Davis Instruments Weather Club
July 2002
Dear Weather Club Member,
Welcome to the July edition of our Weather Club e-news!
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Quick Preview of this Month's Contents
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- Isn't Baseball Season Over Yet?
- FREE Upgrade for WeatherLink v5.2 for Windows!
- MAC Users, We Heard Your Pleas!
- Davis has the Best Beta Testers
- Vantage Pro Named to Home Automation Magazine's Top 50 Editors' Pick List
- He Wishes Bird Droppings Were His Problem
- Five Ways to Convince the Board
- New Leaf & Soil Moisture/Temp Stations Take Guesswork Out of Growing
- Leave a Child in an Unattended Vehicle? Never!
- You're Brilliant! Answers to Quiz Questions
- Who You Gonna Call? Davis!
Enjoy!
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Isn't Baseball Season Over Yet?
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There are a lot of baseball experts out there reading the Davis Weather Club E-News! Andrew Czernek, of Mukilteo, WA, who is a Googles Answers researcher, set us straight on the issue of humidity and baseballs. We reported last month that on "wet" days with higher humidity, baseballs don't fly quite as far as on "dry" days, and that is why some professional baseball teams store game balls in a humidity-controlled locker.
"Actually," Andy told us, "only the Colorado Rockies, whose home is Coors Field, are doing it - as an experiment authorized by Major League Baseball. Distance is part of it and the Rockies management also says that pitchers were complaining that the 'dry' ball was like throwing a cue ball - difficult to grip."
The team has permission to keep the balls at 40% humidity to counteract the naturally dry effects of the Denver environment. (Average afternoon humidity in Denver is 32% - 34%.) A consummate baseball fan, Andy notes that the higher batting averages at Coors Field are notorious, and that the humidor experiment does seem to be helping Rockies' pitchers. Which, of course, does not please everyone. Andy sent along a link to a USA Today story that covers all the details.
Weather Check Quiz Question 1: This one is from Andy. Weather Club members know the words for the study of the physical characteristics of the moon and the study of the role of flags in the modern world. And now they all think they are soooo smart. Well, what is the word for the science of baseball statistics? (Don't feel so smart now, huh?)
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FREE Upgrade for WeatherLink v5.2 for Windows!
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It's here! Davis is happy to offer a FREE upgrade to our new WeatherLink v5.2 for Windows! Per your requests, the new software will allow you to use your Vantage Pro to participate in the NOAA's Citizen Weather Observers Program by submitting data from your weather station over the Internet. It also logs UV and solar radiation data, as well as a variety of new energy, health, and agricultural monitoring features.
Owners of WeatherLink v5.0 or v5.1 can download the free upgrade.
Weather Check Quiz Question 2: What is ET? And why does it want to phone home?
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MAC Users, We Heard Your Pleas!
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Exciting news for all you die-hard Mac users: WeatherLink v5.2 for Vantage Pro for Macintosh OS X is now available! Finally! Equality for just $165! For more about this product click here.
For more information, call our customer service department at 1-800-678-3669 or view the product pages.
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Davis has the Best Beta Testers
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Hey, all you Beta Testers, and you know who you are, thank you! Our latest version of WeatherLink v5.2 has your fingerprints all over it. We had an overwhelming 164 responses including both suggestions and bug reports, with bug-champ Mark Shepherd of Auckland, New Zealand, providing the most comments. We always knew Mark was our kind of guy. Thanks again to everyone for all the help.
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Vantage Pro Named to Home Automation Magazine's Top 50 Editors' Pick List
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If we were movie stars, we'd feel like we just won an Oscar! The editors at Home Automation Magazine, "The How-To Guide to Home Technology," see every new technological product there is. When it came time to select their top 50 from among the zillions of A/V equipment, home controls, sensors, security, Internet, HVAC, and home networking products, Davis's Vantage Pro was right up at the top! The list, which was published in the June/July 2002 issue, highlights the "year's hottest connected home products."
It really doesn't surprise us that the judges considered "innovation, functionality and ingenuity" in making their selection. If that's what they were looking for, our Vantage Pro was a shoe-in!
Home Automation's website is at http://www.homeautomationmag.com/index.html. For another story about home automation, read our August 2001 E-news at http://www.davisnet.com/news/e_news_archive/0108.asp.
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He Wishes Bird Droppings Were His Problem
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Dean Marvin of Albuquerque, NM, has a warning for folks who try using pins or other metal barriers on their rain collectors to prevent unwanted bird landings (and droppings). He used chicken wire, which repelled birds all right, but it attracted, he suspects, a nice fat bolt of lightning. It's the points birds object to, and that goes whether the point is plastic or metal. A quick search on the internet (type in "bird spikes") pulled up several sites offering plastic products that will do the trick nicely. Thanks, Dean, for the warning!
While we're on the subject of lightning, G. David Thayer of Salem, OR, pointed out that while Florida holds the record for people dying from lightning strikes, there is a secondary maximum over the southern Rocky Mountains around Santa Fe, NM. David studied this phenomenon when he was an atmospheric physicist at the NOAA Environmental Research Lab. He says the area gets an average of some 90 thunderstorms each year.
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Five Ways to Convince the Board
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Usually our readers, in their wisdom and compassion, have more than a few solutions to problems posed by their fellow weather enthusiasts. However, Terry Stick's problem seems to have stumped you all. He's the guy who wants to install his weather station on his Florida condominium and needs to convince the board of directors to allow him to install the station on the roof.
So, here are our five best suggestions:
- Explain that, in the event of a hurricane or other extreme weather, a very local weather station with accessible, real time data would be invaluable both before the event and after. Gene Kramer, who uses a Vantage Pro in his work at the Freeburg (Illinois) Emergency Services Disaster Agency, told us that his agency often gets calls from insurance companies after a severe weather phenomenon. When Kramer can provide proof of the event, insurance companies are much more apt to reimburse claims quickly.
- Reiterate number one, with emphasis on the words hurricane and real-time and maybe, insurance.
- Point out the aesthetically pleasing properties of the Vantage Pro. The spinning wind cups are more fun to watch than the Home Shopping Network.
- Offer to include a photo of the condominium complex, complete with weather station, on your web page.
- Bring your station to a meeting. Let the members each look at the console and see what it can do. That ought to do it
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New Leaf & Soil Moisture/Temp Stations Take Guesswork Out of Growing
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Drum roll, please! The new Davis Wireless Leaf & Soil Moisture/Temperature Stations are here! Turf-managers, farmers, and gardeners will be turning cartwheels over their wheelbarrows when they discover what a great help the new stations, designed for use with the Vantage Pro, will be in making decisions about irrigation and pest control. The new stations feature Watermark® soil moisture sensors made by Irrometer, and can use up to three sensors with a single station. Moisture and temperature sensors are sold separately, so growers can build the station of their leafy dreams.
Click here to find out more about the new station.
Weather Wise Quiz Question 4:
Here's a more-botanical-than-weather question for the life scientists among us. What anatomical structure do plants use to control the amount of water vapor leaving their leaves?
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Leave a Child in an Unattended Vehicle? Never!
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Much too often we are devastated to hear of yet another tragedy involving a child left unattended or accidentally trapped in a hot car. Last year, 34 children in the United States died of hyperthermia after being left unattended in vehicles. Here in the Bay Area, a five-month-old baby died after being left in a car on an 86-degree day just a few weeks ago.
In an effort to help prevent future tragedies like this, Jan Null, Certified Consulting Meteorologist, is using a Davis Weather Station to determine just how hot-and how quickly-it gets inside vehicles compared to the ambient temperature.
"The numbers I am getting are quite an eye opener," says Jan. "For example, on May 24th, another 86 degree day, the shaded temperature inside my car rose from 84 to 109 in just ten minutes, then up to 119 after 20 minutes. It stabilized between 125 and 130 after 30 minutes. The temperature in direct sunlight in the car rose to 141 degrees after 10 minutes, 148 after 20 minutes, and topped out at 153 at 30 minutes."
Clearly, there is no safe duration for leaving a child in a car. "109 degrees would basically be a lethal temperature if you're left in there for an extended period of time," he added.
Jan knows how important it is to inform parents and caregivers of the danger of a child being left in vehicle, even for only a few minutes. He has reported his results on several local television shows and in Bay Area newspapers.
You can read more about Jan's study and see a graphic of his data at http://ggweather.com/heat/index.htm. Kids'nCars, a non-profit organization dedicated to preventing injury and death to children in an around cars, has an informative-and heart-breaking-website at http://kidsncars.org/. Another good site for information on this subject is http://weather.noaa.gov/weather/hwave.html#Heat%20Index%20Chart.
Weather Wise Quiz Question 4: According to the NOAA, between 1936 and 1975, nearly 20,000 people were killed in the United States by the effects of heat and solar radiation. Only one natural hazard is more deadly. Is it: A. Cold, B. Earthquakes, C. Floods, D. Hurricanes, E. Lightning, or, F. Tornadoes?
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You're Brilliant! Answers to Quiz Questions
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Question 1:
The science of baseball statistics is called Sabermetrics, after the Society of American Baseball Research or SABR. According to Andy, their numbers continually note that performances have to be adjusted for Coors Field.
Question 2:
: ET stands for Evapotranspiration, also written as ETo. It is a measurement of the amount of water vapor returned to the air in a given area. It combines the amount of water vapor returned through evaporation (water leaving the earth) with the amount of water vapor returned through transpiration (water leaving plants) to arrive at a total for the area. Effectively, ETo is the opposite of rainfall, and is expressed in the same units of measure. The Vantage Pro Plus and Gro Weather stations use the Penman-Montieth method, as implemented by CIMIS, taking air temperature, relative humidity, wind run, pressure, and solar radiation data to calculate ET. And it doesn't want to call home. That's from a movie, silly.
Question 3:
You like lightning? Move to Singapore, where there are 171 thunderstorm days (days on which one can hear thunder) a year.
Bonus Question:
You better not agree with that. According to the Theater of Electricity at Boston's Museum of Science, it's not the rubber tires that make the car safe. Although rubber is a good insulator, it's not all that much better than air. In order to really protect you, you'd need solid tires about a mile thick. If you knew that it was the metal of the car, and not the tires, you may think it is because the car forms a Faraday Cage. But Faraday Cages work with static electricity, not lightning. The real reason is the skin effect, which puts the current on the outside surface of the metal, not on the inside. In demonstrations at the Theater of Electricity, a person stands inside a metal cage while it is struck by sparks from the giant Van De Graaf generator. He or she can prove the point by touching the inside of the bars, careful not to extend a hand outside. Check out their website at http://www.mos.org/sln/toe.
Question 4:
Plant leaves take in and release gases and water vapor through pore-like openings on their surface called stomata. Around the stomata are specialized cells called guard cells. When the leaf has plenty of moisture, the cells fill up with fluid and get turgid, which makes the stomata open and release water vapor. When the plant has little moisture, those guard cells become empty and flaccid and the stomata close, conserving moisture. Water vapor is also conserved by the waxy cuticle on the leaf surface
Question 5:
A. Only the cold of winter takes more lives than heat.
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Who You Gonna Call?
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Each month after the E-News goes out, we receive messages back. Sometimes the messages are in response to a story we shared; other times they are a request for help of some kind. We read all the emails, answer those we can, and pass the rest on to the appropriate departments.
We think you should know, though, that if you're interested in the fastest possible reply, news@davisnet.com may not be the best place to send your message. Questions about how things work should be addressed to tech support directly at support@davisnet.com. For general information about the products, such as how much cable comes with a station contact sales@davisnet.com. To request a catalog to be sent to you by mail, click here.
Please continue to send your comments, weather URLs, and story suggestions to news@davisnet.com. We look forward to getting your comments and any responses you have to the E-newsletter. Member participation is what keeps the E-newsletter alive and kicking.
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Well, thats it for this month. You'll be hearing from us again next month!
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