Remaking Stable Boundary Layer Research, From the Ground Up

A recently accepted essay for the Bulletin of the American Meteorological Society by Joe Fernando and Jeff Weil is good background reading for this week’s AMS 19th Symposium on Boundary Layers and Turbulence in Keystone, Colorado.
Fernando and Weil point out that research into the lowest layer of the atmosphere where we all live and breathe will need to evolve to meet needs in numerical weather prediction. While progress is apparent in the modeling of the boundary layer when it is stirred into convection, those models have obvious shortcomings when the low-level air is not buoyant—the stable boundary layer typically encountered at nighttime. The stable boundary layer controls transport of pollution, formation of fog and nocturnal jets in the critical time before the atmosphere “wakes up” in daytime heating. Weil, in his presentation this Thursday at Keystone calls the still-flawed modeling of the stable situation “one of the more outstanding challenges of planetary boundary layer research.”
Fernando and Weil write in BAMS that study of the stable boundary needs to be retooled to embrace interactions of relevant processes from a variety of scales of motion. The weakness and multiplicity of relevant stable boundary processes means that investigations of individual factors will not be fruitful enough to improve numerical prediction. Scientists need to temper their natural tendencies to try to isolate phenomena in their field studies and modeling and instead seek

simultaneous observations over a range of scales, quantifying heat, momentum, and mass flux contributions of myriad processes to augment the typical study of a single scale or phenomenon (or a few) in isolation. Existing practices, which involves painstakingly identifying dominant processes from data, need to be shifted toward aggregating the effects of multiple phenomena. We anticipate development of high fidelity predictive models that largely rely on accurate specification of fluxes (in terms of eddy diffusivities) through computational grid boxes, whereas extant practice is to use phenomenological models that draw upon simplified analytical theories and observations and largely ignore cumulative effects/errors of some processes.

This new perspective, the authors argue, will be a “paradigm shift” in research and modeling.



Join the Climate Services Dialogue Now

At the behest of Congress, the National Academy of Public Administration is formally studying of “organizational options for a Climate Service within the National Oceanic and Atmospheric Administration (NOAA).” Until the end of Sunday, 27 June, you can participate in the open discussion at the NAPA Climate Dialogue web site.
The input NAPA is seeking focuses on the following questions:

What climate information and services do you find most useful currently and why? Who provides them?
How could your access to climate information and services be improved?
What mechanisms would you recommend to enable ongoing communication of your climate information and service needs to NOAA?
How should the NOAA Climate Service engage with other providers of climate information and services to meet your information needs?

What is driving your need for climate information or services?

The range of input is already impressive and thought-provoking, discussing the future of specific NOAA offices, educational aims, data archiving, the role of prediction and research in the future Service, and more. For instance, while some comments address the possible savings by reducing overlapping climate responsibilities across Federal agencies, others criticize reorganization for reorganization’s sake:

There are already excellent programs in the federal government for calculating [hydro-climatic statistics], updating them, and delivering them to users.  The issue is that these programs are seriously underfunded and thus the information is seriously out of date.
It frequently seems that agencies respond to problems by reorganizing rather than by supporting the good programs that already exist.  In my experience this is usually a mistake.  A climate service should point people to these kinds of information and support keeping them up to date, but should not try to take this role.

Here’s another along a similar vein:

As a long time NOAA partner working in the field, I am very concerned about adding infrastructure in the Beltway, especially at a time when so much more is required of NOAA in the field. As an extramural partner funded by OAR that is ocean ecosystem goal-related, versus climate, I am concerned about what will happen to the rest of OAR when the NCS takes away more than half the program and budget.

Others have a more hopeful take on

Read more

Art and Science To Reign Together in Seattle

Atomic Storm Cloud by John Lewis.

Microbursts, photography, supercooling, sculpture, Alberta Clippers, painting, sea level rise, and more. If you’re curious about the connection between these things, then you’ll want to see Forecast: Communicating Weather and Climate, a visual art exhibition with a scientific twist opening in January at the Washington State Convention Center alongside the 91st AMS Annual Meeting. Best of all, the artists making the exhibit have joined forces with your scientific colleagues to develop the connection between art and science.
Nearly half of the artists selected for the exhibition accepted the invitation to work with AMS members to create new works for this occasion. Nine of these collaborations will be on view at the Convention Center. AMS conference chair Peggy Lemone and committee member Steve Ackerman identified collaborating scientists who study what the artists are interested in exploring. Forecast collaborating scientists hail from universities and research centers in seven states in the US and Australia.  In addition to Washington, the states are: Colorado, Illinois, Montana, New York, and Wisconsin. The scientists’ areas of study include Arctic sea ice; atmospheric boundary layer; atmospheric chemistry; climate dynamics and change; cloud physics; eco-meteorology; hydrology; mesoscale analysis, convection, forecasting, and meteorology; oceanography; optical sciences; paleoclimate; precipitation physics; radar; regional climate; weather; and wind energy.)
Following the theme of the Seattle meeting, “Communicating Weather and Climate,” Forecast will engage scientists, artists, and the general public in dialogue on innovative ways to communicate and understand weather and climate issues. The exhibit will feature the works of more than 30 regionally, nationally, and internationally recognized artists based in Washington or featured in Seattle art collections.
“I can say from personal experience that working with an artist, you discover the commonality between the sciences and the arts. The creative process is similar: we both want to ‘see’ the world in new ways and to communicate our vision to others,” comments 2010 AMS President Peggy LeMone. “These scientist-artist dialogues give us a better chance of communicating this vision—and through the arts we can avoid the barriers people might have to learning something new.”
The exhibit is a collaboration between AMS and EcoArts Connections (EAC), which brings together science, arts, and other organizations to advance understanding of climate change and sustainability through performances, exhibits, talks, consulting, and other activities.
“In addition to being aesthetically nourishing, the exhibition will also be scientifically engaging, helping the public better experience a broad array of weather and climate activities.” says Marda Kirn, executive director of EAC. “The works will share not only the beauty of natural forces, but also the impact of weather and climate upon public health and safety, economic growth, national security, sustainability, and air and water quality.”

Approaching Storm by John Armstrong.The exhibit is curated by Lele Barnett, a Seattle-based curator and the former owner of McLeod Residence, a home for extraordinary living through art, technology, and collaboration. (www.lelebarnett.com.)

The exhibit will open on Monday 24 January and will continue thru 9 April 2011. On that first day (5-7 pm) there will be a private opening reception at the exhibit for AMS donors and collaborating artists and scientists followed by a public reception from 7-9 pm.
Forecast is made possible in part by the American Meteorological Society, Brainerd Foundation, NASA, JOSS, and UCAR.

Image Conscious

Brewer and Shields, by Harry Lim
Broadcast meteorologists Jason Brewer and Brian Shields in the throes of sensitive dependence on initial conditions, thanks to photographer Harry Lim.

Right or wrong, people often tell tales about frequent disagreement between weather forecasts. Take a random example posted by the Cherry Hill, NJ, school administration:

The decision to change school schedules due to inclement weather is based on the best information available when the decision is made; however, we can never be sure how the weather will affect our area. Even meteorologists disagree on weather predictions.

Such, um…(cough, cough)…nonsense… deserves a chuckle when brought to good-humored life by photographer Harry Lim in this doctored image of Orlando, Florida, broadcast meteorologists. See Lim’s blog for the full image and description of the photo shoot for an upcoming issue of a local homeowners’ association magazine, Baldwin Park Living.

Not Sure How to Say Uncertainty?

A posting today on the Weather and Climate Discussion blog of the Department of Meteorology at the University of Reading tackles the burgeoning subject of communicating forecast uncertainty.  It ends with a well-chosen quote from Francis Bacon:

If a man will begin with certainties he shall end in doubts; but if he will be content to begin with doubts he shall end in certainties.

This resourceful use of literary heritage sends us hunting for other like-minded quotations.  A quick check of a quotations reference yields plenty of quips and admonishments. Most are too metaphysical for meteorological musing. For instance, from Kahlil Gibran:

Doubt is a pain too lonely to know that faith is his twin brother.

Hmmmm. Maybe that’s not the best thought for portraying ensemble modeling results. Fortunately, there are more suitable candidates, as in this one from the English poet, Robert Browning

Who knows most, doubts most;…

(Unfortunately, Browning’s corollary is not so reassuring)

…entertaining hope means recognizing fear.

On this side of the Pond, communicating uncertainty becomes even more heavy-handed. From 20th Century American legal eagle, Clarence Darrow comes this motivation:

Just think of the tragedy of teaching children not to doubt.

Clearly, the thesaurus is a dangerous place to hang out: “doubt” is the downer scientists avoid with “uncertainty.”  Better to parse out Donald Rumsfeld’s oft unappreciated and surprisingly articulate case for ensemble modeling:

There are known knowns; these are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns — the ones we don’t know we don’t know.

Channeling Weather

Meteorologist Paul Huttner’s writes on his Minnesota Public Radio blog, “Updraft” about the launch today of a new cable TV channel for weather, “The Weather Cast.”

From my perspective, this news may come as the equivalent of a nuclear bomb for national cable and satellite weather programming. This is the first time since The Weather Channel’s launch that a viable national alternative has appeared.

The distributor, and apparent instigator, of the new channel is the DISH Network, with 14 million subscribers. In its press release, the network explained it was responding to a proliferation of movies, features and other content on TWC that aren’t about the weather at hand:
“Our customers always tell us that the only thing they want in a weather channel is weather reporting,” said Dave Shull, senior vice president of Programming [for DISH].

But there’s more to the business side of this decision than just trying to cater to viewers: DISH had been negotiating with TWC over fees, with a deadline of midnight Thursday.  The plan was for DISH to dump TWC (channel 214) and substitute the The Weather Cast (initially channel 213) assuming no deal with TWC.
A visit to the DISH web site didn’t yield any further information, but Huttner reports that fellow Minnesota meteorology icon Paul Douglas is producing the network through his company, Weather Nation.
Dare we imagine a day when weather junkies will be able to surf national cable channels the way politicos and news junkies surf Fox, CNN, MSNBC and other outlets?

Now the Science Is In Their Court

We … call for an end to McCarthy-like threats of criminal prosecution against our colleagues based on innuendo and guilt by association, the harassment of scientists by politicians seeking distractions to avoid taking action, and the outright lies being spread about them.

The rhetoric from this letter to the 7 May issue of Science magazine may seem unusually overheated, especially considering it is signed by some 255 members of the U.S. National Academy of Sciences. But the topic is, of course, global warming, and the heat—political and social—has turned up several notches this year, as you know. (Indeed, the firestorm of commentary on the doctored picture of a polar bear on an ice floe that Science chose to accompany the letter is instructive of the tempers spilling out of the climate change discussion of late.) The rhetoric is a sure sign that climate change long ago outgrew the Ivory Tower and now hinges on the court of public opinion, where appearances are as critical as ideas. But that’s well understood; what’s new is that science seems to have moved on to yet another court of opinion where the appearance of fairness trumps all other familiar criteria.
The tipping point for the Science letter was a Civil Investigative Demand (CID) issued in April by the office of Virginia Attorney General Kevin Cuccinelli as part of a fraud investigation of climate change research conducted at the University of Virginia. Specifically, the CID would have the university turn over all documentation, correspondence, work—anything basically—related to five grants stretching back to as much as 11 years ago for climate change research by Michael Mann, a leading climatologist who has since moved on from Charlottesville to Penn State University. The CID gave the university just three months to complete the state’s massive, time-consuming document search.
The outrage from scientists was joined last week by AMS Executive Director Keith Seitter and UCAR President Rick Anthes, whose letter to the UVA president seeks protection of the scientific process, while it is still possible to challenge the CID.

We feel strongly that the actions of the Virginia Attorney General represent an inappropriate use of government authority, and urge you to do everything within your power to uphold the tenets of academic freedom.

The university’s faculty senate, the American Civil Liberties Union, American Association of University Professors, and others had also cautioned that compliance with the CID could compromise academic freedoms. Even one of Mann’s most persistent critics (aimed mostly at his “hockey stick” graph of rising temperatures that has gotten considerable exposure through the IPCC and other citations) has condemned Cuccinelli’s tactic.  On Friday, UVA administrators announced they would use private funds for legal representation in this matter, saying “Research universities must defend the privilege of academic freedom in the creation of new knowledge.”
At the same time, Nature magazine joined the chorus of protest from scientists with an equally strong editorial in their 13 May issue.

Cuccinelli’s actions against Mann hark back to an era when tobacco companies smeared researchers as part of a sophisticated public relations strategy to raise doubts over the science showing that tobacco caused cancer, and delayed the introduction of smoking curbs for decades. Researchers found themselves bogged down in responding to subpoenas and legal challenges, which deterred others from the field. Climate-change deniers have adopted similar strategies with alacrity and, unfortunately, considerable success.

It is easy to see why Nature considers the Virginia fraud investigation part of a trend. Climate science has gotten more entangled in the legal system since the hacking of emails at East Anglia. In February, three states—Texas, Alabama, and, yes…Virginia—said they would challenge EPA regulation of carbon dioxide as a pollutant. The suit is based on doubts about the validity of anthropogenic climate change fueled by the East Anglia e-mails that were hacked (or stolen or leaked) last fall.
And while the legal system is now a venue for challenging the scientific basis of climate change, scientists in turn are using the same system to respond to attacks on themselves and their work. In March, lawyers for Mann took action to stop internet distribution of a video lampooning one of his emails in the East Anglia servers. Similarly, late last month, Andrew Weaver of the University of British Columbia, one of the lead IPCC authors (and former chief editor of Journal of Climate) filed a libel suit against The National Post of Canada. Dr. Weaver said, “I asked The National Post to do the right thing – to retract a number of recent articles that attributed to me statements I never made, accused me of things I never did, and attacked me for views I never held. To my absolute astonishment, the newspaper refused.”
Already, plenty of words have been spilled on the pitfalls of scientists becoming their own advocates in the policy arena. Now climate change science steps out further, to be evaluated in a system that not so much determines truth as upholds fairness through a competition of advocacy. The rules of the game are even more obscure than before. The ball is officially in someone else’s court, and it is difficult to imagine this is any better for science.

The Long and Short of Volcanic Effects

In one of the classic understatements of aviation history, Eric Moody turned on the flight intercom of his British Airways 747 and reported to his 248 passengers:

Ladies and gentlemen, this is your captain speaking. We have a small problem. All four engines have stopped. We are doing our damnedest to get them under control. I trust you are not in too much distress.

The date was 24 June 1982, and Moody’s 747 was south of Java, en route from Heathrow to Auckland, amidst an ash cloud from Mount Galunggung in Indonesia. At first it looked as if the only hope was to ditch the plane in the ocean. However, the crew was able to glide the plane (let’s all nod now  to engineers who managed to create a jumbo jet that descends only one meter for every 15 flown without power) until successfully restarting three of the four engines, but the damage from the cloud made for a harrowing landing over the mountainous terrain around Jakarta. In 1989, another 747 temporarily lost use of all four engines due to a volcanic plume (from Alaska’s Mt. Redoubt).
Not surprisingly, since the British Airways incident, volcanic plumes—previously studied more closely for their climatic effects—have become a preoccupation of weather forecasters. The world meteorological and aviation communities have collaborated on the International Airways Volcano Watch, whose advisories Thursday led to the cancellation of flights across northern Europe due to the eruption of Iceland’s Eyjafjalla volcano. It will be hard to overstate the  consequence of this eruption for travelers around the world; it is already being compared to the no-fly days after 9/11.

UK Met Office volcanic plume forecast for 1800Z on 16 April 2010. Note the fine print about the height of the plume: no risk above 35,000 feet.

The UK Met office shows the anticipated spread of the ash cloud.
Readers interested in how meteorologists detect and analyze volcanic plumes (mostly with satellite ) will want to check out the article on IAVW in the February 2007 issue of Weather and Forecasting by Tupper et al. Also in 2007, BAMS published a cover article by Mesikalski et al. previewing some potential improvements in the use of satellite technology for aviation safety, including avoidance of volcanic ash. A quick search of AMS journal articles shows other contributions on weather forecasting and climate topics related to volcano eruptions.
Most commentators meanwhile seem to be heading off the inevitable rampant speculation about the climatic effects of the Iceland eruption. Cliff Mass of the University of Washington discusses the relatively small size of the eruption so far (the length of the eruption being a key unknown factor). However, Jeff Masters in his Wunderground blog  gives an explanation for why high-latitude volcanoes don’t tend to cool the climate as well as tropical volcanoes.
To sum up the Masters’ logic: the atmospheric circulation won’t encourage lofting and spreading of the plume as it would over the tropics, where volcanic gases are pumped high into the stratosphere, causing formation of sulfates in addition to the original volcanic ash(which is heavier and eventually settles out) and then spreading toward midlatitudes.  Various conflicting reports about the height of the Icelandic plume can be found–here’s another meteorologist supporting Masters’ contention that the height of the Iceland plume is so far not enough to be a major climatic factor.

Nothing Will Stop Her from Being a Meteorologist

Joanne Simpson, 1923-2010

AMS President Peggy LeMone wrote a guest editorial in the UCAR Staff Notes in January, telling stories from the front lines of the struggle to give women equal footing in the sciences. Interestingly, several times during LeMone’s career at NCAR, women had to formally organize themselves to fight a particularly galling decision or simply to understand and improve their working conditions. None of these episodes, however, quite encapsulates the lonely, embattled situation of women meteorologists during the 1960s and ’70s more than LeMone’s observation that,

When I met Joanne Simpson, she greeted me like a long-lost sister—it was so exciting to meet another woman in the field!”

This little cameo just confirms that no history of women in science (this being, after all, National Women’s History Month) could be adequate without at least some mention of Joanne Simpson, the first woman Ph.D. meteorologist, whose distinguished research career brought her in contact with her female peers all over the country. She was the pioneer who made all the other pioneers possible.
While one would scarcely know it upon meeting and talking to Joanne, the weight of this responsibility blazing a path for her female colleagues took a toll. She said

I have always felt that I’ve been carrying a big burden for other women, because if I mess up then the chances for other women to get the same kind of job are going to be diminished.

Of course Joanne Simpson, who died early Thursday less than three weeks before her 87th birthday, did not mess up.  She has long been a legendary pioneer of meteorology. Winner of the AMS Rossby Award (and our president, in 1989) as well as the IMO Prize, she turned meteorology on its head with the discovery that energetic processes in clouds don’t just signify the atmospheric circulation, they help drive it. She went on to extend her concept of “hot tower” clouds to explain the inner workings of the heat engine of hurricanes, then fought for the satellite observing systems that would later show such clouds in action.
Simpson basically created from scratch the discipline of cloud studies as we know it today, then mentored the people and fostered the technology to make sure it would thrive. (For more of Simpson’s inspiring story, be sure to read John Weier’s biographical article at NASA’s Web site, or the AMS monograph, Cloud Systems, Hurricanes, and the Tropical Rainfall Measuring Mission, A Tribute to Dr. Joanne Simpson.)
It was quite obvious to the multitudes who knew Simpson that she was in this science for the love of the science itself; consider what she told LeMone in a 1989 interview:

My greatest wish would be to be like Grady Norton, who died of a heart attack while forecasting a hurricane, or like my early hero, Rossby, who keeled over and died in the middle of giving a seminar. I don’t like the idea of when I won’t be a Meteorologist anymore. It’s just inconceivable to me.

Inconceivable indeed, with thousands of people following her path, studying the observations she made possible, using the ideas she formulated. Nothing could ever stop Joanne Simpson from being a meteorologist. Not then, not now.
No real story of meteorology could be written without telling hers. We invite you to do exactly that and share your own part of her story in the comments section.

To Don Kent, the Meteorology Was What Mattered

Guest Post by Bob Henson, UCAR
I consider myself forever lucky to have met Don Kent.  On a bright, mild afternoon last September, I drove to New Hampshire with AMS archivist Jinny Nathans and NCAR archivist Kate Legg to interview Don for the AMS-UCAR oral history project.  Knowing that I was at work on a history of television weathercasting (Weather on the Air, to be published this June by AMS), Jinny suggested the time was ripe to get the full interview that Don and his illustrious career so richly deserved.

Don Kent at his interview last September. He passed away yesterday at age 92.

We spent a delightful afternoon as Don recounted the saga of his involvement in weather and broadcasting.  It began during his 1920s boyhood, listening on the radio to Boston’s original weathercaster, E.B. Rideout.  There were obstacles along the way, including the ones Don hurdled as a volunteer weatherman for WMEX in the late 1930s, not long after high school.  As was the case until the 1950s, radio stations couldn’t even get teletype reports, much less Internet feeds, so Don had to traipse back and forth each day:
“I went to the weather bureau at Boston at 11 a.m., got the first map off the press at 11:30, and got up to the radio station for the 12:55 broadcast.”
Don told us about experiencing and covering the great hurricanes of 1938 and the 1950s.  He recounted his adventures and achievements during World War II and his serendipitous return to weathercasting years later.  His eyes brightened as he recalled his defense of on-air meteorology during the 1960s, when a WBZ news director told him either Kent or the isobars on his maps would have to go.  (In the end, of course, they both stayed.)
Interestingly, this legendary weathercaster and self-proclaimed “weather nut” told us that, of late, he’d been turning to the Internet rather than television for his atmospheric fix.  Who needed TV, he said, “when you’ve got your own computer showing the satellite and all the other stuff.”
What mattered most to Don, it seemed, wasn’t the medium but the meteorology. His legacy is safe among the thousands of Bostonians who counted on his dependable, no-nonsense reports, as well as the many weather communicators he mentored and inspired. If he’d had a youth serum handy, I have no doubt that Don would be podcasting, blogging, and YouTube-ing for decades to come.  Guest Post by Bob Henson, UCAR Communications Office.