Article
Green & Sustainable Science & Technology
Ismallianto Isia, Tony Hadibarata, Muhammad Noor Hazwan Jusoh, Rajib Kumar Bhattacharjya, Noor Fifinatasha Shahedan, Aissa Bouaissi, Norma Latif Fitriyani, Muhammad Syafrudin
Summary: Drought analysis using SPI and SPEI is crucial for water resource management in Sarawak, Malaysia. Both rainfall and temperature are important indicators for drought, and the SPI and SPEI can effectively detect temporal variations of drought with different time scales. The SPEI, considering both precipitation and evapotranspiration data, can identify more severe and longer-lasting droughts compared to the SPI. Temperature plays a decisive role in drought classification, and the SPI is recommended only when temperature data is unavailable.
Article
Multidisciplinary Sciences
Changhong Liu, Cuiping Yang, Qi Yang, Jiao Wang
Summary: Drought in Sichuan Province shows differences in characteristics between different physiognomy types, with increasing intensity in the western region mainly concentrated in the Sichuan basin. Altitude is not the main factor causing spatial unevenness of precipitation in Sichuan Province, as altitude, temperature, longitude, and latitude jointly determine precipitation distribution.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Civil
Johannes Laimighofer, Gregor Laaha
Summary: This paper quantifies the uncertainty of standardized drought indices (SPI and SPEI) based on an Austrian dataset and finds that the computational variations of these indices lead to highly variable results. The choice of distribution and observational window are the main sources of uncertainty, while parameter estimation method and GOF-tests have almost no effect. Overall, the uncertainty of standardized drought indices is substantial.
JOURNAL OF HYDROLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Patricia Pascoa, Ana Russo, Celia M. Gouveia, Pedro M. M. Soares, Rita M. Cardoso, Joao A. M. Careto, Andreia F. S. Ribeiro
Summary: Droughts are a significant long-term weather phenomenon with great socio-economic impacts, particularly in regions like the Mediterranean and the Iberian Peninsula. With the changing climate and rising temperatures, extreme events, including droughts, are expected to increase in frequency and intensity. The use of high-resolution datasets is crucial in identifying complex patterns of drought trends in different regions.
WEATHER AND CLIMATE EXTREMES
(2021)
Article
Geosciences, Multidisciplinary
Jean Moussa Kourouma, Emmanuel Eze, Goitom Kelem, Emnet Negash, Darius Phiri, Royd Vinya, Atkilt Girma, Amanuel Zenebe
Summary: This study investigates the spatiotemporal patterns of drought characteristics in Ethiopia using monthly rainfall and temperature data from 1983 to 2020. The findings reveal that although Ethiopia is a drought-prone country, the frequency, magnitude, and severity of drought vary across regions. The northeastern, eastern, northwestern, and southeastern parts of the country are more vulnerable to drought.
GEOMATICS NATURAL HAZARDS & RISK
(2022)
Article
Ecology
A. Alkan, M. Tombul
Summary: This study analyzed the drought situation in the Seyhan and Ceyhan basins in Turkey using the Standardized Precipitation Index (SPI) and Standardized Precipitation Evapotranspiration Index (SPEI). The results indicated an increase in drought periods in the basins over the past decade, posing a risk of drought in the region.
APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH
(2022)
Article
Water Resources
David J. Peres, Brunella Bonaccorso, Nunziarita Palazzolo, Antonino Cancelliere, Giuseppe Mendicino, Alfonso Senatore
Summary: In this study, a dynamic approach is introduced to assess the impact of future climate change on drought. The results indicate that Southern Italy is likely to experience an increase in drought events due to climate change. The findings highlight the need for revised drought identification strategies that account for non-stationarity in climate.
HYDROLOGICAL SCIENCES JOURNAL
(2023)
Article
Environmental Sciences
Tiago Silva, Vanda Pires, Tania Cota, Alvaro Silva
Summary: Due to the lack of a general drought definition, different drought indices have been developed and used. Research in Portugal suggests that drought situations are more frequent and severe than wet periods. The SPI model is more sensitive to extreme drought events, while the PDSI, scPDSI and SPEI are more reliable for medium and long-term drought monitoring.
Article
Agronomy
M. H. Afshar, B. Bulut, E. Duzenli, M. Amjad, M. T. Yilmaz
Summary: In this study, the consistency between meteorological and soil moisture drought indices was analyzed. The most consistent meteorological drought index with soil moisture drought index was identified as the best representative. The results showed that different meteorological drought indices have varying levels of correlation with soil moisture drought index in different climate and land use conditions. The K-Nearest Neighbor method was found to be the most effective in identifying the most correlated meteorological drought index with soil moisture drought index.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Article
Environmental Sciences
Jesus Rascon, Wildor Gosgot Angeles, Lenin Quinones Huatangari, Manuel Oliva, Miguel angel Barrena Gurbillon
Summary: The study in Chachapoyas from 1981 to 2019 using SPI and SPEI indices revealed occurrences of drought and wet events, with a high correlation between the indices at different timescales. In recent years, there has been an increase in extreme wet events in the region.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Article
Water Resources
Hana Salimi, Esmail Asadi, Sabereh Darbandi
Summary: This study focused on analyzing meteorological drought using SPI and SPEI, as well as exploring hydrological drought with SSI. The research found that climate change has a significant impact on drought characteristics, with differences observed in drought characteristics across different climatic regions. Additionally, the study identified accurate relationships between drought duration and severity, with the highest accuracy observed in a 9-month period in the Navroud watershed basin.
APPLIED WATER SCIENCE
(2021)
Article
Mathematics, Interdisciplinary Applications
Rizwan Niaz, Fahad Tanveer, Mohammed M. A. Almazah, Ijaz Hussain, Soliman Alkhatib, A. Y. Al-Razami
Summary: Drought is a gradual and long-lasting phenomenon with negative impacts on communities and environments. Comprehensive assessment techniques and methods are necessary to reduce vulnerability to drought. This study introduces a new method for regional assessment of meteorological drought that provides comprehensive information.
Article
Engineering, Aerospace
Leire Retegui Schiettekatte, Maria Selmira Garrido, Maria Clara de Lacy
Summary: This study computed the Standardized Precipitation Conversion Index (SPCI) using GNSS and ERA5 PWV data in Southern Spain and tested its performance compared to the Standardized Precipitation Evapotranspiration Index (SPEI). The results showed that SPCI has potential for drought monitoring, especially on longer timescales.
ADVANCES IN SPACE RESEARCH
(2023)
Article
Meteorology & Atmospheric Sciences
Xiaomei Peng, Bao Yang, Shengchun Xiao, Jingjing Liu, Gang Li
Summary: By analyzing data from 43 meteorological stations in northwest China, it was found that there is a correlation between hydroclimate changes in the Mt. Qilian and the Alxa desert, particularly in terms of precipitation and relative humidity. Tree-ring records from the mountains were used to validate the faithful representation of hydroclimatic history in the desert area.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Agronomy
Hai Nguyen, Allen Thompson, Christine Costello
Summary: The trend of drought-induced yield losses in U.S. agriculture has been increasing despite financial investments and technological development. Evaluating drought impacts on crop production is crucial as climate change worsens drought conditions. This study assessed the effectiveness of modified Standardized Precipitation Indices (SPIs) and Standardized Precipitation Evapotranspiration Index (SPEI) in evaluating drought impacts on maize and soybean yields in the southeastern U.S. Results showed that the modified SPI can be as effective as SPEI in assessing drought impacts. Drought events during critical growth stages significantly affected yield variability, and irrigation reduced the sensitivity to drought.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Meteorology & Atmospheric Sciences
Ewa Bednorz, Bartosz Czernecki, Arkadiusz M. Tomczyk
Summary: This study describes heavy snowfall events possibly caused by sea-effect on the southern Baltic Sea coast. The analysis identifies high-pressure and low-pressure systems as well as temperature differences as key factors in the occurrence of sea-effect snowfall. Three detailed cases are analyzed, revealing the formation mechanisms of sea-effect snowfall.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Arkadiusz Marek Tomczyk, Mikolaj Piniewski, Mohammad Reza Eini, Ewa Bednorz
Summary: The study found that the maximum air temperature in summer in Poland has been increasing over the past few decades, with a more significant increase in the last 20 years. Model projections suggest that this trend will continue in the near and far future, leading to an increase in the number of hot days, especially in areas with moderate temperature changes.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Jasik Michal, Ziemblinska Klaudia, Urbaniak Marek, Olejnik Janusz, Skorupski Maciej, Malek Stanislaw
Summary: The aim of this research was to evaluate the changes in ecochemical indices in rainwater passing through tree canopies and penetrating soils, and it was found that introducing beech undergrowth in pine stands may lead to increased soil acidification.
Article
Biodiversity Conservation
Karol Przezdziecki, Jaroslaw J. Zawadzki, Marek Urbaniak, Klaudia Ziemblinska, Zygmunt Miatkowski
Summary: The LST-VI scatterplot is a fundamental concept of the TVDI, a widely used drought index considering evaporation in heterogeneous areas. The advantage of using TVDI is its reflection of soil moisture conditions rather than volumetric soil moisture itself. However, it has not been satisfactory enough for forest areas. A limitation of using TVDI is the need for collecting LST and VI data from heterogeneous areas, which can be challenging.
ECOLOGICAL INDICATORS
(2023)
Article
Forestry
Paulina Dukat, Klaudia Ziemblinska, Matti Rasanen, Timo Vesala, Janusz Olejnik, Marek Urbaniak
Summary: This study investigates the impact of drought on the functioning of Scots pine forests in Poland. The results show that Scots pine in north-western and central Poland is experiencing intensified water deficits and lower precipitation. The study suggests that non-stomatal water losses play an important role in extreme dry conditions.
EUROPEAN JOURNAL OF FOREST RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Zbigniew W. Kundzewicz, Adam Chorynski, Janusz Olejnik, Hans J. Schellnhuber, Marek Urbaniak, Klaudia Ziemblinska
Summary: The debate on global climate change has divided societies. Individual attitudes towards the anthropogenic nature of climate change and the need for mitigation efforts are influenced by various factors. Given the severe and borderless consequences of climate change, it is important to examine the relationship between scientific findings and climate policies.
Article
Energy & Fuels
Zbigniew W. Kundzewicz, Janusz Olejnik, Marek Urbaniak, Klaudia Ziemblinska
Summary: Forest ecosystems serve as significant carbon sinks on a global scale, sequestering large quantities of carbon. This makes them crucial in mitigating climate change by removing carbon dioxide from the atmosphere. In this study, the potential of carbon storage in forest biomass and wood products in Poland, as well as the impact of disturbances, is examined.
Article
Geography
Arkadiusz M. Tomczyk, Ewa Bednorz, Katarzyna Szyga-Pluta, Malgorzata Owczarek
Summary: This study focuses on determining the characteristics of bioclimatic conditions and synoptic situations associated with thermal stress in Poland. Daily data from 37 synoptic stations in Poland from 1966-2020 were used to calculate the Universal Thermal Climate Index (UTCI). The results indicate that heat stress increases from north to south and is influenced by smaller-scale factors, with the cooling effect of the Baltic Sea waters being evident.
QUAESTIONES GEOGRAPHICAE
(2023)
Article
Geography
Katarzyna Szyga-Pluta, Arkadiusz M. M. Tomczyk, Katarzyna Piotrowicz, Ewa Bednorz
Summary: The research found patterns in the changes of start and end dates, as well as the length of growing season in Central Europe from the late 19th century to 2020 in selected cities. The start dates of the growing season showed high year-to-year variability, especially in southern cities like Prague and Vienna. The variability in the end dates was lower. The growing season has generally become longer, but the changes varied among cities.
QUAESTIONES GEOGRAPHICAE
(2023)
