Milestone three Weather Analysis

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Southern New Hampshire University *

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103

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Geography

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Dec 6, 2023

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Emily Durkin PHY 103 10/8/2023 6-2 Final Project Milestone Three: Weather Analysis

The proposed development site is in a region with a humid subtropical climate. The climate is characterized by warm summers, mild winters, and high humidity throughout the year. This report analyzes the climate and the weather of the development site, using the weather data and chirographs provided by the U.S Geological Survey (USGS). Average Annual Temperature and Precipitation Means (USGS Surface water Data for USA: USGS Surface-Water Monthly Statistics, n.d): According to the chirograph, the average annual temperature in the region is around 75 degrees Fahrenheit, while the average annual precipitation is about 60 inches. There are distinct seasonal variations in precipitation, with higher precipitation levels during the summer and lower precipitation during the winter months. These seasonal variations can be due to the polar front theory, which explains that the collision of warm and cold air masses near the polar front causes’ cyclogenesis, leading to increased precipitation. Types of Storms Affecting the Area: The most prevalent types of storms that affect the area are thunderstorms and tropical cyclones. Thunderstorms are more common during the summer, and usually have lightning, heavy rainfall, and strong winds. Tropical cyclones, including hurricanes and typhoons, are more common during the late summer and early fall. These storms can create heavy rainfall, strong winds, and storm surges, which can cause significant damage to infrastructure and property. Maximum Precipitation Event: The maximum precipitation event in the historical record occurred on November 2 nd , 1917, with a total precipitation amount of 12.09 inches. This event was caused by a severe thunderstorm, which produced heavy rainfall and flash flooding in the region.

Recurrence Interval of Extreme Precipitation Events: To calculate the recurrence interval of extreme precipitation events, we can use the method of simple recurrence interval. The formula for this is: Recurrence interval = (n+1)/m. Where n is the number of years in the record and m is the rank of the event. Using this formula, we can calculate the recurrence interval for the maximum precipitation even as follows: Recurrence interval = (74+1)/1 = 75 years. This means that an extreme precipitation event of this magnitude can be expected to occur once every 75 years. Impact on Stream Discharge, Surrounding Landscape, and Proposed Development: Seasonal and extreme precipitation events can have a significant impact on stream discharge and the surrounding landscape. During periods of high precipitation, flooding and erosion can increase quickly. This can result in damage to infrastructure and property, as well as loss of life. In addition, extreme precipitation events can cause landslides and other slope failures. The proposed development may be impacted by seasonal and extreme precipitation events in several ways. Flooding and erosion can damage infrastructure and property, leading to increased maintenance costs and repair work. Landslides and slope failures can affect the stability of the land, making it more difficult and costly to construct buildings and other structures. The proposed development may need to incorporate measures to mitigate the impacts of extreme precipitation events, such as stormwater management systems and erosion control measures. In conclusion, the proposed development site is in a region with a humid subtropical climate, characterized by warm summers, mild winters, and high humidity throughout the year. The most dangerous storms that affect this region are thunderstorms and tropical cyclones. Stormwater management systems, erosion control measures, and slope stabilization techniques may need to be incorporated into the design of the development to control the risks associated

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with precipitation events. In addition, it may be necessary to create early warning systems and emergency response plans to ensure the safety of the residents in the event of extreme weather conditions. By considering the climatic and weather elements of the region, the proposed development can be designed to be resilient and sustainable, minimizing the potential impacts and ensuring the long-term viability of the project. References Login. (n.d.). https://view.officeapps.live.com/op/view.aspx?src=http%3A%2F%2Fsnhu-media.snhu.edu%2Ffiles %2Fcourse_repository%2Fundergraduate%2Fphy %2Fphy103%2Fphy103_final_project_historical_data.docx&wdOrigin=BROWSELINK Snhu-media.snhu.edu. (n.d.). http://snhu- media.snhu.edu/files/course_repository/undergraduate/phy/phy103/phy103_final_project_historical_data.doc x USGS Surface Water Data for USA: USGS surface-water monthly statistics. (n.d.). https://waterdata.usgs.gov/nwis/monthly/?referred_module=sw

Milestone three Weather Analysis

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