The Atmospheric and Oceanic Sciences (ATOC) Bachelor of Science degree is for students interested in an in-depth understanding of the physical basis for the role of the atmosphere and oceans in Earth's climate system. An ATOC degree will prepare students to pursue a wide range of careers in areas as diverse as the energy sector, insurance, military, air and water quality monitoring, weather and aerospace industries. It will provide a solid foundation for advanced degrees in the atmospheric and oceanic sciences and for professions in scientific research and academia.

ATOC's curriculum responds to demands of current students for more interactive learning opportunities and to demands of employers for graduates who have been trained to provide quantitative solutions to real-world problems. It is designed to provide students with a core set of knowledge and skills related to atmospheric and oceanic sciences and to engage students in hands-on, interactive learning early and often. To that end, it requires students to take several "methods" courses that emphasize quantitative problem-solving by focusing on some combination of data analysis, observations and/or modeling; all of these courses incorporate some level of computer programming or scientific computing. ATOC strongly recommends that every student have a laptop computer if it is financially feasible. Students who intend to purchase a computer and wish to have its cost included in their financial aid calculations are strongly encouraged to consult the Office of Financial Aid before purchase.

ATOC's curriculum is also designed to take advantage of CU Boulder's unique position as a university in the center of a world-renowned mecca for earth system science. Scientists from the local community contribute their expertise to the ATOC curriculum, particularly in the interactive methods courses, and mentor seniors in their thesis research.

Requirements 

Graduation with a BS in Atmospheric and Oceanic Sciences will require the completion of the curriculum presented below, consisting of 120 credit hours passed with a cumulative grade point average of 2.000 or higher. Grades of C- or better will be required in all ATOC courses.

The requirements for the ATOC major include 34 credits of ancillary science and mathematics, 21 credits of core atmospheric and oceanic science courses, 12 credits of methods in atmospheric and oceanic sciences, and 12 credits of designated upper division electives. All ATOC courses and all required ancillary courses must be passed with a C- or better.

Required Courses and Credits

ATOC Major Requirements

Introductory Atmospheric and Oceanic Sciences Requirement
Select one of the following:3
Weather and the Atmosphere
Our Changing Environment: El Nino, Ozone, and Climate
Introduction to Atmospheric Research
Special Topics in Atmospheric and Oceanic Sciences - Lower Division
First Year Seminar (ATOC offered sections)
Core Atmospheric and Oceanic Sciences Requirements
Select three of the following courses: 9
Principles of Weather
Introduction to Oceanography
Analysis of Climate and Weather Observations
Course-Based ATOC Research Experience
Air Chemistry and Pollution
Principles of Climate
Fundamentals of Atmospheric and Oceanic Sciences
Select three of the following courses: 9
Biogeochemical Oceanography
Introduction to Atmospheric Physics
Atmospheric Dynamics
Physical Oceanography and Climate
Methods in Atmospheric and Oceanic Sciences 1
Select 12 credit hours of the following, 6 of which can be from independent research (ATOC 4900, ATOC 4950 or ATOC 4990). Some courses offered as ATOC 4500 Special Topics may satisfy this requirement.12
Special Topics in Atmospheric and Oceanic Sciences - Upper Division (Choose from the following: topics: Weather Modeling Lab, Instrument Lab, Remote Sensing, Field Observations and Measurements, Numerical Methods and Modeling, Objective Data Analysis, Synoptic Dynamic Meteorology, and Applications of Numerical Models)
Weather Analysis & Forecasting
Scientific Programming, Data Analysis and Visualization Laboratory
Remote Sensing Lab
Field Observations and Measurements Laboratory
Numerical Methods Laboratory
Data Science Lab
Climate Modeling Laboratory
Weather Modeling Laboratory
Synoptic Dynamic Meteorology
Independent Study
Honors Thesis
Internship
ATOC Electives 1
At least 12 credit hours in ATOC courses not used to fulfill a requirement above.
Upper-Division ATOC Electives9
Upper- or Lower-Division ATOC Elective 3
Total Credit Hours45

 Required Ancillary Coursework from Outside ATOC

Ancillary Science and Mathematics Requirements
The field of atmospheric and oceanic sciences is highly interdisciplinary; therefore, students must develop a basic understanding of physics, chemistry, and mathematics to be successful. The required courses in the physical sciences and math departments outside of ATOC are a critical part of the major; they are needed to build a strong foundation upon which the remaining curriculum is based. All courses must be passed with a grade of C- or better required.
APPM 1350Calculus 1 for Engineers4-5
or MATH 1300 Calculus 1
APPM 1360Calculus 2 for Engineers4-5
or MATH 2300 Calculus 2
APPM 2350Calculus 3 for Engineers4-5
or MATH 2400 Calculus 3
APPM 2360Introduction to Differential Equations with Linear Algebra (Or MATH 2130 and MATH 3430)4-6
CHEM 1113General Chemistry 14
PHYS 1110General Physics 14
PHYS 1120General Physics 24
Ancillary Computing Coursework Requirement
Select one of the following courses:3-4
Computer Science 1: Starting Computing
Introduction to Scientific Programming
Programming for Information Science 1
Python for Math and Data Science Applications
Introduction to Python Programming for Earth Scientists
Total Credit Hours31-37

Graduating in Four Years

Consult the Four-Year Guarantee Requirements for information on eligibility. The concept of "adequate progress" as it is used here only refers to maintaining eligibility for the four-year guarantee; it is not a requirement for the major. To maintain adequate progress in ATOC, students should meet the following requirements:

  • In the first semester, declare the Atmospheric and Oceanic Sciences major.

Students must consult with a major advisor to determine adequate progress toward completion of the major.

Sample Four-Year Plan of Study

A general sample curriculum for Atmospheric and Oceanic Sciences majors is presented below. The curriculum here includes the required physical science, math, and ATOC courses, but it does not include specifics on general education requirements or non-ATOC electives.

Through the required coursework for the major, students will complete all 12 credits of the Natural Sciences area of the Gen Ed Distribution Requirement and the QRMS component of the Gen Ed Skills Requirement.

Not all ATOC 4500 courses satisfy all requirements. See department for more information. 

(See requirements section or degree audit for list of courses approved to count for ATOC Core, Fundamental of ATOC and Methods in ATOC.)

Plan of Study Grid
Year One
Fall SemesterCredit Hours
ATOC 1050
Weather and the Atmosphere
or Our Changing Environment: El Nino, Ozone, and Climate
or Introduction to Atmospheric Research
or Special Topics in Atmospheric and Oceanic Sciences - Lower Division
3
APPM 1350
Calculus 1 for Engineers
or Calculus 1
4-5
PHYS 1110 General Physics 1 4
Gen. Ed. Skills course (example: Lower-division Written Communication) 3
 Credit Hours14-15
Spring Semester
ATOC Elective 3
APPM 1360
Calculus 2 for Engineers
or Calculus 2
4-5
PHYS 1120 General Physics 2 4
Gen. Ed. Distribution/Diversity course (example: Arts & Humanities/US Perspective) 3
 Credit Hours14-15
Year Two
Fall Semester
ATOC Core 3
APPM 2350
Calculus 3 for Engineers
or Calculus 3
4-5
CSCI 1200 Introduction to Computational Thinking 3
Gen. Ed. Distribution course (example: Arts & Humanities) 3
Gen. Ed. Distribution course (example: Social Sciences) 3
 Credit Hours16-17
Spring Semester
ATOC Core 3
ATOC Core 3
APPM 2360 Introduction to Differential Equations with Linear Algebra 4
CHEM 1113 General Chemistry 1 4
Gen. Ed. Distribution/Diversity course (example: Social Sciences/Global Perspective) 3
 Credit Hours17
Year Three
Fall Semester
Fundamentals of ATOC 3
Methods in ATOC 3
Gen. Ed. Distribution course (example: Social Sciences) 3
Gen. Ed. Distribution course (example: Arts & Humanities) 3
Elective 3
 Credit Hours15
Spring Semester
Fundamentals of ATOC 3
Fundamentals of ATOC 3
Methods in ATOC 3
Gen. Ed. Skills course (example: Upper-division Written Communication) 3
Elective 3
 Credit Hours15
Year Four
Fall Semester
ATOC Upper Division Elective 3
ATOC Upper Division Elective 3
Methods in ATOC 3
Gen. Ed. Distribution course (example: Arts & Humanities) 3
Elective 3
 Credit Hours15
Spring Semester
ATOC Upper Division Elective 3
Methods in ATOC 3
Gen. Ed. Distribution course (example: Social Sciences) 3
Upper Division Elective 3
Elective 2
 Credit Hours14
 Total Credit Hours120-123

Learning Outcomes

By the completion of the program, students will be able to:

  • Acquire a foundational understanding of physical, chemical, mathematical, and computational concepts.
  • Demonstrate understanding of core atmospheric, oceanic, and climate processes and their interactions across multiple temporal and spatial scales.
  • Apply critical thinking and objective analysis methods to design experiments, test scientific relationships, and predict future outcomes.
  • Integrate modern computational tools, data visualization techniques, and model results to solve complex scientific problems.
  • Develop specialized skills in laboratory work, instrumentation, modelling, or forecasting that align with modern atmospheric and oceanic applications.
  • Communicate scientific content, methodology, and implications effectively to a diverse audience.