BrainMap

Mihai Dima

Professor - UNIVERSITATEA BUCURESTI

Researcher

Web of Science ResearcherID: https://publons.com/researcher/2824210/mihai-r-dima/publications/

Curriculum Vitae (15/05/2019)

Expertise & keywords

SOLar Activity and Clouds: causal or casual Effect? (SOLACE) Call name: Exploratory Research Projects - PCE-2011 call
PN-II-ID-PCE-2011-3-0709 2011 - 2016

Role in this project:

Coordinating institution: Universitatea Dunarea de Jos din Galati

Project partners: Universitatea Dunarea de Jos din Galati (RO)

Affiliation: Universitatea Dunarea de Jos din Galati (RO)

Project website: http://www.solace.ugal.ro

Abstract:

The present proposal addresses the domain of solar-cloud cover relationship, a hot topic of the equally hot debate about the cause and evolution of climate change. In order to disentangle between effects of cosmic rays and of solar UV radiation on cloud cover, we plan to carry on a comprehensive study that will use modeling techniques, advanced methods of correlation and statistical analysis. Careful, detailed and well-oriented analysis will allow indentifying patterns, length and coherence of correlation, various characteristics of relationships, that will contribute either to inferring the mechanisms by which the Sun may affect the terrestrial cloud cover or to excluding some hypothesis. The major objective of the present work is to build a comprehensive picture of the role played by solar proxies (CRII, UVI) in terrestrial cloud cover. Specific objectives: identification of geographical areas with robust correlations using additional knowledge about other external influences; analysis of cloud composition influence on solar – cloud cover link; understanding the cause/mechanism for UVI, respectively CRII, link to cloud cover; analysis of seasonal variation of global, geographical distribution of the correlations solar proxies - cloud cover; investigation of possible intervening effect of internal climatic factors (common climatological characteristics, internal climatic oscillations, teleconnections) in solar – cloud links.

CLIMATE ARCHIVES IN KARST - AN INTEGRATED APPROACH TO THE STUDY AND MODELING OF ABRUPT CLIMATE OSCILLATIONS Call name: Complex Exploratory Research Projects - PCCE-2008 call
PN-II-ID-PCCE-2008-0031 2010 - 2013

Role in this project:

Coordinating institution: INSTITUTUL DE SPEOLOGIE EMIL RACOVITA, LABORATORUL DE GEOCRONOLOGIE SI PALEOCLIMATOLOGIE

Project partners: INSTITUTUL DE SPEOLOGIE EMIL RACOVITA, LABORATORUL DE GEOCRONOLOGIE SI PALEOCLIMATOLOGIE (RO); Academia Romana Filiala Cluj, INSTITUTUL DE SPEOLOGIE EMIL RACOVITA, DEPARTAMENTUL CLUJ-NAPOCA (RO); UNIVERSITATEA BUCURESTI, FACULTATEA DE GEOLOGIE-GEOFIZICA, CENTRUL LYTHOS (RO); UNIVERSITATEA BUCURESTI, FACULTATEA DE FIZICA, DEPARTAMENTUL FIZICA ATMOSFEREI (RO); ADMINISTRATIA NATIONALA DE METEOROLOGIE, GRUPUL DE CERCETARE CLIMATICA (RO)

Affiliation: UNIVERSITATEA BUCURESTI, FACULTATEA DE FIZICA, DEPARTAMENTUL FIZICA ATMOSFEREI (RO)

Project website: https://sites.google.com/site/karsthives/

Abstract:

THE PROJECT PROPOSES AN INTEGRATED APPROACH BASED UPON A MULTI-PROXY ANALYSIS OF THE VARIOUS PALEOCLIMATE ARCHIVES FROM CAVES AND KARST DEPOSITS. OUT OF THESE, THE MOST IMPORTANT ARE THE STABLE ISOTOPES, CHEMICAL (TRACE ELEMENTS), AND MINERALOGICAL VARIATIONS IN SPELEOTHEMS (CALCITE FORMATIONS IN CAVES), MAGNETIC PROPERTIES OF FLUVIATILE OR LACUSTRINE SEDIMENTS, FOSSIL AND SUB-FOSSIL SPECIES AND FAUNAL ASSOCIATIONS, STABLE ISOTOPES AND COMPOSITION OF THE UNDERGROUND ICE ACCUMULATIONS. MOST OF THE ABOVE DEPOSITS BEAR INFORMATION RELEVANT FOR THE PALEOCLIMATE EVOLUTION AT REGIONAL SCALE AND THEIR HIGH-RESOLUTION RADIOMETRIC DATINGS ALLOW SIGNAL CALIBRATION AND COMPARATIVE ANALYSIS OF THE DIFFERENT TIME-SERIES. THE COMBINATION OF THE DATA MEASURED FROM VARIOUS PROXIES FROM CAVE ENVIRONMENT (SPELEOTHEMS, SEDIMENTS, FOSSIL, ICE) WITHIN THE SAME CAVE OR KARST AREA ALLOW: (1) TO OVERCOME THE LIMITATIONS OF SOME DATING METHODS; (2) TO COMBINE DIFFERENT CLIMATE RECORDS INTO A COMPOSITE RECORD; (3) TO CARRY ON TIME-SERIES ANALYSES TAKING INTO ACCOUNT REGIONAL OR GLOBAL CLIMATE RECORDS AND TO IDENTIFY THE REGIONAL CONSTRAINS OF CLIMATE OSCILLATIONS. THE DATA MAY BE CALIBRATED BY ISOTOPE ANALYSIS OF NEWLY-PRECIPITATED CALCITE IN LABORATORY-CAVES CORRELATED WITH THE MONITORING OF BOTH SURFACE WEATHER CONDITIONS AND UNDERGROUND MICROCLIMATE AND PHYSICAL PARAMETERS. THE CONVERSION OF THE VARIATIONS OF ISOTOPE FROM CAVE DEPOSITS INTO VARIATIONS OF TEMPERATURE OR OTHER PARAMETERS (PRECIPITATION SOURCE, VEGETATION COVER, BIOLOGICAL ACTIVITY IN SOIL) ALLOW US VALIDATE AND/OR DEVELOP NEW MODELS FOR ABRUPT CLIMATE OSCILLATIONS AT MILLENNIAL OR CENTENIAL SCALES.

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects