A Study of the Skeena River Climatological Conditions with Particular Reference to their Significance in Sockeye Production

1951 ◽  
Vol 8b (3) ◽  
pp. 178-187 ◽  
Author(s):  
J. R. Brett
Keyword(s):  
Annual Rainfall ◽  
Level Control ◽  
Significant Relation ◽  
River Watershed ◽  
Climatic Variations ◽  
Successful Prediction ◽  
Skeena River

From an analysis of climatological conditions in the Skeena river watershed no climatic variations or cyclic trends which might account for a declining sockeye fishery have been detected.Most of the area in which sockeye spawn has an annual rainfall of less than 20 inches. A significant relation between sockeye production and rainfall in the spawning months of August and September was apparent for the years 1920 to 1934. While successful prediction cannot be anticipated, conservation through stream-level control is supported.

scholarly journals The Economic Impact of Climatic Variations on Ivorian Rice Farming

2020 ◽  
Vol 8 (2) ◽  
pp. 88
Author(s):  
Tite Ehuitché Béké ◽  
Aïssata Sobia
Keyword(s):  
Economic Impact ◽  
Negative Impact ◽  
National Level ◽  
Rice Cultivation ◽  
Annual Rainfall ◽  
Rice Farming ◽  
Switching Regression ◽  
Training Support ◽  
Climatic Variations ◽  
Irrigation Practices

This study analyzes the economic impact of climatic variations on rice cultivation in Côte d'Ivoire. It attempts to respond to the lack of academic study at the national level and then to introduce a new approach that corrects the bias of the traditional Ricardian approach. We estimate an endogenous switching regression model to control for the effect of irrigation using a survey data from a national sample of 895 rice farmers. The results of our estimates show that Ivorian rice cultivation is significantly affected by variations and dispersion of rainfall. The elasticity of farmers’ net income in relation to rainfall is 0.47 in rain-fed systems and 2.89 in irrigated systems. A decrease in the annual rainfall volume affects negatively the yield of farms both in rain-fed and irrigated systems. However, irregular rainfall or greater annual dispersion of precipitation has a negative impact only on the yield of rain-fed farms. Indeed, irrigation practices make it possible to respond effectively to highly dispersed precipitation during the year. The results suggest that farmer training, support services, and irrigation practices are the relevant options to better adapt rice farming to climatic variations.

Influence of Regional Weather Changes on Major Fruit Production and Productivity of Navsari District of Gujarat State, India

2019 ◽  
pp. 1-8
Author(s):  
Shedage Swati ◽  
P. K. Shrivastava ◽  
Narendra Singh
Keyword(s):  
Economic Condition ◽  
National Level ◽  
Fruit Production ◽  
Annual Rainfall ◽  
Mean Annual Temperature ◽  
Significant Relation ◽  
Gujarat State ◽  
Moderate Negative Correlation ◽  
Weather Parameters ◽  
Weather Changes

Horticulture is a priority sector in many states of India as it has potential to improving the socio economic condition of the farmers. Gujarat state is the fourth leading state in fruit production with 9% share at the national level. This study is conducted to correlate major weather parameters with the production of major fruit crops of Navsari district in Southern Gujarat. The study reveals that production and productivity of 4 major fruits (banana, mango, sapota and papaya) has moderate negative correlation with mean annual temperature (MAT) i.e > -50% except the productivity of land under banana. Whereas, it showed very weak negative and non significant relation with total annual Rainfall (TAR). Correlation of all four fruit production ranged between -34 to -53% and -0.7 to -62% for productivity with both MAT and TAR, respectively.

scholarly journals RELATIONSHIP BETWEEN THE STREAMFLOWS AND PRECIPITATIONS IN ITAPEMIRIM RIVER BASIN

FLORESTA ◽  
2019 ◽  
Vol 49 (2) ◽  
pp. 171
Author(s):  
Natalia Gomes de Souza Mendes ◽  
Roberto Avelino Cecílio ◽  
Sidney Sara Zanetti ◽  
Cleber Assis dos Santos
Keyword(s):  
Regression Analysis ◽  
River Basin ◽  
Nonparametric Tests ◽  
Rainfall Amount ◽  
Annual Rainfall ◽  
Annual Maximum ◽  
Annual Streamflow ◽  
Total Rainfall ◽  
River Watershed ◽  
The Relationship

ThThe present paper analyzed the relationship between streamflow and rainfall at the stream of Itapemirim River Watershed (BHRI). The minimum streamflow with duration of seven days (Q7), the average annual streamflow (Qmed) and the annual maximum streamflow (Qmax) of 11 BHRI’s sub-basins were determined. Trends in rainfall and streamflow series were analyzed with Mann-Kandall and Pettitt nonparametric tests. Regression analysis between rainfall and streamflow were established. Results showed no trends on rainfall and Q7 series. Trends in Qmed were found only at one sub-basin and trends in Qmax were found in two sub-basins. The total rainfall was correlated with the streamflow of all the sub-basins. It has been found that annual rainfall amount (Pa) explained considerably variations in Qmed and Q7. Rainfall amounts of the rainiest month (Pmax) showed good correlation to Qmax.

scholarly journals Statistical Analysis of Recent and Future Rainfall and Temperature Variability in the Mono River Watershed (Benin, Togo)

Climate ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 8 ◽  
Author(s):  
Lawin Emmanuel ◽  
Nina Hounguè ◽  
Chabi Biaou ◽  
Djigbo Badou
Keyword(s):  
Climate Model ◽  
Regional Climate ◽  
Standardized Precipitation Index ◽  
Baseline Period ◽  
Annual Rainfall ◽  
Rainfall Regime ◽  
Projection Data ◽  
Monthly Precipitation ◽  
Observation Data ◽  
River Watershed

This paper assessed the current and mid-century trends in rainfall and temperature over the Mono River watershed. It considered observation data for the period 1981–2010 and projection data from the regional climate model (RCM), REMO, for the period 2018–2050 under emission scenarios RCP4.5 and RCP8.5. Rainfall data were interpolated using ordinary kriging. Mann-Kendall, Pettitt and Standardized Normal Homogeneity (SNH) tests were used for trends and break-points detection. Rainfall interannual variability analysis was based on standardized precipitation index (SPI), whereas anomalies indices were considered for temperature. Results revealed that on an annual scale and all over the watershed, temperature and rainfall showed an increasing trend during the observation period. By 2050, both scenarios projected an increase in temperature compared to the baseline period 1981–2010, whereas annual rainfall will be characterized by high variabilities. Rainfall seasonal cycle is expected to change in the watershed: In the south, the second rainfall peak, which usually occurs in September, will be extended to October with a higher value. In the central and northern parts, rainfall regime is projected to be characterized by late onsets, a peak in September and lower precipitation until June and higher thereafter. The highest increase and decrease in monthly precipitation are expected in the northern part of the watershed. Therefore, identifying relevant adaptation strategies is recommended.

scholarly journals Solar Powered Smart Irrigation System with GSM for Agriculture

2021 ◽  
Vol 9 (VI) ◽  
pp. 643-648
Author(s):  
Niketan B. Dandhare
Keyword(s):  
Water Level ◽  
Agricultural Sector ◽  
Irrigation System ◽  
Weather Conditions ◽  
Text Messages ◽  
Annual Rainfall ◽  
Level Control ◽  
Moisture Condition ◽  
Soil Moisture Condition ◽  
Level Sensor

Most of the Indian people are dependent on agriculture and for this reason our country’s economy is mainly dependent on agriculture, so efficient agriculture requires proper irrigation and can improve our country’s economy accordingly. We can achieve this with the help of various electronic devices and through its use we can get proper irrigation in this field in an automated manner. Project Irrigation and Water Level Control using AT89S52 designed to address agricultural sector issues related to irrigation and water monitoring systems with available water resources. Prolonged periods of dry weather conditions due to fluctuations in annual rainfall can significantly reduce agricultural yields. Profiteering companies need an efficient irrigation system as their intolerance to the cost and drought of establishing these crops. On this project we're the usage of AT89s52 (8051 microcontroller), humidity sensor, dc water pump, relay driving force, level sensor, gsm modem, sun panel, battery etc. A sprinkler turns on / off depending on soil moisture condition and condition. The motor can be displayed in text messages via the GSM model on a 16X2 LCD. Also, the water level can be monitored by level sensors. It helps to know the availability of water at the input source

Striae Gravidarum, Vitamin C and Other Related Factors

2011 ◽  
Vol 81 (1) ◽  
pp. 43-48 ◽  
Author(s):  
Rahime Bedir Findik ◽  
Nurcihan Karakurt Hascelik ◽  
Kadir Okhan Akin ◽  
Ayse Nurcan Unluer ◽  
Jale Karakaya
Keyword(s):  
Family History ◽  
Vitamin C ◽  
Pregnant Women ◽  
Smoking Status ◽  
Multiple Logistic Regression Analysis ◽  
Blood Levels ◽  
Significant Relation ◽  
Related Factors ◽  
Thigh Circumference ◽  
Striae Gravidarum

Background: Striae gravidarum, a clinical condition commonly seen in pregnant women, produces serious cosmetic problems and may lead to psychological problems. Aim: The present study investigated whether there was any relation between the presence of striae in primigravid pregnant women and blood vitamin C levels, and factors thought to contribute to the formation of striae such as family history, weight gained during pregnancy, smoking status, abdominal and thigh circumference, and age. Methods: Overall, 69 primigravid women attending routine antenatal follow-up and, using prophylactic iron and vitamin preparations, underwent investigation. All were pregnant 36 or more weeks. Scoring was based on striae examination and whether striae were present. The relation between the presence of striae, vitamin C blood levels, and other factors was investigated. Results and Conclusions: Multiple logistic regression analysis showed a significant relation between the presence of striae and blood vitamin C levels (p = 0.046) and between the presence of striae and family history (p = 0.023). No significant relation was found between the presence of striae and age, weight gained during pregnancy, abdominal and thigh circumference, or smoking status. It was concluded that further, more comprehensive studies on the issue are required.

Larval Behavior and Protective Implications for Sea Scallops and Surf Clams within the Middle Atlantic Bight: Part Two, Variability of Physical Environment and Larval Behaviors

2019 ◽  
Vol 2 (2) ◽  
Keyword(s):  
Physical Environment ◽  
Climate Changes ◽  
Larval Growth ◽  
Growth Patterns ◽  
Larval Behavior ◽  
Larval Release ◽  
Physical Conditions ◽  
Climatic Variations ◽  
Middle Atlantic ◽  
Sea Scallops

Larval growth and settlement rates are important larval behaviors for larval protections. The variability of larval growthsettlement rates and physical conditions for 2006-2012 and in the future with potential climate changes was studied using the coupling ROMS-IMBs, and new temperature and current indexes. Forty-four experimental cases were conducted for larval growth patterns and release mechanisms, showing the spatial, seasonal, annual, and climatic variations of larval growthsettlement rates and physical conditions, demonstrating that the slight different larval temperature-adaption and larval release strategies made difference in larval growth-settlement rates, and displaying that larval growth and settlement rates highly depended upon physical conditions and were vulnerable to climate changes.

THE ROLE OF GRASSLAND IN MANAGEMENT

1968 ◽  
pp. 44-49
Author(s):  
B.K. Cameron
Keyword(s):  
Soil Temperature ◽  
Annual Rainfall ◽  
Silt Loam ◽  
Average Annual Rainfall ◽  
Very High ◽  
Wilting Point

THE PROPERTY to be discussed is a mixed sheep and cropping unit, situated ei ht a miles east of Ashburton and midway between the Ra aia and the Ashburton rivers. Average annual rainfall is 27 in., evenly spread, but there is very high summer evaporation and therefore frequent droughts. On average, the soil is below wilting point for 40 to 50 days each summer. Winters are cold with the soil temperature being below 48°F for about four months each year. The soil is a Lismore stony silt loam averaging 9 in. in depth over gravel.

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