Two works at International SWAT Conference (Aarhus, Dinamarca)

Fri, 07 Jul 2023 00:00:00 +0000

During the week of June 26th to 30th, 2023, I participated in the International Conference , held at the (Aarhus Denmark). This is a small conference, aimed at all scientists working with the worldwide. On this occasion, more than 170 scientists from 41 countries on six continents participated.

I participated as co-author in one paper and presented another:

. In this work, the Master’s candidate Rodrigo Marinao Rivas presented to the eco-hydrological model user community. is a new package for multi-objective calibration, which combines two search mechanisms to maintain population diversity and accelerate its convergence towards the Pareto optimal front. is model-independent, allowing the calibration engine to interact with any type of model that needs to be run from the command line, including SWAT and SWAT+, but also other hydrological models available in R (eg, , , ). In addition, is independent of the operating system used (i.e. it can run on GNU/Linux, Mac OSX and Windows, among others) and can run on multi-core machines or network clusters, which significantly alleviates the load computational associated with the optimization of complex models with long execution times.
. In this paper, Dr. Zambrano-Bigiarini presented an application of the multi-objective calibration software to the eco-hydrological model implemented in the Trancura River Basin before Llafenco (Araucanía Region). In this work, two cases of multi-objective calibration were analyzed. In the first case study, the SWAT+ model was simultaneously calibrated for two time periods: one with normal/wet conditions and one with dry conditions (i.e., below-normal rainfall). In the second case study, daily flows at the outlet of the basin and average monthly real evapotranspiration throughout the basin were calibrated simultaneously. The package has been developed by Civil Engineer Rodrigo Marinao, who is a graduate of Civil Engineering at the Universidad de la Frontera, a student of the Master’s Degree in Engineering Sciences from the same university, and a research assistant at the Center for Climate and Resilience Research (CR2). The collaboration between Rodrigo Marinao and I began from the Hydrology course in the Civil Engineering degree, and has continued uninterrupted since then. This work also received funding from the .

Finally, during this conference, I took the opportunity to clarify doubts about the implementation of the growth of some plant species typical of Chile, learn about the latest advances in the development of the model (e.g., , , ), and possibilities of collaboration with doctoral candidate from the .

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Four works at EGU 2023

Tue, 02 May 2023 00:00:00 +0000

During the week of April 24 to 28, 2023, I participated in the , held in the city of Wien (Austria). On this occasion, I presented two works and participated in other two:

. In this work, I presented , a new package for the that is about to be submitted to . This package expands the functions of the terra package to work with gridded data that has a time attribute. In particular, hydroRTS allows you to work efficiently with large amounts of gridded data that have an hourly, daily, monthly, or annual time frequency. This work summarizes a large amount of work that I has done since 2013. However, only the collaboration of Civil Engineer Sebastián Bernal, graduated in 2022 from Civil Engineering at the Universidad de la Frontera, allowed to systematically organize and adequately document a set of functions that are useful for the Hydrological and Earth Sciences community worldwide. This collaboration was only possible thanks to funding provided by the .
. In this work, I presented to the international community an application of , an package for global multi-objective optimization. In this work, two cases of multi-objective calibration of the SWAT+ semi-distributed hydrological model in the Trancura River Basin before Llafenco (Araucanía Region) were analyzed. In the first case study, the SWAT+ model was simultaneously calibrated for two time periods: one with normal/wet conditions and one with dry conditions (i.e., below-normal rainfall). In the second case study, daily flows at the outlet of the basin and average monthly real evapotranspiration throughout the basin were calibrated simultaneously. This package has been developed by Civil Engineer Rodrigo Marinao, who is a graduate of Civil Engineering at the Universidad de la Frontera, a student of the from the same university, and a research assistant at the . The collaboration between the Marine Engineer and I began from the Hydrology course in the Civil Engineering degree, and has continued uninterrupted since then. This work also received funding from the .
. In this paper, Dr. Oscar Baez-Villanueva (TH Köln, Germany) presented a paper that analyzes which meteorological drought indices (SPI, SPEI), soil moisture (ESSMI) or snow (SSWEI) are more related to the occurrence of hydrological drought (SSI-1), based on the hydrological regime (i.e., pluvial, pluvio-nival, nivo-pluvial, nival) of 100 basins of Central-South Chile. This work has been carried out in collaboration with me within the framework of the project “Drought and water security platform for catchment planning: historical evolution and future trajectories under global change”, financed by ANID in the Rapid Assignment Contest Fondo de Strategic Research in Drought for the year 2021, whose director is Dr. Camila Álvarez Garreón (CR2).
. In this paper, Fabian Lema, a Master’s candidate at the , presented a paper where the characteristics of drought events in six basins of Central-South Chile are analyzed, both for a historical period and for a future period. Dr. Pablo Mendoza from the University of Chile invited I to participate in this work thanks to his collaboration as an evaluating member of Fabián Lema’s Master’s thesis.

Finally, during this conference, I took the opportunity to discuss, among other things, postgraduate collaboration possibilities with from the (USA) and to talk about a joint article with Dr. Oscar Baez-Villanueva from the (Germany) and with from the (Arabia Saudita).

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Swat | Dr. Mauricio Zambrano-Bigiarini

Two works at International SWAT Conference (Aarhus, Dinamarca)

Four works at EGU 2023