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Intern- Diurnal Cycle of Global Precipitation
Reference #:21-3091
Open Date:4/27/2021
US Citizenship Required:No
Job Description:

Science Systems and Applications, Inc (SSAI) is seeking a 2021 Summer Intern to examine the diurnal cycle of global precipitation as depicted in the IMERG dataset. This work is under the Support for Atmospheres, Modeling, and Data Assimilation (SAMDA) contract. This contract provides scientific, technology and research support for NASA’s Earth Science Division (ESD) in the areas of Atmospheric Science and Data Assimilation.

The Global Precipitation Measurement (GPM) mission is a joint NASA-Japan Aerospace Exploration Agency activity intended to advance the science of global precipitation.  Within GPM, the U.S. Science Team has developed the Integrated Multi-satellitE Retrievals for GPM (IMERG) algorithm, which provides relatively fine-scale (0.1° lat./long., half-hourly), quasi-global precipitation estimates for the period 2000-present.  More information is available at  IMERG’s high resolution and long record provides a state-of-the-art look at precipitation fluctuations around the globe, of which one is the average variation through the day – the diurnal cycle.  Some analyses have been carried out to examine diurnal cycle statistics in selected regions (e.g.,, but there remain many interesting questions about the cycle as a function of season, geography, and environment. 

Working in the IMERG group, you will use IMERG to examine diurnal cycles of precipitation around the world.  Specific regions of focus include the Maritime Continent, Africa, and Central/South America.  You will investigate how the diurnal cycle is affected by the environmental conditions, considering both large-scale variables such as vertical motion and temperature, as well as modes of climate variability such as the El Niño–Southern Oscillation and the Madden-Julian Oscillation.  You will also be able to leverage existing and ongoing analyses that have already been performed in the IMERG group on this subject.

Intern will learn and be exposed to:

  • The science behind the diurnal variability of precipitation around the world
  • The handling and manipulation of large datasets, with an understanding of its possibilities and limitations
  • Hands-on planning and strategizing with the IMERG group
  • Opportunity to develop a presentation on project results 

As an SSAI intern, you will take part in the NASA Summer 2021 GSFC Orientation and other events and activities offered by the NASA internship program throughout the summer. This is a 100% virtual internship.

Required Qualifications:
  • Currently enrolled in B.S. or M.S. program in Atmospheric Science, Physical Science, or Engineering, or related field
  • Excellent communication skills
  • Proficiency in the following:
    • Python programming
    • Microsoft Office (Word, PowerPoint, Excel)

Desired Qualifications:
  • Proficiency in Fortran programming
  • Experience working with large datasets