数学建模社区-数学中国

标题: 美赛数据求助！ [打印本页]

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作者: 北海北    时间: 2016-1-21 22:27
标题: 美赛数据求助！
  做一道练习题，结果发现数据不知道从哪里找，从美国地质局找的数据太乱，而且只有1995——2010五年的，有些还不能看
想请教高手指导，哪里可以找美国某个地区的用水量的统计数据，急求！    题目如下：
- V/ h1 J, o" _6 ?+ b) p* ?5 A, @* N    Pipe Dreams

  In recent years Montana and other westernstates have experienced severe drought conditions. Currently large portions ofthe American Southwest are in extreme drought, and some climate models suggestthat these droughts could last decades. As a result, many large cities indrought stricken regions are exploring alternative options for sources of theirwater. Among some of the more popular options for cities are desalination (forcoastal cities), non-potable recycled water (through so-called “purple pipes” systems),and potable recycled water.

Billings is the largestcity in Montana, and is one of the state’s largest industrial centers. Inanticipation of worsening drought conditions and continued growth of the city,the City Council has asked your team to develop a water-recycling planappropriate for Billings. In doing so, they have asked you to:

• Project the expected waterneeds of the city over the next 30 years;

• Compare the costs ofwater treatment under the non-potable versus potable recycling systems(including the building of new facilities and upgrading of existinginfrastructure);

• Make a recommendation for how the cityshould proceed over the next 30 years.

- Z: F/ ~# l) m& P需要Montana州的Billings地区的用水量数据
; |2 z* [+ B% s# ]: F

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作者: 北海北    时间: 2016-1-21 22:28
求大家帮忙啊
2 v9 O/ w( D* ~6 E: Y0 i9 P

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作者: 北海北    时间: 2016-1-21 22:28
求大家帮忙啊

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作者: stuhan    时间: 2016-1-23 15:53
一点头绪都没有，感觉要跪了。。

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作者: 樊朋朋    时间: 2016-1-23 17:20
真的不知道，抱歉

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作者: 北海北    时间: 2016-1-24 08:17

stuhan 发表于 2016-1-23 15:53
8 \( e6 Y$ G2 }5 b& z一点头绪都没有，感觉要跪了。。

差不多啊，Biilinfgs这个地点和实际一点都不符，第一：不缺水，而不干旱，第三：还不是大工业城市。。。。老师出题是故意的还是怎么着

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作者: yyn950824    时间: 2016-1-24 16:53
老师专业坑人
1 D, c# T: @' ]

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作者: 623076115    时间: 2018-1-30 19:20
回帖拿体力 我要下资源

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作者: 516704918    时间: 2019-1-22 20:06
不知道额。。
  [* k1 t, U. F

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作者: 蔡 一凡    时间: 2019-1-22 20:14
回帖拿体力 我要下资源1

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作者: PVALUE    时间: 2019-1-23 22:05

蔡 一凡 发表于 2019-1-22 20:14
回帖拿体力 我要下资源1

东方国际换个卡
& X$ f& K: ~/ g0 y3 A& s

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作者: 702410341    时间: 2019-1-24 15:58

- _) g$ w0 \- n( F回帖拿体力 我要下资源

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作者: duguqqbllyk    时间: 2019-1-24 20:00
666666666666666666666666666
  \5 G; T( `- b& d+ q" d, u' F

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作者: as437496648    时间: 2020-3-5 15:29
回复拿体力，我要下资源。

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作者: 2268039694    时间: 2023-1-2 11:11
同问，哪位大佬可以指点迷津

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