Kian Abbasnezhadi

Kian Abbasnezhadi
Government of Canada · Environment Canada

PhD

About

21
Publications
1,432
Reads
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35
Citations
Additional affiliations
January 2020 - June 2020
Institut National de la Recherche Scientifique
Position
  • PostDoc Position
April 2019 - December 2019
Yukon University
Position
  • Research Associate
January 2019 - March 2019
Hatch Ltd.
Position
  • Researcher

Publications

Publications (21)
Article
A stochastic hydro-geostatistical assessment approach is proposed to evaluate the predictability of streamflow simulation as a function of precipitation observation network density. This approach is based on the paradigm of a controlled data assimilation simulation algorithm, known as Observing System Simulation Experiment (OSSE). The OSSE-based al...
Article
In this study, synchronized gridded precipitation and temperature generators were developed and evaluated in terms of their ability to reconstruct the spatial structure and other statistical properties of high-resolution CaPA (Canadian Precipitation Analysis) precipitation and GEM (Global Environmental Multiscale Model) temperature products. The pr...
Article
A forecasting system combining a physically-based distributed hydrological model (HYDROTEL), an Ensemble Kalman Filtering (EnKF) Data Assimilation (DA), and forecasted meteorological data (obtained from the North American Ensemble Forecast System; NAEFS) is developed to forecast short-range (0–14 days lead) flows and inflows in the Aishihik and May...
Article
Extreme precipitation events, including probable maximum precipitation (PMP) and probable maximum snow accumulation (PMSA) and 1/100 annual exceedance probability (AEP) values for precipitation (P100) and snow accumulation (expressed in snow water equivalent; SWE100) were analyzed over Newfoundland to compute the projected changes from 1971–2000 to...
Article
Sparse precipitation information can result in uncertainties in hydrological modelling practices. Precipitation observation network augmentation is one way to reduce the uncertainty. Meanwhile, in basins with snowpack-dominated hydrology, in the absence of a high-density precipitation observation network, assimilation of in situ and remotely sensed...
Article
Full-text available
In Nordic watersheds, estimation of the dynamics of snow water equivalent (SWE) represents a major step toward a satisfactory modeling of the annual hydrograph. For a multilayer, physically-based snow model like MASiN (Modèle Autonome de Simulation de la Neige), the number of modeled snow layers can affect the accuracy of the simulated SWE. The obj...
Presentation
Full-text available
The applicability of the Canadian Precipitation Analysis products known as the Regional Deterministic Precipitation Analysis (CaPA-RDPA) for hydrological modelling in boreal watersheds in Canada, which are constrained with shortage of precipitation information, has been the subject of a number of recent studies. The northern and mid-cordilleran alp...
Technical Report
The northern and mid-cordilleran alpine, sub-alpine, and boreal watersheds in Yukon, Canada, are prime examples of Nordic regions where any hydrological modelling application is challenging due to lack of accurate distributed precipitation information. In the course of the past few years, proper advancements were tailored to resolve the challenges...
Poster
Full-text available
This study was undertaken to quantify the projected changes related to the impacts of climate change between the 1971-2000 and 2041-2070 periods in the Salmon River basin in Newfoundland with respect to the spring and summer/fall probable maximum precipitation (PMP) and the 1/100 annual exceedance probability (AEP) precipitation (P100), the probabl...
Technical Report
We are presenting our findings based on the climate change sensitivity analysis performed on the meteorological forcing factors driving the probable maximum flood (PMF) projection for the Bay d'Epoir (BDE) hydroelectric system located in the Salmon River basin (SRB) in Newfoundland and Labrador. The forcing factors studied in this project include s...
Presentation
Full-text available
Manitoba (MB) Hydro has invested in the development of physically based hydrological models for the large remote watersheds contributing runoff to its lower Nelson River generating complex. During this process the limited precipitation data network has been identified as an obstacle in the calibration and use of these hydrological models for foreca...
Thesis
Full-text available
The Canadian Precipitation Analysis (CaPA) system has been developed by Environment and Climate Change Canada (ECCC) to optimally combine different sources of information to estimate precipitation accumulation across Canada. The system combines observations from different networks of weather stations and radar measurements with the background infor...
Presentation
Full-text available
A proper knowledge of the spatiotemporal distribution of rainfall is important in order to conduct a mindful investigation of water movement and storage throughout a catchment. Currently, the most accurate precipitation information available for the remote Boreal ecozones of northern Manitoba is coming from the Canadian Precipitation Analysis (CaPA...
Conference Paper
To gain a better understanding of the spatiotemporal distribution of rainfall over the Churchill River basin, this study was undertaken. The research incorporates gridded precipitation data from the Canadian Precipitation Analysis (CaPA) system. CaPA's skill is highly influenced by the number of weather stations in the region of interest as well as...
Presentation
Full-text available
Single-site and multi-site weather generators are common tools in hydrological analysis. More recently there has been an interest in the use of fully gridded stochastic precipitation generators. This introduces a range of new challenges. Precipitation fields are complex and irregular, and are not easy to model. Gaussian random field theory is one o...
Presentation
The Canadian Precipitation Analysis (CaPA) system developed by Environment Canada provides near real-time precipitation estimates on a 10 km by 10 km grid over Canada at a temporal resolution of 6 hours. The spatial fields are generated by combining forecasts from the Global Environmental Multiscale (GEM) model with precipitation observations from...
Presentation
The challenge here was to consider the effect of one factor, referred to as land use, on the hydrologic regime of a catchment, among all the independent, yet integral and dominant factors. Such a distinct approach was applied since land use transformations play an important role in defining the rate of changes streamflow has been posed to under dif...
Technical Report
This essay describes the process of saltwater intrusion into coastal aquifers descriptively together with the most common and well-defined mathematical and numerical models. It also tries to give a summary of the management practices for reducing the hurtful effects of the process, with more insight into the issue along the Atlantic and Pacific coa...
Technical Report
Over the last decades, there have been compelling evidences of climate change caused by natural and anthropogenic factors. Human activities such as the burning of oil and coal have increased the global temperature. This has led to the depletion of the ozone layers and increases in the greenhouse gas emissions. Therefore, there is need to understand...

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