数学建模美赛练习latex排版

rivers. Lake Mead’s water levels are falling due to droughts caused by climate change and in-

equation based on the water level data of the most recent dry period in 2021 and a difference

equation based on the monthly water level changes from 2005 to 2020, to determine The dry

period of Lake Mead and analysis of its overall water level pattern, forecast the future water level

changes in 2025, 2030 and 2050, and analyze and evaluate our two models, found that the latter

is more accurate, and from the two models can be It can be seen that the water level in the future

is generally lower than the water level in previous years.

decreasing, and wastewater recycling and reuse is an effective water recycling measure. Taking

into account the decisions local leaders may make and the priorities that will influence our plan-

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1 Introduction 3

2 Analysis of the Problem 3

3 Calculating and Simplifying the Model 4

7 Strengths and weaknesses 17

Appendices 18

Appendix A First appendix 18

Appendix B Second appendix 19

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1 Introduction

1.1 Other Assumptions

1. It is assumed that the direct factors affecting the water level of Lake Mead are related

to meteorological, human and biological activities.

2 Analysis of the Problem

In 2021, with Lake Mead reaching a record low and the reservoir shrunk to 36the Bureau

of Reclamation declared Colorado water shortage. This situation will lead to a reduction

recycling is investigated and researched, and wastewater recycling is considered as a

solution to water shortages.

volume change in Lake Mead was inferred, and the influencing factors were explored.

wastewater recycling efficiency and the policies of local leaders, and finally specifying a

wastewater recycling plan and evaluation criteria.

2.1 Analysis of problem 1

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tion, analyze the factors from three aspects of meteorology, human activities and biolog-

ical activities, and analyze the relationship between these factors and the inflow, outflow

and The direction of the impact of the loss. After the model is established, the three

factors of meteorology, biology and human activities are used to bring into the functional

1074.415, 1074.073, and 1074.052 with the average annual water level as a reference.

The dry period under Model 2 is about March to September. For the convenience of

presentation , taking the average annual water level as a reference, the water levels are

1090.359, 1090.451, and 1090.457.

2.3 Analysis of problem 3

level in Lake Mead means that water resources are decreasing, and wastewater recycling

and reuse is an effective water recycling measure, while adhering to sustainability and

safety The principle of recycling, treatment and application of wastewater. In order to

visualize the impact of plan implementation, consider using GIS visualization technol-

3.1 Solution of problem 1

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ogy, human activities and biological activities. Lake Mead is at 36.14°N, 114.41°W, on

the border of Arizona and Nevada.The global warming trend is rising, and the precipita-

tion of inland lakes continues to decline, resulting in a large water resource decrease in

inland lakes and a continuous increase in the area of deserts.

portant factors are precipitation and temperature. Precipitation mainly affects the inflow

of Lake Mead, temperature mainly affects the evaporation of Lake Mead. By observing