ) than GSM, independently of the region. However, both algorithms underestimate in situ values in the NGC, whereas they overestimate them in the UGC. Errors are associated with the following: (a) the constant a*ph(λ) value used by GSM and GIOP (0.055 m2 mgChla−1) is higher than the most frequent value observed in this study’s data (0.03 m2 mgChla−1), and (b) satellite-derived chlorophyll a concentration (Chla) is biased high compared with in situ Chla. GIOP gave also better results for the adg(λ) estimation than GSM, especially in the NGC. The spectral slope Sdg was identified as an important parameter for estimating adg(λ), and this study’s results indicated that the use of a fixed input value in models was not adequate. The evaluation confirms the lack of generality of algorithms like GIOP and GSM, whose reflectance model is too simplified to capture expected variability. Finally, a greater monitoring effort is suggested in the study area regarding the collection of in situ reflectance data, which would allow explaining the effects that detritus and CDOM may have on the semi-analytical reflectance inversions, as well as isolating the possible influence of the atmosphere on the satellite-derived water reflectance and Chla.
Article 0 Reads 0 Citations Mapping Satellite Inherent Optical Properties Index in Coastal Waters of the Yucatán Peninsula (Mexico) Jesús A. Aguilar-Maldonado, Eduardo Santamaria-Del-Angel, Ad... Published: 06 June 2018
Sustainability, doi: 10.3390/su10061894
DOI See at publisher website ABS Show/hide abstract
The Yucatán Peninsula hosts worldwide-known tourism destinations that concentrate most of the Mexico tourism activity. In this region, tourism has exponentially increased over the last years, including wildlife oriented tourism. Rapid tourism development, involving the consequent construction of hotels and tourist commodities, is associated with domestic sewage discharges from septic tanks. In this karstic environment, submarine groundwater discharges are very important and highly vulnerable to anthropogenic pollution. Nutrient loadings are linked to harmful algal blooms, which are an issue of concern to local and federal authorities due to their recurrence and socioeconomic and human health costs. In this study, we used satellite products from MODIS (Moderate Resolution Imaging Spectroradiometer) to calculate and map the satellite Inherent Optical Properties (IOP) Index. We worked with different scenarios considering both holiday and hydrological seasons. Our results showed that the satellite IOP Index allows one to build baseline information in a sustainable mid-term or long-term basis which is key for ecosystem-based management.
Article 0 Reads 0 Citations Vertical distribution of calanoid copepods in a mature cyclonic eddy in the Gulf of California Javier Cruz-Hernández, Laura Sánchez-Velasco, Victor M. Godí... Published: 01 January 2018
Crustaceana, doi: 10.1163/15685403-00003751
DOI See at publisher website
CONFERENCE-ARTICLE 10 Reads 0 Citations <strong>Applying SPOT images to study the Colorado River effects on the Upper Gulf of California</strong> Jesús Aguilar-Maldonado, Eduardo Santamaría-del-Angel, Maria... Published: 16 November 2017
Proceedings, doi: 10.3390/ecws-2-04951
DOI See at publisher website ABS Show/hide abstract

Sediment discharges from rivers play a key role in downstream ecosystems, both for ecosystem morphology (e.g. deltas) and productivity. However, construction of dams and river regulation dramatically alter sediment transport. Currently, the Colorado River delta is one of the most transformed deltas in the world and no flow reaches the Gulf of California in most of the years. In this study, we used satellite images for the observation and measurement of coastal waters turbidity in the Upper Gulf of California (UGC) and Colorado River Delta (CRD). Specifically, we used SPOT high spatial resolution satellite. We processed images of the wavelength 2 (610-680 nm) from the period between 2008 and 2013 in the Biosphere Reserve area. Results showed that suspended material and high turbidity predominate in the CRD and intertidal zones of the UGC. High and very high turbidity values were due to two opposite coastal transport components along the Sonora and Baja California coasts. The high spatial resolution of the SPOT sensor effectively allowed locating the sediment transport gradients and the accumulation zones in a highly variable area. This information provided by SPOT images can be very valuable for management decisions such as the amount of ecological flow that needs to be released. This area is the habitat of endangered species, such as totoaba (Totoaba macdonaldi) and vaquita (Phocoena sinus), that are seriously affected by the loss of estuarine conditions. High resolution satellite images can help in quantifying the true extent of corrective measures.

Article 1 Read 1 Citation Effects of Geostrophic Kinetic Energy on the Distribution of Mesopelagic Fish Larvae in the Southern Gulf of California ... Fernando Contreras-Catala, Laura Sánchez-Velasco, Emilio Bei... Published: 19 October 2016
PLOS ONE, doi: 10.1371/journal.pone.0164900
DOI See at publisher website ABS Show/hide abstract
Effects of geostrophic kinetic energy flux on the three-dimensional distribution of fish larvae of mesopelagic species (Vinciguerria lucetia, Diogenichthys laternatus, Benthosema panamense and Triphoturus mexicanus) in the southern Gulf of California during summer and fall seasons of stronger stratification were analyzed. The greatest larval abundance was found at sampling stations in geostrophic kinetic energy-poor areas ( 21 J/m3), where mesoscale eddies were present, the larvae of the dominant species had low abundance and were spread more evenly through the water column, in spite of the water column stratification. For example, in a cyclonic eddy, V. lucetia larvae (34 larvae/10m2) extended their distribution to, at least, the limit of sampling 200 m depth below the pycnocline, while D. laternatus larvae (29 larvae/10m2) were found right up to the surface, both probably as a consequence mixing and secondary circulation in the eddy. Results showed that the level of the geostrophic kinetic energy flux affects the abundance and the three-dimensional distribution of mesopelagic fish larvae during the seasons of stronger stratification, indicating that areas with low geostrophic kinetic energy may be advantageous for feeding and development of mesopelagic fish larvae because of greater water column stability.
Article 1 Read 12 Citations Three-dimensional distribution of fish larvae in a cyclonic eddy in the Gulf of California during the summer L. Sánchez-Velasco, M.F. Lavin, S.P.A. Jiménez-Rosenberg, Vi... Published: 01 May 2013
Deep Sea Research Part I: Oceanographic Research Papers, doi: 10.1016/j.dsr.2013.01.009
DOI See at publisher website
Top