John Stephen Kayode

A methodological approach to the air-sea energy fluxes data collection and analysis at the tropical coastal ocean

Graphical abstract

Subsurface Structural Pattern Distributions of the Magnetic Anomalies in Part of the Nigerian South-Western Precambrian Basement Complex for Sustainability

A study using the subsurface structural patterns technique was carried out to locate, classify and outline the magnetic anomaly source rocks underlying the Omu-Aran Schist belt zone together with determination of the depth of these various source rocks within the study area for sustainability. The processes were carried out through a series of E-W and N-S geomagnetic cross-sections of 58.70 by 56.8 km spread across the study area in part of the Nigerian South-western Precambrian Basement Complex. The primary objective of this study was to use an uncomplicated technique to locate these magnetic anomalies and identify the mineralization potential in the area. The subsurface geological structural patterns in this area were adequately mapped using the Oasis Montaj 2014 source parameter imaging function integrated with Surfer 10 and euldph-x algorithms that automatically compute the depths of the various magnetic anomaly sources using aeromagnetic data acquired from the Nigerian Geological Survey Agency. These anomaly sources as delineated, consist of arrays of north-north-east and south-south-west influencing the underground structures that control the surface geologic characteristics which determine the mineral potential in parts of the north-east, the north-west and the south-western zones of the study area with very low and high values of total magnetic intensity. The large dome-shaped structure that overlies a buried block of inferred meta-sedimentary rocks in this area suggests that subsurface mineral distributions in this area may perhaps be influenced by its location in the highly mineralized Nigerian South-western Basement Complex together with the rich mafic and ultramafic granitic-migmatite Basement Terrain that also underlies the area.

Data on micrometeorological parameters and Energy Fluxes at an intertidal zone of a Tropical Coastal Ocean

Data on the micrometeorological parameters and Energy Fluxes at an intertidal zone of a Tropical Coastal Ocean was carried out on an installed eddy covariance instruments at a Muka head station in the north-western end of the Pinang Island (5°28’06’’N, 100°12’01’’E), Peninsula Malaysia. The vast source of the supply of energy and heat to the hydrologic and earth׳s energy cycles principally come from the oceans. The exchange of energies via air-sea interactions is crucial to the understanding of climate variability, energy, and water budget. The turbulent energy fluxes are primary mechanisms through which the ocean releases the heat absorbed from the solar radiations to the environment. The eddy covariance (EC) system is the direct technique of measuring the micrometeorological parameters which allow the measurement of these turbulent fluxes in the time scale of half-hourly basis at 20 Hz over a long period. The data being presented is the comparison of the two-year seasonality patterns of monsoons variability on the measured microclimate variables in the southern South China Sea coastal area.

Experimental data on the air-sea energy fluxes at the tropical coastal ocean in the southern South China Sea

Air-sea flux exchanges influence the climate condition and the global carbon-moisture cycle. It is imperative to understand the fundamentals of the natural systems at the tropical coastal ocean and how the transformation takes place over the time. Hence, latent and sensible heat fluxes, microclimate variables, and surface water temperature data were collected using eddy covariance instruments mounted on a platform at a tropical coastal ocean station from November 2015 to October 2017. The research data is to gain the needful knowledge of the energy exchanges in the tropical climatic environment to further improve predictive algorithms or models. Therefore, it is intended that this data report will offer appropriate information for the Monsoonal, and diurnal patterns of latent (LE) and sensible (H) heats and hence, establish the relationship between microclimate variables on the energy fluxes at the peninsular Malaysian tropical coastal ocean.

Data on the evaluation of structural index from aeromagnetic enhanced datasets with the application of Euldph-λ semi-automatic algorithm

A secondary dataset was generated from the Euldph-λ semi-automatic Algorithm, (ESA) developed to automatically computes various depths to the magnetic anomalies using a primary data set from gridded aeromagnetic data obtained in the study area. Euler Deconvolution techniques, (EDT), was adopted in the identification and definition of the magnetic anomaly source rocks in the study area. The aim is to use the straightforward technique to pinpoint magnetic anomalies at a depth which substantiate mineralization potential of the area. The ESA was integrated with the imaging function of Oasis Montaj 2014 source parameter from Geosoft® Inc. From the data, it could be summarized that similar tectonic processes during the deformation and metamorphic activities, the subsurface structures of the study area produce corresponding trending form.