scholarly journals Variabilidade e Tendências das Precipitações Pluviais em Rio do Sul – SC

2019 ◽  
Vol 12 (6) ◽  
pp. 1996
Author(s):  
Pedro Murara ◽  
Magaly Mendonça
Keyword(s):  
Present Article ◽  
Rainy Season ◽  
Rainfall Variability ◽  
Winter Season ◽  
Extreme Rainfall ◽  
Summer Season ◽  
The State ◽  
Rainfall Data ◽  
Statistical Techniques ◽  
Santa Catarina

As inundações urbanas compreendem uma das principais problemáticas socionaturais. Conhecer a vulnerabilidade da população atingida pelas inundações é fundamental para a compreensão de ações que visem a mitigar a ocorrência desse fenômeno. Um dos primeiros passos da investigação da vulnerabilidade a inundações é conhecer a dinâmica pluvial da localidade. Nesse contexto, o presente artigo objetivou caracterizar a variabilidade das precipitações pluviais e sua relação com a ocorrência de inundações no município de Rio do Sul, localizado na mesorregião do Vale do Itajaí, no Estado de Santa Catarina. A metodologia envolveu uma intensa análise de dados de precipitações pluviais e registros de inundações, por meio de técnicas estatísticas e aplicação dos índices ClimPACT. Os resultados identificaram a estação de verão como a mais chuvosa e o outono como o período de diminuição nos totais de chuva, no entanto, as chuvas mais intensas ocorrem na estação de inverno, período em que há os maiores registros de inundações. Por fim, evidenciou-se que a região apresentou aumento nos registros dos totais pluviais e tendência à ocorrência de eventos extremos de chuvas.  Variability and Trends of Rainfall Precipitation in Rio do Sul - SC A B S T R A C TUrban floods comprise one of the main socialnatural problems. Knowing the vulnerability of the population affected by floods is fundamental for understanding actions that aim to mitigate the occurrence of this phenomenon. One of the first steps in the investigation of vulnerability to floods is to know the pluvial dynamics of the locality. In this context, the present article aimed to characterize the rainfall variability and its relation with the occurrence of floods in the municipality of Rio do Sul, located in the mesoregion of the Itajaí Valley, in the State of Santa Catarina. The methodology involved an intense analysis of rainfall data and flood records, using statistical techniques and application of the ClimPACT indices. The results identified the summer season as the rainy season and autumn as the period of decline in rainfall totals, however, the most intense rains occur in the winter season, when there are the highest flood records. Finally, it was evidenced that the region presented an increase in rainfall total records and tendency to extreme rainfall events.Keywords: Rainfall, Historic Serie, Software R, ClimPACT.

scholarly journals Physico-chemical properties of Seepage stream at Shripur area, eastern Nepal

2013 ◽  
Vol 2 ◽  
pp. 46-54
Author(s):  
Damodar Thapa Chhetry ◽  
Joydeb Pal
Keyword(s):  
Water Temperature ◽  
Air Temperature ◽  
Rainy Season ◽  
Winter Season ◽  
Chemical Properties ◽  
Summer Season ◽  
Total Alkalinity ◽  
Total Hardness ◽  
First Year ◽  
Physico Chemical

Physico-chemical parameters of the Seepage stream of Shripur area were studied for two years from July, 2002 to June, 2004, once in every month at regular intervals. The maximum air temperature was recorded in rainy season during first year (July, 2002 to June, 2003) and second year study period (July, 2003 to June, 2004). Water temperature was maximum in summer and lowest in winter season. Transparency, total alkalinity, total hardness, chloride were maximum in winter season. Free CO2 and BOD was maximum in summer season. The minimum transparency, total alkalinity, total hardness and chloride were recorded in rainy season. DO and pH were maximum in winter and minimum in summer season during the whole study period. Air temperature, water temperature, free CO2, BOD showed positive and significant correlation with each other. Transparency showed positive and significant correlation with pH, DO, total alkalinity, total hardness and chloride. pH showed positive and significant correlation with DO and chloride. Similarly, DO, total alkalinity, total hardness and chloride showed positive and significant correlation with each other. DOI: http://dx.doi.org/10.3126/njbs.v2i0.7489 Nepalese Journal of Biosciences 2 : 46-54 (2012)

Exploring Temporal Rainfall Variability and Trends Over a Tropical Region Using Tropical Rainfall Measurement Mission (TRMM) and Observatory Data

2021 ◽  
Vol 5 (2) ◽  
pp. 56-71
Author(s):  
Anu David Raj ◽  
K. R. Sooryamol ◽  
Aju David Raj
Keyword(s):  
Time Scales ◽  
Water Resource Management ◽  
Rainfall Variability ◽  
Winter Season ◽  
India Meteorological Department ◽  
Southwest Monsoon ◽  
Rainfall Data ◽  
Tropical Rainfall Measurement Mission ◽  
Tropical Rainfall ◽  
Observatory Data

Kerala is the gateway of the Indian southwest monsoon. The Tropical Rainfall Measurement Mission (TRMM) rainfall data is an efficient approach to rainfall measurement. This study explores the temporal variability in rainfall and trends over Kerala from 1998-2019 using TRMM data and observatory data procured from India Meteorological Department (IMD). Direct comparison with observatory data at various time scales proved the reliability of the TRMM data (monthly, seasonal and annual). The temporal rainfall converted by averaging the data on an annual, monthly and seasonal time scale, and the results have confirmed that the rainfall estimated based on satellite data is dependable. The station wise comparison of rainfall in monsoon season provides satisfactory results. However, estimation of rainfall in mountainous areas is challenging task using the TRMM. In the basins of humid tropical regions, TRMM data can be a valuable source of rainfall data for water resource management and monitoring with some vigilance. In Kerala, the study found an insignificant increase in the southwest monsoon and winter season rainfall during last two decades. The rainfall over Kerala showed uncertainty in the distribution of monthly, seasonal and yearly time scales. This study provides a preview of recent weather patterns that would enable us to make better decisions and improve public policy against climate change.

scholarly journals Local Rainfall Variability - A Potential Bias for Bioecological Studies in the Central Amazon

1984 ◽  
Vol 14 (1-2) ◽  
pp. 159-174 ◽  
Author(s):  
Maria de Nazaré Góes Ribeiro ◽  
Joachim Adis
Keyword(s):  
Rainy Season ◽  
Rainfall Variability ◽  
Dry Season ◽  
Monthly Rainfall ◽  
Rainfall Data ◽  
Annual Precipitation ◽  
Potential Bias ◽  
Central Amazon ◽  
Rainfall Patterns ◽  
Local Rainfall

Rainfall data registered betwe en 1910 and 1979 at Manaus confirm the existence of a dry season between June and November (monthly rainfall: 42-162mm) and a rainy season from December until May (monthly rainfall: 211-300mm). Annual precipitation amounted to 2105mm with about 75% of the rainfall recorded during the rainy season. Rainfall data collected over 12 months at eigth stations in the vicinity of and at Manaus are compared. Annual precipitation was lower in Inundation Regions (1150-2150mm) compared with Dryland Regions (2400-2550mm). Considerable differences are found in rainfall patterns (intensity, frequency and time of rainfall). This is also truefor neighbouring stations, even if data of a 11-year record period are compared. Thus, it is highly recommended that preciptation data for bioecological studies be collected at the study site.

scholarly journals Sistema Faxinal e áreas de caíva: identidades territoriais no espaço agrário da região do Contestado (PR/SC) / Faxinal System and caíva’s areas: territorial identities in the agrarian space in the Contestado region (PR/SC)

2018 ◽  
Vol 28 (53) ◽  
pp. 467-489
Author(s):  
Alcimara Aparecida Föetsch
Keyword(s):  
Present Article ◽  
Political Mobilization ◽  
The State ◽  
Border Region ◽  
Santa Catarina ◽  
Public Power ◽  
Territorial Identity ◽  
Governmental Organizations ◽  
Center Region ◽  
Non Governmental Organizations

Num cenário de mobilização política assiste-se a partir da década de 1980 no Paraná, sobretudo na região Centro-Sul do estado, a (re)construção da identidade territorial faxinalense por meio da atuação de associações, articulações, organizações não governamentais, universidades, movimentos populares e poder público. Em contrapartida, no Planalto Norte de Santa Catarina, região de divisa com o estado paranaense, que compartilha similares características físico-naturais e histórico-geográficas, o Sistema aparenta invisibilidade. Neste destoante e controverso contexto, o presente artigo analisa a territorialidade dos elementos que caracterizam o Sistema Faxinal na região do Contestado, localizada entre os estados do Paraná e Santa Catarina, buscando compreender sua consolidação, desarticulação e reminiscências na perspectiva das identidades territoriais. Para tanto, discute-se a forma com que vêm sendo construída a identidade territorial faxinalense no Paraná e se investiga o que ocorreu com a territorialidade dos elementos que compõem o Sistema em Santa Catarina.Palavras–chave: Sistema Faxinal. Caívas. Identidades Territoriais. Espaço Agrário. Contestado.Abstract In a scenery of political mobilization, it is seen from the 1980s decade in Paraná, especially in the South-Center region of the state, the (re) construction of territorial identity of Faxinal due to the association acting, articulations, non-governmental organizations, universities, popular movements and public power. In contrast, in the Planalto Norte of Santa Catarina, the border region with Paraná state, which shares similar physical-natural, and historical-geographic characteristics, the system presents invisibility. In this aspect and controversial context, this present article analyses the elements territoriality that feature the faxinal System in the Contestado region, located between Paraná and Santa Catarina states, aiming at understanding its consolidation, disarticulation, and reminiscences in the perspective of territorial identities. Therefore, it is discussed the way that the territorial identity has been built on the faxinalense territorial identity in Paraná and it is investigated what occurred with the elements that compound the System territoriality in Santa Catarina.Keywords: Faxinal System. Caíva. Territorial Identities. Agrarian Spaces. Contestado.

scholarly journals Erosive rainfall in Rio do Peixe Valley in Santa Catarina, Brazil: Part I - Determination of the erosivity index

2017 ◽  
Vol 21 (11) ◽  
pp. 774-779
Author(s):  
Álvaro J. Back ◽  
Augusto C. Pola ◽  
Nilzo I. Ladwig ◽  
Hugo Schwalm
Keyword(s):  
Rain Gauge ◽  
The State ◽  
Rainfall Data ◽  
Data Series ◽  
Rainfall Erosivity ◽  
Santa Catarina ◽  
R Factor ◽  
Erosivity Index ◽  
Erosive Rainfall

ABSTRACT This study aimed to determine the rainfall erosivity index in the Valley of Rio do Peixe, in the state of Santa Catarina, Brazil. The data series of three rain gauge stations in the cities of Campos Novos, Videira, and Caçador were used to determine the rainfall erosivity based on the EI30 index and to adjust the equations in order to estimate the EI30 value from the rainfall coefficient. On average, it was observed that erosive rains represents 81.4-88.5% of the annual precipitation. The adjusted equations can be used to estimate rainfall erosivity in locations with only rainfall data. The regional equation specified for the erosivity estimation is EI30 = 74.23 Rc0.8087. The R factor is 8,704.8; 7,340.8; and 6,387.1 MJ mm ha-1 h-1 year-1 for Campos Novos, Videira, and Caçador, respectively. In Campos Novos and Videira, the erosivity was classified as high, while in Caçador, it was classified as average.

scholarly journals Roadkill of animals on the road passing from Kalaburagi to Chincholi, Karnataka, India

2019 ◽  
Vol 11 (7) ◽  
pp. 13868-13874
Author(s):  
Shankerappa Shantveerappa Hatti ◽  
Heena Mubeen
Keyword(s):  
Rainy Season ◽  
Heavy Traffic ◽  
Winter Season ◽  
Iucn Red List ◽  
Summer Season ◽  
The Road ◽  
State Highway ◽  
On The Road ◽  
One Year ◽  
The One

The road passing from Kalaburagi to Chincholi in Karnataka, India, is around 70km and is a state highway having different types of moderately thick vegetation on either side. The animals utilizing this vegetation face huge threats from vehicular traffic, as was observed in recent years. Although this road does not have heavy traffic, there are significant numbers of roadkills. This study was conducted from February 2015 to January 2016. During the one-year period of the study, the mean frequency of heavy vehicles was 154 per day. Among the 283 roadkills recorded, 52 individuals belonged to the class Amphibia, constituting 18.37% of the total roadkills; no amphibian was killed in the summer season whereas 35 and 17 individuals were killed in the rainy season and in the winter season, respectively. Fifty-two individuals belonged to the class Reptilia, constituting 18.37% of the total roadkills; on an average, 10±5.8 individuals were killed in the summer season, 2.5±0.71 in the rainy season, and 3.5±2.12 in the winter season. Sixty-one individuals belonged to the class Aves, constituting 21.55% of the total roadkills; on an average, 5.71±3.03 individuals were killed in the summer season, 2.66±2.08 in the rainy season, and 4.33±3.51 in the winter season. One-hundred-and-eighteen individuals belonged to the class Mammalia, which was the most affected among the roadkills, constituting 41.69% of the total roadkills; on an average, 5.33±5.08 individuals were killed in the summer season, 5±3.9 in the rainy season, and 4.6±2.7 in the winter season. Under the IUCN Red List category, the majority of the species in this study are considered Least Concern and some of them are not even mentioned. The present study helps to know the problems and threats faced by wild animals and is the first work carried out in the region.

scholarly journals Seabather's eruption: report of fourteen cases

2015 ◽  
Vol 87 (1) ◽  
pp. 431-436 ◽  
Author(s):  
ANDRÉ LUIZ ROSSETTO ◽  
FÁBIO LANG DA SILVEIRA ◽  
ANDRÉ CARRARA MORANDINI ◽  
VIDAL HADDAD JUNIOR ◽  
CHARRID RESGALLA JUNIOR
Keyword(s):  
Summer Season ◽  
The State ◽  
Southern Brazil ◽  
Santa Catarina ◽  
Short Period

Seabather's eruption is a papulo-pruritic dermatitis caused by the nematocysts of the larvae of the jellyfish Linuche unguiculata retained in the clothing fibers. Previously reported in Brazil, this work describes fourteen cases that occurred in the State of Santa Catarina, in southern Brazil. The new cases observed over a short period of time (the first half of January, 2012), at the height of the summer season, should alert health teams to possible epidemics on the coast of the state of Santa Catarina.

scholarly journals Watershed-Based Rainfall variability and trends of extreme rainfall events in South East Awash Basin, Ethiopia

2019 ◽  
Vol 6 (6) ◽  
pp. 5524-5530
Author(s):  
Yonas Tadesse Alemu
Keyword(s):  
Coefficient Of Variation ◽  
Rainy Season ◽  
Rainfall Variability ◽  
Extreme Rainfall ◽  
Annual Rainfall ◽  
Extreme Rainfall Events ◽  
Rainfall Events ◽  
Precipitation Distribution ◽  
Precipitation Concentration ◽  
Dire Dawa

This study presents analysis of Rainfall variability and trends of extreme rainfall events in the Oda Gunufeta -Cherecha -Dechatu watershed, Awash Drainage Basin, Eastern Ethiopia. The study employed the coefficient of variation and the Precipitation Concentration Index (PCI) as statistical descriptors of rainfall variability. The indices at the five stations were subjected to non-parametric Mann-Kendall test to detect the trend over the period between 1985 to 2014. The results of the study revealed that, the watershed experiences moderate inter-annual rainfall variability. The Belg rainfall shows high variability than Kiremt rainfall. Highest Belg & Kiremt rainfall variability is observed in Dire Dawa with coefficient of variation of 46% and 40% respectively. The annual PCI for the watershed in all the stations under investigation during the record periods showed that 100% of the years for which the annual PCI was estimated fell within the irregular precipitation distribution range or high precipitation concentration. The irregular precipitation distribution also extended to all the stations in short rainy season (Belg rainfall) and in two stations in the main rainy season (Kiremt season). With regard to the rainfall trend, the annual rainfall has showed a negative trend in most of the stations for the period 1985-2014. The Mann–Kendall trend test during the Kiremt season shows a positive trend in Dengego, Dire Dawa, Combolcha and Haramaya and the increasing tendency is significant at p<0.1 in Degego, p<0.05 in Dire Dawa, p <0.05 in Combolcha and p <0.01 in Haramaya. The heavy rainfall events, the 90th & 95th percentiles, in all the five stations showed an increasing pattern but except in Combolcha the trends are not statistically significant. This implies that the watershed has been under increased rainfall intensity and this in turn has the potential cause for high risk of flood occurrences.

Effects of genetic and environmental factors on productive performances of Hilly Brown Bengal goat at Naikhongchari

2020 ◽  
Vol 26 (02) ◽  
pp. 2192-2203
Author(s):  
M. A. I. Talukder ◽  
M. M. Rahman ◽  
M. A. Alam ◽  
M. A. Hossain ◽  
M. A. Hemayet
Keyword(s):  
Body Weight ◽  
Birth Weight ◽  
Mortality Rate ◽  
Litter Size ◽  
Rainy Season ◽  
Body Weight Gain ◽  
Winter Season ◽  
Summer Season ◽  
Placental Weight ◽  
Litter Weight

The present experiment was studied to investigate the effect of genetic and non-genetic factors on productive performances of Hilly Brown Bengal (HBB) goats at the research farm. For this purpose, initially, a total of 69 does of different generations and 20 bucks and finally, a total of 76 does and 09 bucks were used to study productive parameters of HBB goat. The studied Animals were reared in a semi-intensive management system with natural breeding facilities. Goats were allowed to browse for 6-8 hours and mounting in hills with two times concentrates supplementation @ 1% of their body weight. Here three seasons, three generations were considered and parity was counted up to fifth. The data were statistically analyzed by using least-squares analyses of variance of the general linear model (GLM) procedure of the SPSS, 20.00. Sex of kids was significantly (p<0.05) affect the birth weight of kids, where male kids had higher birth weight (1.24 kg) than female kids (1.15 kg). Kids born in summer season had higher birth weight, litter weight, liter size, placental weight, kidding frequency, fortnightly body weight gain up to 6 months, pre and post-weaning gain with reduced mortality rate. Statistically, in summer season, approximately 11.22% and 3.45% heavier kids born, 9-10 g higher daily gain occurs in pre and post-weaning periods and 900-1100 g higher body weight at 3 months of age were found when compared with rainy and winter season respectively, where rainy season had highest body weight at 6 and 9 months of age. Highest percentage of total kidding (41.61%) was also found in summer season with reduced mortality rate (14%), while the highest mortality (64%) occurred in rainy season. Dams parity had significant (p<0.01) impact on production performances and kids mortality rate, where kids litter weight (1.60 to 2.35 kg), litter size (1.38 to 2.08) and placental weight (246.85 to 263.77 g) were increased linearly with the increment of parity up to four, while kids mortality were reduced from 36.57 to 8.44% with the increment of parity up to 5th. Results suggested that the trends of multiple births (twin and triplet) were increased with the advancement of parity, where twin and triplet kid composition increased linearly from 21 to 68% and 0 to 18% among the total kids born, respectively, while single kid percentage reduced from 79 to 14%. Best productive performances of goats were attained in 1st generation with its highest value of kids’ birth weight, weaning weight, litter weight and litter size. There had significant effect (p<0.01) of birth type on kids birth weight, body weight changes and placental weight, where single kid had 30.85% heavier birth weight than the quadruplet with highest placental weight (219.77 to 257.45 g), while highest dams post-partum weight losses (4.8 kg) occurred in triple kidded does. Reduced kid mortality from 36.56 to 1.76% and 51 to 18% can be obtained with the increment of kids’ birth weight and age, respectively.

scholarly journals Evaluation of Lake Simcoe watershed rainfall characterisics

2021 ◽  
Author(s):  
Rabi C. Gautam
Keyword(s):  
Winter Season ◽  
Daily Rainfall ◽  
Summer Season ◽  
Rainfall Data ◽  
Annual Rainfall ◽  
Initial Analysis ◽  
Daily Rainfall Data ◽  
Average Annual Rainfall ◽  
Increasing Trend ◽  
Lake Simcoe

Lake Simcoe Region Conservation Authority is monitoring the phosphorous loading in Lake Simcoe and to understand the changes in phosphorous loading due to runoff, it is prudent to characterize the rainfall data of the watershed contributing to Lake Simcoe. In this project, hourly and daily rainfall data from 13 different raingage statistics surrounding Lake Simcoe was analyzed to identify event, monthly, seasonal and annual statistics and their trend and thereby to identify the driest and wettest and average annual rainfall. After initial analysis, daily rainfall data from only 4 stations with consistent data for an approximate period of 20 years were chosen for further analysis. The results showed that hydrological year 1995-1996 was the wettest and hydrologic year 1991-1992 was the driest year. Similarly summer season and the month of June were the wettest and winter season and month of February were the driest for the watershed. No significant trend was observed in the yearly and monthly rainfall data while an increasing trend was observed at 3 stations for the winter season.

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