Ismael L. Lozano- PhD in Physics and Space Sciences
- PostDoc Position at University of Helsinki
Ismael L. Lozano
- PhD in Physics and Space Sciences
- PostDoc Position at University of Helsinki
Interested in solar radiation/atmosphere interactions and their effects on ecosystems.
About
20
Publications
1,352
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Introduction
BS in Environmental Sciences, MS in water science and PhD in Atmospheric physics. Ismael L. Lozano is currently working at the Department of Forest Sciences in the University of Helsinki (Finland), and is collaborating in several projects related with Biodiversity, Carbon sequestration and Carbon Neutrality: IBC-Carbon (https://www.ibccarbon.fi/en-US), C-NEUT and Forest-Carbon-Monitoring (https://www.forestcarbonplatform.org/).
Current institution
Additional affiliations
October 2018 - November 2021
October 2016 - October 2018
Education
October 2016 - November 2021
October 2015 - June 2016
Field of study
- Water Quality Techniques and Sciences (IDEA). Specialty: Biomonitoring Techniques and Design Recovery Strategies for Stressed Aquatic Systems (Diagnosis)
September 2011 - July 2015
Publications
Publications (20)
Algal-bacterial interactions include mutualism, commensalism, and predation. However, how multiple environmental conditions that regulate the strength and prevalence of a given interaction remains unclear. Here, we test the hypothesis that the prevailing algal-bacterial interaction shifted in two years (2005 versus 2015), due to increased temperatu...
This study addresses the analysis of the aerosol radiative forcing (ARF) and aerosol forcing efficiency (AFE) at surface in the Photosynthetically Active and Total radiation ranges in a Southwest Mediterranean site. A thorough analysis of a long-term database (2008–2018) has been performed, bringing very valuable results about both, the absolute va...
It is widely accepted that in many aquatic ecosystems bacterioplankton is dependent on and regulated by organic carbon supplied by phytoplankton, leading to coupled algae-bacteria relationship. In this study, an in-depth analysis of this relationship has been carried out by combining two approaches: (i) a correlation analyses between heterotrophic...
This study addresses the analysis of the cloud effects on photosynthetically active radiation (PAR, 400–700 nm) for global (PARGlobal) and its diffuse component (PARDiffuse). To this aim, a 11-year database of measured PARGlobal and modeled PARDifuse recorded in a Mediterranean site was analyzed, for both clear-sky and all-sky scenarios. PARGlobal...
Net surface radiation is a crucial parameter across various fields, as it represents the available energy for the energy exchange between the surface and the atmosphere. This work presents a new model for estimating instantaneous daytime net surface radiation (Rn) under all sky conditions, using solar position via cos ϴz and the clearness index (kt...
Context
Metabolic balance determines whether an ecosystem acts as a source or sink of carbon dioxide (CO2) and considering that a substantial portion of inland aquatic ecosystems act as a source of CO2 to the atmosphere, it is important to highlight that there is still no agreement on how global change will affect the ecosystem metabolic-balance re...
Most weather forecasting models are not able to accurately reproduce the great variability existing in the measurements of the diffuse component of photosynthetically active radiation (PAR; 400–700 nm) under all sky conditions. Based on the well‐known relationship between the diffuse fraction (k) and the clearness index (kt), this study addresses i...
This study is the last of a series of three research papers analysing the solar radiation and its interaction with the atmospheric components spanning an eleven-year period (2008 - 2018) at a mid-latitude urban site in the Mediterranean basin. During the previous works a detailed characterization of the photosynthetically active radiation (PAR; 400...
A new method to estimate aerosol radiative forcing (ARF) on photosynthetically active radiation (PAR) is proposed using as input only the solar position and global irradiance measurements, available in many radiometric stations worldwide. The main contribution of this work is the proposal of a new and simple tool (max-kt method) based in the parame...
This work analyses the aerosol radiative effects on Total solar irradiance (Total) and Photosynthetically Active Radiation (PAR) in Granada, an urban site in Spain, Southwest of the Mediterranean region, from a long-term database (2008-2018). To this aim, simultaneous measurements of Total, PAR and aerosol optical depth (AOD) have been used.
The r...
In this work we have performed a preliminary analysis to evaluate the radiative effect of atmospheric aerosols on photosynthetically active radiation (PAR). PAR plays a main role in plant growth, since PAR is utilized by plants in photosynthesis to convert light energy into biomass by biochemical processes. For this purpose and with data obtained a...
The literature proposes that the existence of phytoplankton-bacteria coupling (PBC) should lead to a significant correlation between heterotrophic bacterial production (HBP) and dissolved primary production (DPP). This correlation may be stronger when the strength of PBC, defined as the extent to which DPP meets bacterial carbon demand (BCD), becom...
The literature proposes that the existence of phytoplankton-bacteria coupling (PBC) should lead to a significant correlation between heterotrophic bacterial production (HBP) and dissolved primary production (DPP). This correlation may be stronger when the strength of PBC, defined as the extent to which DPP meets bacterial carbon demand (BCD), becom...
