Python在大气与海洋科学中的实践指南

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《Python在大气与海洋科学中的实践入门》是一本由Johnny Wei-Bing Lin编写的教程，专为那些希望了解如何利用Python在大气科学和海洋科学研究中进行实践操作的读者设计。这本书于2012年发布，旨在提供一个动手实践的学习指南，其目标受众包括对Python编程感兴趣但预算有限，或者只需要部分章节内容的科研人员。 Python作为一门强大的通用编程语言，在气象学和海洋学领域中日益受到重视，因为它可以处理大量的数据，执行复杂的模型构建，以及支持可视化分析。作者强调，对于那些无需纸质版全书且仅需电子版本（如彩色PDF，包含功能性超链接）的读者，网站<http://www.johnny-lin.com/pyintro>提供了免费的资源，每一章都有单独的PDF文件可供下载。该书的核心内容可能包括以下几个方面： 1. Python基础：介绍Python语言的基础语法、数据类型、控制结构和函数，确保读者具备基本的编程技能，以便应用于实际问题。 2. 大气科学应用：涵盖Python在气候模型开发、数据获取（如气象卫星数据、地面观测站数据）、气候数据分析（例如时间序列分析、统计建模）等方面的应用实例。 3. 海洋科学实践：讲解如何使用Python处理海洋学数据，如潮汐分析、海洋流场模拟、海洋生态模型等。 4. 代码实践与案例研究：书中可能包含一系列实际项目，通过编写和调试代码，帮助读者掌握如何解决大气和海洋科学中的具体问题。 5. 交互式学习：由于提供彩色PDF版本，书中可能包含可点击的链接，使读者可以直接跳转到相关的在线资源，进一步探索和扩展知识。 6. 版权声明：本书遵循Creative Commons Attribution-Noncommercial-ShareAlike 3.0 United States License（CC BY-NC-SA），这意味着读者可以在非商业用途下分享和修改内容，只要保留原作者的署名和版权声明。如果你是需要纸质版书籍、喜欢彩色PDF并支持作者，或者想要完整购买以支持作者的创作，那么这本书就值得考虑。《Python在大气与海洋科学中的实践入门》是一本实用且免费的资源，适合各种层次的科研人员和爱好者深入学习和实践Python在这些领域的应用。

conditions speciﬁed in Section 108 of the U.S. Copyright Act (17 USC §108,

as revised by P.L. 94-553) does not require the AMS’s permission. Repub-

lication, systematic reproduction, posting in electronic form, such as on a

web site or in a searchable database, or other uses of Lin (2012), except as

exempted by the above statement, requires written permission or a license

from the AMS. Additional details are provided in the AMS Copyright Pol-

icy, available on the AMS Web site located at http://www.ametsoc.org or

from the AMS at 617-227-2425 or copyright@ametsoc.org. Lin (2012) has

been submitted for publication and thus copyright in that work may be trans-

ferred without further notice, and that version may no longer be accessible.

Sprinkled throughout the book are comics from Under the Microscope,

a whimsical look at the world of geoscience, academia, and the meaning

of life, by Dan Johnson and Johnny Lin, and are used by permission. The

comics are available online at http://www.johnny-lin.com/comic. In some

cases, the comics I’ve included are related to the section at hand; in others,

they’re just for fun.

All ﬁgures not created by myself are used by permission and are noted

either in this acknowledgments section or in the respective ﬁgure captions.

Use in this book of information from all other resources is believed to be

covered under Fair Use doctrine.

Other Usage Acknowledgments

The cover image (if a cover is provided) was resized and cropped from an

image taken by the crew of Expedition 23 on-board the International Space

Station (ISS) on May 25, 2010 and shows an edge-on view of the Earth’s at-

mosphere over the Indian Ocean (outer space is to the upper right). The im-

age is provided by the ISS Crew Earth Observations experiment and Image

Science and Analysis Laboratory, at NASA’s Johnson Space Center. The im-

age is available online at http://earthobservatory.nasa.gov/IOTD/view.php?

id=44267 and is not copyrighted.

The dataset of monthly mean surface/near-surface air temperature from

the NCEP/NCAR Reanalysis 1 was taken from NCEP Reanalysis data pro-

vided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA from their

web site at http://www.esrl.noaa.gov/psd.

xii

I am a ﬁrm believer that the only real way you can learn a programming

language is to program in that language—this book has “hands-on” in its title

for a reason ,. As a result, this book is built around examples and exercises

for the reader. I will start oﬀ by discussing a topic, and interspersed with that

discussion will be worked out examples of varying degrees of complexity.

You really have to type in the examples, even if they are worked out and

explained in the text; otherwise, you won’t get much out of the text. After

discussion and examples, I provide exercises that implement the material we

just discussed. Those exercises are also crucial to getting the most out of the

book. In fact, for a number of the exercises, later discussion builds oﬀ of

your attempt (successful or not) at completing the exercise.

All examples and exercises are numbered globally; numbering does not

restart with a new chapter.

Before you start using the book, you’ll want to download the supporting

ﬁles for some of the examples and exercises. In the book, these will the ﬁles

referred to as residing in the directory course ﬁles. This directory of ﬁles is

available online at the book’s website; see p. viii for details on how to obtain

the ﬁles.

Additional notes about the way I wrote this book

Tone: Because I grew up in Seattle and did my undergraduate and graduate

work all in California, I’m a “son of the West” (to misappropriate Tolkien’s

phrase), and so I’ve written this book in a more informal, conversational

tone. (I use contractions and put in smileys ,.) I hope you ﬁnd my voice to

be something of a “tour guide” of Python and that you will be encouraged to

explore and try things out. Ultimately, I think this will make it both easier to

learn Python and more fun.

Repetition: In most academic papers and books, the author will talk

about a topic once and then (often) assume you remember what was said for

the rest of this book. I always found it frustrating when textbook authors fol-

lowed that convention. Repetition is one of the best ways to teach (and learn);

why don’t textbook authors take advantage of this pedagogy? Besides, if I

am a brand-new learner, I probably will not fully understand a concept the

ﬁrst time I hear it. Thus, in this book, I repeat myself, repeatedly. If you

are a naturally gifted programmer, you may ﬁnd this annoying, and I apolo-

gize for annoying you, but then again, I didn’t write this book for naturally

This pedagogy is based on an AMS Board on Continuing Professional Development

template derived from a template by Results Through Training <http://www.RTTWorks.

com>.

xiv

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