Weather Radar Goes Miniature 167
quackking writes "As reported today in the Boston Globe, the NSF has committed at least $17M to build out a new network of miniature (at least in comparison with today's monsters) weather radars. This is to radar what Beowulf clusters are to the mainframe; the scientists at U Mass Amherst project that eventually a weather radar node will be deployable for under $20K! Now to figure out how to get real-time access to this mesh of sensors and create a really cool screensaver..."
Super! (Score:1, Troll)
Heh... (Score:1, Funny)
Re:Heh... (Score:2)
Re:Heh... (Score:1)
Weather Sensor Array (Score:5, Interesting)
Granted, low cost radars like this are a step towards getting high-resolution data for more areas, but something like what I've described could possibly help answer larger climate-related questions.
Re:Weather Sensor Array (Score:5, Funny)
Sincerely,
John Ashcroft
Re:Weather Sensor Array (Score:3, Funny)
Face recognition with clouds. Now that sounds like fun:
Latest sightings from RadarNet for the last 24 hours - date 24th December 2003:
Re:Weather Sensor Array (Score:5, Informative)
Re:Weather Sensor Array (Score:1)
Now we know.
Global warming is an artifact of weather service jokes.
Re:Weather Sensor Array (Score:2)
Now we know you're lying. Delaware has 3 local broadcasters! Ha! Who would believe such hyperbole. We all know that Delaware is so small that a single antenna barely fits in the whole state.
Nice try.
-molo
Re:Weather Sensor Array (Score:2)
"Delmarva" has a lot more then 3 local broadcasters. The entire area is called "DelMarVa" and kinda shares a bunch of em.
You feel silly now doncha. The radio channel guys are the worst about blatantly lifting a TAF. The coolest thing about Deleware was having Joe, the guy that lived in the trailer at the beach, call us up to let us know when fog was rolling in. It made us look really good. It's hard to forecast fog accurately.
Re:Weather Sensor Array (Score:2)
Couldn't skycover be done with a webcam pointing up, possibly with a fisheye lens to grab the entire "dome" of the sky? The image could be sent to a central office, and interpreted by trained personnel there. What other observations need a human presence?
Re:Weather Sensor Array (Score:2)
When you are talking about the sky it works like this. Clouds are reported in layers based on sky coverage and height. Lets say I had 3/10ths of the sky covered by some stuff at 1000 feet, 3/10ths altocu at 9000 feet, and some highcloud1 at 25000. The sky coverage would look like this:
10 SCT 90 BKN 250 BKN
A webcam isn't going to be able to do that.
Re:Weather Sensor Array (Score:2)
Firstly I'm not a weather man, but a long time ago I know some people who did do that kind of thing (well they were more programmers than meteorologists), but they were always crying out for more data. They didn't want the butterfly whos wings are setting off all those hurricanes but they definitely want finer grained data.
The big problem is that a lot of the weather happens at sea. Apparently many ships have automa
Re:Weather Sensor Array (Score:2)
Re:Weather Sensor Array (Score:2)
Oh an satellites were great, but only for
every mile (Score:2)
Re:Weather Sensor Array (Score:5, Interesting)
I also think they should have GPS in them, so if they're moving, they can report accurately. This will let you put them on ships, buoys (tidal variation) and so on. Those GPS MOUSE usb gps devices are going for like fifty bucks on ebay, so how much can it cost to build them? Ten bucks? Twenty maybe? Well worth it in either case.
Re:Weather Sensor Array (Score:3, Informative)
Oklahome Mesonet [ou.edu]
West Texas Mesonet [ttu.edu]
MesoWest [utah.edu]
Note: The Texas Mesonets are particularly interesting during landfall of tropical cyclones!
A little math (Score:3, Informative)
Now, the sensors you propose, at $200 each, could get you 85,000 sensors for $17M. That's one sensor per 892 sq mi -- a bit smaller than Ocean County, NJ.
Not quite "every couple of miles", but not too bad. Still, I'd have to think the radar might return more data points anyway, sweeping across the l
Re:Weather Sensor Array (Score:2)
Well, it'd be NICE to do it for under $200, but as of right now, it's not QUITE possible
You can setup a Moderately accurate temp and wind station for $79, BUT the temp sensor is enclosed (NOT vented), so it tends to read high, and you need a computer
Look at AAG Electronics [aagelectronica.com]
Adding humidity (which adds a more accurate thermometer), Pressure, and rain adds about $150
There IS quite a network in North America, with SOME holes in it - look at NOAA's Mesonet [noaa.gov]
Re:Weather Sensor Array (Score:1)
I believe you have the way that post-humans will interact with the outside world when they choose to. Want to travel to Tokyo? Just start sampling the sensor grid there to and use it to drive your sensory inputs.
Of cour
Re:Weather Sensor Array (Score:2)
Uh... Isn't that like using your mail server to route messages to your pager to let you know that said mail server isn't working properly?
(-:
S
Re:Weather Sensor Array (Score:2)
At last all the data is there. Someone ingenious can write an app to gather all that data and make some real-time weather maps
Re:Weather Sensor Array (Score:2)
The challenge to Xaroth's approach lies not in the deployment of these systems (if they're $200 a pop that's easy), but rather in the information harvesting and data collection. I can't imagine that everyone will own the same type of unit, and so how do you manage all these different protocols?
I'm working on a project called WeatherNet (http://meta-tools.sf.net/wxnet) and I'm trying to solve the problem I've
Imagine (Score:1, Funny)
Thanks for the metaphor. (Score:2)
It's so clear now!
bad karma day (Score:3, Funny)
But can you mod linux onto it? Failing that; In Soviet Russia, the weather radar miniturizes YOU.
Be your own weatherman? (Score:1)
Re:Be your own weatherman? (Score:1)
Re:Be your own weatherman? (Score:2, Informative)
http://weather.noaa.gov/pub/SL.us008001/DF.of/D C
Different products, different sites...all updated as soon as the data comes in from the radar site. Then you can use the Geo::Nexrad perl code from sourceforge to parse at least the radial products.
In a few months, NOAA will get further into testing of their new DVB satellite delivery and you'll be able to get all of the NOAA data & imagery with a small satellite dish and a DVB card compatible with Linux.
MOD THEM DOWN (Score:3, Insightful)
Can we at least install on /. some neural-network scanners that would mod all such obsolete jokes down?
Re:MOD THEM DOWN (Score:1)
1. Install network of miniature radars
2. ????
3. Profit!
Re:MOD THEM DOWN (Score:5, Funny)
Can we at least install on /. some neural-network scanners that would mod all such obsolete jokes down?
Perhaps a perl plugin module where you can upload your own filter code to prescan the comments....
/. would probably need a cluster of some sort to run it though...
Re:MOD THEM DOWN (Score:2)
Re:MOD THEM DOWN (Score:2)
There is spam in email, SMS and even NNTP but the society is somehow begin fighting against it using filters and laws. As for today the laws do not work, so we are filtering. The laws (karma one) do not work on /. either. So we need a filter for it.
Availability (Score:3, Insightful)
Not long after this is implemented, I hope to see various news agencies provide not only forecasting based on information provided from the new equipment, but raw data (and maybe not-so-raw data...like images) as well.
This could be a great resource for researchers and the slashdot crowd alike.
Re:Availability (Score:3, Funny)
Re:Availability (Score:2)
Re:Availability (Score:3, Informative)
Re:Availability (Score:2)
Just thought I'd throw this out there.
Many benefits (Score:4, Informative)
First of all, the amount of energy you have to use to send a signal decreases with distance squared. So covering an area with with several small radar stations should keep the working signal in the relatively strong range with less power consumption.
Also, there will be a lot of overlap near the edges of the stations' zones, reducing anomolous readings through error checking. (This would have to be implemented. It wouldn't happen on its own.)
And it also opens the door for the possibility of trasmitting signals from one station to the next instead of always waiting for the ping to come back. That could allow for new methods and better results and more accuracy.
Re:Many benefits (Score:1, Informative)
Signal from Radar to Pulse Volume Space is related to distance squared... then a fraction of the energy is returned by impedence discontinuities in the pulse volume... then distance back also follows the inverse square law... so it's FAR worse than stated... that's why lots more of these puppies will be good news.
Home Brewed Radar? (Score:3, Interesting)
Re:Home Brewed Radar? (Score:2)
Re:Home Brewed Radar? (Score:1)
Re:Home Brewed Radar? (Score:2)
Re:Home Brewed Radar? (Score:2, Interesting)
You may be onto it. With mass production the way it is, I saw microwave ovens at Wal-Mart the other day, I think it was $39.95 or something like that. Now, these things have a 600 watt or more 2.45GHz magnetron and associated 3KV power supply in them. At that price? I don't know how they did it. But nevertheless, it shows the price points achievable with mass production.
Now, you drive that maggie with a spread-spectrum code
Re:Home Brewed Radar? (Score:2)
no more 'objects in mirrors' BS, folks lurking in your blind spot, or parking incidents...
I suppose alternately you could mount it on your house and be the local lookout post for the foil-hat crowd...
Re:Home Brewed Radar? (Score:2, Interesting)
Re:Home Brewed Radar? (Score:2)
Maybe you could start with something like this [cox.net].
A cool picture is here [cox.net].
Re:Home Brewed Radar? (Score:2)
A friend of my dad used to work on a ship many moons ago. He said that birds would fly in front of the radar and be cooked in mid-air.
No, I've never home-brewed a radar system.
Re:Home Brewed Radar? (Score:2)
However, they have assorted small radars for use on small craft, which are not powerful enough to cook you, but they're nothing you'd want to be trans
Re:Home Brewed Radar? (Score:2)
Really cool!? (Score:4, Funny)
Err, if you want a really cool screensaver, look out a window -- wind effects, sky, clouds -- all in real-time. Amazing, and not $17m!
Re:Really cool!? (Score:1)
Re:Really cool!? (Score:2)
Now imagine a window large enough to see the entire USA. All without breaking or distorting and a chair in the right position to see it all - Priceless!
p2p to distribute the data (Score:3, Insightful)
Hmmm, you know, p2p would be the perfect way to distribute said data among all the people who need access to it (if it was a screensaver and so popular and contained realtime feed...)
Re:p2p to distribute the data (Score:2)
I dont need to mention who is going to sue you for you know what violation.
But it would be kinda sweet to have a whole weather data system available. Kinda like weather.com
Re:p2p to distribute the data (Score:2)
Missing the Point... (Score:5, Interesting)
With the private companies coming on, you can bet that there's more than just weather radar applications, though that's not a bad place to start. Still, you've got to wonder why Raytheon would pump $5M into it if there wasn't something in it for them...
Re:Missing the Point... (Score:1)
Re:Missing the Point... (Score:1)
They are currently working on a missle system called claws. The system is an air defence system and ideally deployed from the back of 2 HMMWV's one to carry the missle system and one to carry a small radar/guidence system.... hmmmmm
Re:Missing the Point... (Score:3, Interesting)
Raytheon makes the most radar systems in the U.S.. They make most of the radar systems in boats and in the planes you fly in as well as those at the airport. Who else would you want to make them?
I'm not sure Raytheon could make radars that do more than track weather for ultra-cheap (relatively). Radars are very specifically designed for different purposes. It would involve some heavy software relianc
biological attack? (Score:2, Insightful)
What's the point if the system can't detect the biological/chemical element in question? Even if they knew where the element was released, and they could track the low-level winds, I doubt they could accurately predict how it would disperse. Even with more accurate & detailed data, the weather is a very chaotic and unpredictable system. But at least we'll b
Re:biological attack? (Score:2)
Using Phased Array Radar? (Score:5, Informative)
Another benefit of phased radar array is that the scanning speed can be upgraded with better computer equipment with higher bandwidth and number crunching capabilities.
-Cyc
Re:Using Phased Array Radar? (Score:2)
To implement PAR would mean a cost-savings on the sum of several million on maintenance. The mechanical plant would be reduced to the gantry used to do exterior work on the panels whenever necessary. And on the upshot, there would be graceful degredation, when a element would fail, the other e
Re:Using Phased Array Radar? (Score:2, Informative)
Shamless plug for the 2004 FY proposal.. I wish them luck!
UNATCO (Score:1)
array makeup question (Score:2, Insightful)
Would it be possible to have the individual nodes of the array be cell phone towers using the existing signals they are constantly transmitting for use in radar imaging. I understand the wavelength is different, but would cell phone length waves still interfere enough to return a proper reading?
just a thought of using a existing setup for data.
Evil uses- (Score:1)
Cell Phone Tower Infastructure (Score:1)
Parasitic radar (Score:4, Interesting)
I wonder if it's practical for a network of weather radars. A receive-only radar should be cheaper and have less regulatory hurdles to jump.
Re:Parasitic radar (Score:1)
Completely covert.
If you want an example of one working, just connect rabbit ears to your TV. Tune in a local station, and walk around the room. Note your presence and location in the room has an effect on the image on the screen, and by standing in certain locations, you can often disrupt the beam so badly the set barely receives a usable signal at all.
I have seen this same technique used for detecting the presence of people in stores after closing. The thing
Beowulf (Score:1)
seriously, this is great for UFO watching (Score:1)
New Mexico has flight radar, I don't know what the difference is, but either way, enabling radar in a backyard size package is interesting to say the least.
Do it with wireless networks? (Score:2)
It just occured to me that 802.11 IIRC runs on a similear frequency to weather radar (at least those that are running on 2.4 GHz). Could you build a 802.11(letter) station with an ultra sensitive reciever, and while transmitting, look for echo returns and figgure out distance, and from there extrapulate some data. Obviously you would need some triangelation with other nearby stations to figgure out where things are (the antennas are not directional or moving so you would just get a return "there is someth
More Small Tech... (Score:1)
Re:More Small Tech... (Score:2)
Say goodbye to stealth technology (Score:2)
Think about it for a second.
Stealth planes rely on their low radar cross section. With a gigantic weather array broadcasting a signal from all possible angles at least one of those dishes is going to catch that stealth aircraft on its wide side.
Detecting the plane will just be a matter of looking for the anomolies.
Re:Say goodbye to stealth technology (Score:2)
From the front, back, and sides there are no surfaces that are normal to the angle of observation. But from below it's flat as a pancake.
Re:Say goodbye to stealth technology (Score:2)
Re:Say goodbye to stealth technology (Score:2)
Although these are weather radars which as said before don't see through clouds and are doppler, not passive.
lets remember what these things are for (Score:2)
Volunteers can provide High Density (Score:3, Informative)
OpenGIS (Score:2, Informative)
This data could then be incorporated into your own personal Web enabled apps utilizing an open source product like U of MN Mapserver [umn.edu]
Go Us... (Score:2)
Re:oh my god... (Score:2)
Re:oh my god... (Score:1, Funny)
Links to Jokes are all around us! [zdnet.com]
BUT (Score:2)
Re:Don't we already have the equivalent? (Score:1)
Re:Don't we already have the equivalent? (Score:2)
I guess my thought is combining what we already have in the sensors and using the Doppler radar already available throughout the country, this is
Re:Don't we already have the equivalent? (Score:2, Interesting)
Well, no, and that's the point. Current radar installations are huge and expensive. As a consequence, they are spread out hundreds of miles apart 'cause we can only afford a few. The coverage that they provide is really not all that great because radar only sees by reflecting off objects. Whatever is behind that object is invisible (in this case; object == cloud). With these smaller radars every 20 miles, the number of potential blind spots drops dramatically.
Additio
Re:Don't we already have the equivalent? (Score:1)
Not in Boulder, CO (Score:4, Funny)
Re:beowulf (Score:1)
Re:beowulf (Score:2)
Re:It had to be said! (Score:3, Insightful)
Well, somebody should.
Re:eyecon0meter also used for meteorological repor (Score:2)