|
NWS Statistical Guidance Pioneer Marks 50 Years of Federal Service
by Jessica Harper
NWS Communications Office/Public Affairs Intern
|
Harry R. "Bob" Glahn, Director of NOAA's Meteorological Development Laboratory, is one of the main reasons why weather forecasters tap keys instead of pushing pencils.
Glahn was honored at a surprise October 25, 2004, ceremony attended by NOAA Administrator Retired Navy Vice Admiral Conrad C. Lautenbacher. Glahn was honored not only for his work in the field of applied statistics in automated weather forecasts, but also for sharing and implementing his scientific foresight and for his intent to foster a creative working environment. Known throughout the world for his work with applied statistics, Glahn
|
|

Bob Glahn receives an award from Brig. Gen. D.L. Johnson, USAF (Ret.), NWS Director.
|
|
has left an indelible mark on the history of modern meteorology and operational forecasting. "I enjoy my work," Glahn said. "I am very glad I chose to work for the NWS and am pleased with what we have all accomplished."
In the 1960s, he successfully shepherded the development and implementation of Model Output Statistics (MOS), which is a method of producing weather forecasts that uses advanced statistical techniques to improve the accuracy of forecasts generated by computer models.
Key Force Behind Change
"Bob is a key force behind a lot of significant changes to NWS operations over the years," said Stephan Smith, NWS Decision Assistance Branch Chief. "The MOS is the first thing forecasters consult. It's the first information they look at. It's like a knife in a kitchen. You can't prepare a meal without it."
Jack Hayes, Director of the NWS Office of Science and Technology who first met Glahn when Hayes was an officer in the U.S. Air Force, agrees.
"Bob's implementation of the MOS was a major step in applying probability and statistics to create weather forecasts for the American public," he said. "Local forecasts of the probability of rain, snow, and other weather conditions, are all the result of Dr. Glahn's pioneering work."
Under Glahn's leadership, MOS has helped forecasters produce high-quality weather forecasts up to seven days in advance. The MOS is used by almost every major national meteorological service in the world.
"The biggest challenge the NWS faced with MOS was writing and implementing the necessary software with half a dozen people," Glahn noted. "Statistical forecasts were not widely accepted and people were still adjusting to the cultural changes that accompanied centralized guidance."
Smith, who has worked with Glahn for a little over 11 years, praises his direction.
"Bob is not a limelight person; he was not involved with the product's design, but he made the change from text to gridded forecasts happen through his leadership behind the scenes," Smith said. "He helped the NWS cross that bridge."
As the 1990s dawned and the NWS set out to meet the challenges of the 21st Century and the digital age, Glahn sought to free forecasters from the headache of having to hand type hundreds of text forecasts. Instead, he envisioned forecasters using high tech tools to analyze and probe complex and hazardous weather situations.
Digital Services
Chief among these advancements is the Interactive Forecast Preparation System (IFPS). IFPS, which debuted September 30, 2003, at 122 Weather Forecast Offices (WFOs), allows a transition from manpower intensive text products to more efficient, information-rich digital and graphical weather forecast products.
Glahn is constantly looking for ways to take the NWS to the next frontier, and his latest venture is no different. He recently set in motion a country-wide team to develop a National Digital Forecast Database (NDFD) concept in which the gridded forecasts produced at the122 separate WFOs would be forged into a single national gridded forecast database.
"The NDFD project did not have an end-to-end program plan or much funding, but we did as well as could be expected with what we had," Glahn noted. "The NWS would not be where it is today if we had not just started out and done it."
By taking this leap ahead, Glahn has once again proven his willingness to embrace technical and cultural change. The challenges of creating a streamlined national digital database collaboratively among offices scattered throughout the U.S. have been immense, but he's faced them with a hopeful enthusiasm.
"He sets a high standard for himself and for those who work for him, and makes a point of focusing on the right way as opposed to the quickest way to develop new science," Hayes said.
"Bob has seen everything, and yet he still brings a level of freshness to his work, even after 50 years," Smith added. "It's a real privilege to work with someone who has such deep scientific knowledge as well as high professional integrity."
As a member on a committee of the World Meteorological Organization, Glahn was one of the first NWS employees to recognize the need for a statistical interpretive system for numerical models and to develop the GRIB2 (GRIdded Binary) data format. He has also been active in hosting visiting scientists and forecasters from other countries, including the Chinese Meteorological Agency.
"Scientists visit not only from China but also from Korea, Japan, and Taiwan," Glahn said. "One of the scientists worked with us to implement a gridded thunderstorm product. It's a two-way street. They receive side-by-side training, and we benefit from their work as well."
Additionally, Glahn, a one-time country school teacher and former Air Force officer, has authored and co-authored over 100 papers on various topics. Despite his hectic work schedule, he is very interested in creating a warm and friendly environment within the lab.
"He sponsors social gatherings during the year at Thanksgiving, Christmas, and on other occasions, to allow employees to get to know each other outside the hectic work environment," Hayes said. "They're always well-attended, even by former MDL employees who have retired."
Mostly because of Glahn's diligence, the MOS, IFPS, and NDFD projects are not only examples of technological greatness but are also great connectors that link WFO forecasters together and enrich the lives of NWS customers and the American public at large.
Back to Top |