Global Science & Technology, Inc.
  • Science
  • College Park, MD, USA
  • Full Time

Global Science & Technology, Inc., a fast growing scientific and high technology firm, is seeking Physical Scientists to support the NOAA NESDIS/STAR program.  The position is located in College Park, MD.

Project Summary:

NOAA/NESDIS/STAR develops and maintains algorithms, software and services to create products from remote sensing data collected from NOAA and non-NOAA missions. 

The Physical Scientist is expected to participate in studies to use satellite data to quantify the uncertainty of Global Positioning System (GPS) radio occultation COSMIC-2 refractivity, bending angle, temperature, and water vapor profiles specifically focusing on mid- and lower-troposphere. The COSMIC-2 soundings will have better signal-to-noise ratios (SNR) than those of COSMIC, allowing profiles closer to Earth's surface and providing higher precision to extend existing applications and promote new ones for the weather, climate, and ionospheric communities. This effort is to provide support for using satellite-based Radio Occultation (RO) derived atmospheric profiles for assimilation into National Weather Service (NWS) numerical forecasts and models by providing spatial and temporal COSMIC-2 bending angle and refractivity error estimate for further numerical forecast experiment.

Neutral atmosphere profiles are assimilated by the National Centers for Environmental Prediction (NCEP) Numerical Weather Prediction (NWP) models. The Physical Scientist is expected to conduct one dimensional (1-D) variation inversion for RO data, provide scientific and technical support for research on various issues on the numerical weather prediction research using GPS RO data, including quantifying impacts of the optimal estimates of RO bending angle observation uncertainty (known as Local Special Width - LSW) at all the vertical levels for each individual RO profile on current operational GSI (Gridpoint Statistical Interpolation) data assimilation (DA) system, and assess its impact of RO data on global numerical weather prediction.

Duties:

  • Quantify the uncertainty of RO observations using all available data including reanalysis
  • Use RO data to quantify the model uncertainty/biases especially in the tropical lower troposphere
  • Assist NCEP for using RO data in the NCEP system
  • Operational Long Term Monitoring (LTM) Both the health of the sensors and the quality of the environmental products are assessed on a continuing basis
  • Operational Exploitation algorithms can be improved or extended to enable extended science application.
  • Provide scientific and technical support for research on various issues on the numerical weather prediction research using GPS RO data, including quantifying impacts of the optimal estimates of RO bending angle observation uncertainty (known as Local Special Width - LSW) at all the vertical levels for each individual RO profile
  • Evaluate the impact to NWS application of RO data as received and anticipated 

Required Education/Experience/Skills:

  • A Master's degree (Ph.D. preferred) in Atmospheric Science, Remote Sensing, Electrical Engineering Signal Processing, or other physical science related fields and a minimum of 6 years of professional experience. Equivalent experience and graduate degrees may substitute for a degree.
  • Experience in using GNSS data for research
  • Experience in GNSS and/or radio occultation science and technology
  • Experience in infrared and/or microwave satellite data
  • Three years of experience of data assimilation and numerical weather prediction 

Desired Skills:

  • Excellent verbal, written and interpersonal communication skills
  • Ability to work with others as a research team
  • Ability to work in a culturally diverse environment 

Physical Qualification(s) Required:

  • Ability to use a computer 

Mental Qualification(s) Required:

  • Ability to think on one's feet 

U.S. citizenship or Permanent Resident (Green Card holder) is required.

Selected applicants will be subject to a government background investigation.

GST offers competitive salaries; vacation, sick, and holiday leave; major medical, dental, life, long-term and short-term disability insurance; 401K retirement plan; tuition assistance; and opportunities for employee career growth and development.

You may also fax your resume to (240) 366-5994.  If you need assistance, please call 301-474-9696.

All qualified applicants will receive consideration for employment without regard to age, race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veterans' status.  GST is an Equal Opportunity/Affirmative Action Employer. 

Global Science & Technology, Inc.
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