Dr. Jeff Masters' WunderBlog

Mine always goes to Dallas before anywhere else, so a few more hops. But my ping responses are way down compared to earlier...

Tracing route to www.wunderground.com [38.102.136.104]
over a maximum of 30 hops:

1 1 ms 2 ms 1 ms 12.107.57.193
2 11 ms 11 ms 11 ms 12.87.148.193
3 18 ms 17 ms 18 ms cr2.hs1tx.ip.att.net [12.123.212.214]
4 18 ms 17 ms 18 ms cr1.dlstx.ip.att.net [12.122.28.157]
5 17 ms 16 ms 16 ms ggr2.dlstx.ip.att.net [12.122.139.197]
6 17 ms 17 ms 17 ms 192.205.36.14
7 17 ms 17 ms 18 ms xe-1-0-0.er1.dfw2.us.above.net [64.125.27.77]
8 23 ms 51 ms 23 ms xe-1-2-0.er1.iah1.us.above.net [64.125.30.57]
9 50 ms 106 ms 50 ms xe-1-3-0.er1.lax9.us.above.net [64.125.26.122]
10 61 ms 62 ms 61 ms xe-4-2-0.er1.sjc2.us.above.net [64.125.24.18]
11 61 ms 61 ms 61 ms xe-0-1-0.mpr1.sfo7.us.above.net [64.125.26.57]
12 61 ms 61 ms 62 ms 64.124.65.86
13 61 ms 64 ms 61 ms 38.102.136.100
14 82 ms 61 ms 61 ms 38.102.136.104

Trace complete.

Quoting Floodman:


Well, you are also limited by the local network; if you're hard wired to standard cabling then you;re likely never going to see more than about 80mbps in bound, given line noise and other users on your network...if you have gigabit wiring, more like 350mbps...if you;re wirless, you;re likel;y going to be stuck at 48 true

Ahhh, but we have fiber optic NICs and switching we could use...

Even more fun, our HPC system, currently building, has QDR Infiniband...40 Gbit/s and ~140 nanosec latency...

Fun world I live in over here.

Thought this was a neat contraption. Could be used for relief efforts in many places in the world:



The Hippo Water Roller Project
http://www.hipporoller.org/

[This is in no way to be construed as advising anyone anywhere how or where to send their charity donations. That is completely up to each individual or family. I just thought it showed creativity and elegance in its simple design.]

Quoting Floodman:


Looking for some snow, are we?

Hey Flood, they can keep the snow in MI, we may see some freezing drizzle Fr AM, but the latest forecast indicates DFW should be mostly a rain event!

Quoting Floodman:


So you're saying it takes 100,000 years to regrow a forest? Just seeking a little clarity...

Yes - and i was refering to rainforest, which acts as earth lungs. (part of the Biogeochemical_cycle)
The forest wiki has an overview of the diffrent kinds of forest types.
http://en.wikipedia.org/wiki/Forest

though it is quiet complex, as we have a big specie diversity in the forest - rainforest. This interactions between the diffrent cycles take a considerable time to form. Though it is possible to grow forest faster - but the biodiversity and the full force of biogeochemical factors take a much longer time to form.

Because ecology deals with ever changing ecosystems, both time and space must be taken into account when describing ecological phenomena.[9] In regards to time, it can take thousands of years for ecological processes to mature. The life-span of a tree, for example, can pass through different successional or seral stages leading to mature old-growth forests. The ecological process is extended even further through time as trees topple over and decay.
http://en.wikipedia.org/wiki/Ecology

Biogeochemistry
Ecologists study and measure nutrient budgets to understand how these materials are regulated and flow through the environment.[2][65][126] This research has led to an understanding that there is a global feedback between ecosystems and the physical parameters of this planet including minerals, soil, pH, ions, water and atmospheric gases. There are six major elements, including H (hydrogen), C (carbon), N (nitrogen), O (oxygen), S (sulfur), and P (phosphorus) that form the constitution of all biological macromolecules and feed into the Earth's geochemical processes. From the smallest scale of biology the combined effect of billions upon billions of ecological processes amplify and ultimately regulate the biogeochemical cycles of the Earth. Understanding the relations and cycles mediated between these elements and their ecological pathways has significant bearing toward understanding global biogeochemistry.

The ecology of global carbon budgets gives one example of the linkage between biodiversity and biogeochemistry. For starters, the ocean is estimated to hold 40,000 Gt carbon, vegetation and soil is estimated to hold 2070 Gt carbon, and fossil fuel emissions are estimated to emit an annual flux of 6.3 Gt carbon.[159] At different times in the Earth's history there has been major restructuring in these global carbon budgets that was regulated to a large extent by the ecology of the land. For example, through the early-mid Eocene volcanic out gassing, the oxidation of methane stored in wetlands, and seafloor gases increased atmospheric CO2 concentrations to levels as high as 3500 ppm.[160] In the Oligocene, from 25 to 32 million years ago, there was another significant restructuring in the global carbon cycle as grasses evolved a special type of C4 photosynthesis and expanded their ranges. This new photosynthetic pathway evolved in response to the drop in atmospheric CO2 concentrations below 550 ppm.[161] Ecosystem functions such as these feed back significantly into global atmospheric models for carbon cycling. Loss in the abundance and distribution of biodiversity causes global carbon cycle feedbacks that are expected to increase rates global warming in the next century.[162] Global warming melting large sections of permafrost creates a new mosaic of flooded areas where decomposition emits methane (CH4). Hence, there is a relationship between global warming, decomposition and respiration in soils and wetlands producing significant climate feedbacks and alters global biogeochemical cycles.

Ecosystem services and the biodiversity crisis
Ecosystems of planet Earth are coupled to human environments. Ecosystems regulate the global geophysical cycles of energy, climate, soil nutrients, and water that in turn support and grow natural capital (including the environmental, physiological, cognitive, cultural, and spiritual) dimensions of life. Ultimately, every manufactured product in human environments come from natural systems.[189] Ecosystems are considered common-pool resources because ecosystems do not exclude beneficiaries and they can be depleted or degraded.[196] For example, green space within communities provides common-pool health services. Research shows that people who are more engaged with regular access to natural areas have lower rates of diabetes, heart disease and psychological disorders.[197] These ecological health services are regularly depleted through urban development projects that do not factor in the common-pool value of ecosystems.
http://en.wikipedia.org/wiki/Ecology


How long does it take for a rainforest to grow?
Best Answer - Chosen by Voters
Most current old growth forests are millions of years old. However, it only takes maybe 60 years, at the very least, for a forest to regenerate from a clear cut state. This forest would be in an early successional stage and probably would take more like 100-200 years, on average, to become a "rain forest". Please note that the regenerating forest will be marked different from the old growth in dominant forest species and the wildlife it supports.
http://answers.yahoo.com/question/index?qid=20080909025330AAwsLlv

Rainforests are forests characterized by high rainfall, with definitions setting minimum normal annual rainfall between 1750–2000 mm (68-78 inches). The monsoon trough, alternately known as the intertropical convergence zone, plays a significant role in creating Earth's tropical rain forests.

From 40 to 75% of all species on Earth are indigenous to the rainforests.[1] It has been estimated that many millions of species of plants, insects, and microorganisms are still undiscovered. Tropical rainforests have been called the "jewels of the Earth", and the "world's largest pharmacy", because of the large number of natural medicines discovered there.[2] Rainforests are also responsible for 28% of the world's oxygen turn over, often misunderstood as oxygen production,[3] processing it through photosynthesis from carbon dioxide and storing it as carbon through biosequestration.
http://en.wikipedia.org/wiki/Rainforest

A bumblebee pollinating a flower, one type of ecosystem service

yay snow :P

Quoting Floodman:


Looking for some snow, are we?

I've been empathizing with AstroHurricane001 - He has complained (more than once) about Texas getting more snow than where he lives in Ontario. I'm in SW Michigan. We got a couple of feet of snow earlier this month but most of it melted with the recent rain/thaw. I'm happy to see it snowing again. We get a lot of lake-effect snow here.

The timing of the new snow is great. I'm a volunteer at Fernwood Botanical Garden and we are taking local school kids on a hike in the woods on Friday to look for and identify animal tracks. (Predicted high is 17F - better dig out my long underwear.)

Just reread my post and saw an error on it.
Should have read:

I had just done the same thing and it was dreadfully slow, but I had been doing some major copying across my little Belkin 54G. So I restarted everything and then COULDN'T connect to anything. Skype worked so I had connectivity. Finally connected and did this.

still averaging 112ms lol

My NWS forecast through Sunday night:

Tonight: Snow before 3am. Low around 13. West wind between 7 and 13 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of around an inch possible.

Thursday: Mostly cloudy, with a high near 18. Wind chill values as low as -3. Northwest wind between 14 and 17 mph, with gusts as high as 22 mph.

Thursday Night: Mostly cloudy, with a low around 8. Wind chill values as low as -1. North northwest wind between 7 and 9 mph.

Friday: Mostly cloudy, with a high near 21. Wind chill values as low as -3. North northeast wind between 7 and 11 mph.

Friday Night: Mostly cloudy, with a low around 7. East northeast wind between 8 and 11 mph.

Saturday: Partly sunny, with a high near 21.

Saturday Night: Partly cloudy, with a low around 9.

Sunday: Mostly sunny, with a high near 25.

Sunday Night: Partly cloudy, with a low around 14

Quoting tornadodude:
still averaging 112ms lol

Universities are notoriously bad when it comes to their latency, because students are notorious for downloading movies and music all the time, thus soaking up tons of bandwidth.

Quoting PcolaDan:


Universities are notoriously bad when it comes to their latency, because students are notorious for downloading movies and music all the time, thus soaking up tons of bandwidth.

Lol that is very true

Quoting tornadodude:


Lol that is very true

Can you say torrent? LOL

Quoting PcolaDan:


Can you say torrent? LOL

can "U"? Lol

Continued foul weather slows evacuation of stranded tourists in Peru
A weather alert has been issued for southern Peru, which has received record rainfall over the past three days, according to the Peruvian national weather service.

More rain is expected through Friday, though less than what's already drenched the region. A state of emergency has been declared in southeastern Peru, which includes Machu Picchu, according to Javier Velasquez, the president of Peru's Cabinet.

Machu Picchu is the ancient Incan city on a mountain in the Andes, standing nearly 8,000 feet -- 2,340 meters -- above sea level in a tropical mountain forest.

Read full article and watch video of flooding.
http://www.cnn.com/2010/WORLD/americas/01/27/peru.machu.picchu.floods/index.html?hpt=Sbin

WOW!

"French rescuers have pulled a teenage girl out of the rubble of the destroyed College St. Gerard in Port-au-Prince, a stunning recovery 15 days after an earthquake devastated the city."

http://www.nola.com/news/index.ssf/2010/01/haiti_earthquake_survivor_pull.html

Quoting tornadodude:
still averaging 112ms lol

my average is 196ms.
where is the server based?

Quoting atmoaggie:
WOW!

"French rescuers have pulled a teenage girl out of the rubble of the destroyed College St. Gerard in Port-au-Prince, a stunning recovery 15 days after an earthquake devastated the city."

http://www.nola.com/news/index.ssf/2010/01/haiti_earthquake_survivor_pull.html

OH WOOOOW

Cold killed numerous Keys manatees, bleached large stands of coral Frigid waters in the Keys during this month's record cold snap killed manatees and corals, in addition to untold numbers of fish, biologists say.

"This is an unprecedented event as far as the Keys marine environment is concerned," said Billy Causey, southeast regional director for the National Marine Sanctuaries Program.

"This one will do down in the history books," Causey said. "We'll be cleaning up after this one for quite some time."

Seven dead manatees were found in Upper Keys waters between Jan. 18 and 22, part of a record 107 manatees killed statewide from Jan. 1 to 23.

The 107 dead manatees nearly doubles the previous record of 56 manatee deaths in a single month, set in January 2009.

Biologists with the Florida Fish and Wildlife Conservation Commission reported that 77 deaths are directly attributable to "cold stress," and several others likely died as a result of the cold.

"Any time the water gets below 60 degrees, manatees don't do well," said Mary Stella of the Dolphin Research Center on Grassy Key. "It was colder tan that for a long time."

Meanwhile, shallow-water corals near shore and in mid-channel patch reefs have suffered from one of the worst cold-water bleachings ever recorded, Causey said.

No winter coral bleachings since a 1977-78 incident -- when huge stands of staghorn coral were wiped out -- have been as severe, Causey said.

"So much of the coral that bleaches in a cold-water event dies," Causey said. "In warm-water bleachings, the coral suffers but it has a chance to recover if conditions improve."

Divers from The Nature Conservancy and Mote Marine Laboratory will join state and federal staff in a concentrated effort over the next two weeks to assess the damage to South Florida's corals.

"We saw a lot of very recent mortality, especially on the mid-channel and nearshore reefs," said Cory Walter, director of the BleachWatch program from Mote's Lower Keys facility.

"The cold seems to have affected all species equally, though we'll know more after we get reports from this wider monitoring effort," Walter said after Mote surveys off Summerland Key and Big Pine Key.

"The offshore reefs seemed to be faring better," she noted.

Causey said the Florida current apparently carried enough warm water into the reef to moderate temperatures there. "We had reports from dive operators that the water was very clear so that means the Florida current was washing in and acting like great big thermostat," he said.

This year's record cold in mid-January lasted nearly twice as long as the deadly 1977-78 event, Causey said. "That was about three days," he said. "This one was a week to 10 days."
http://www.keysnet.com/news/story/182314.html

Quoting AussieStorm:

my average is 196ms.
where is the server based?

um not sure to be honest, probably here in the building. most likely down stairs

Quoting AussieStorm:

Not knowing diddly squat about earthquakes, I wonder if this is one of those with lift or side to side motion. That seems to have a bearing on the possiblity of tsunamis, doesn't it?

Coral Reef
Often called “rainforests of the sea”, coral reefs form some of the richest and most diverse ecosystems on earth. They occupy less than one percent of the world ocean surface, about half the area of France, yet they provide a home for 25% of all marine species, including fishes, molluscs, echinoderms and sponges.[1]

Paradoxically, coral reefs flourish even though they are surrounded by ocean waters that provide few nutrients. They are most commonly found at shallow depths in tropical waters, particularly in the Pacific Ocean, but deep water and cold water corals exist on a much smaller scale.

Coral reefs deliver ecosystem services to tourism, fisheries and shoreline protection. The annual global economic value of coral reefs has been estimated at $30 billion. However, coral reefs are fragile ecosystems, partly because they are very sensitive to water temperature. They are under threat from climate change, ocean acidification, blast fishing, cyanide fishing for aquarium fish, overuse of reef resources, and harmful land-use practices. High nutrient levels such as those found in runoff from agricultural areas can harm reefs by encouraging excess algae growth.

Most coral reefs were formed after the last glacial period when melting ice caused the sea level to rise and flood the continental shelves. This means that most coral reefs are less than 10,000 years old. As coral reef communities were established on the shelves, they built reefs that grew upwards, keeping pace with the rise in sea level. Reefs that didn't keep pace could become drowned reefs, covered by so much water that there was insufficient light for further survival.[3]

Coral reefs are also found in the deep sea away from the continental shelves, around oceanic islands and as atolls. The vast majority of these ocean coral islands are volcanic in origin. The few exceptions have tectonic origins where plate movements have lifted the deep ocean floor on the surface.

In 1842 Charles Darwin published his first monograph, The Structure and Distribution of Coral Reefs.[4] There he set out his theory of the formation of atoll reefs, an idea he conceived during the voyage of the Beagle. His theory was that atolls were formed by the uplift and subsidence of the earth's crust under the oceans.[5] Darwin’s theory sets out a sequence of three stages in atoll formation. It starts with a fringing reef forming around an extinct volcanic island as the island and ocean floor subsides. As the subsidence continues, the fringing reef becomes a barrier reef, and ultimately an atoll reef.

As an example of how coral reefs have formed on continental shelves, the current living reef structure of the Great Barrier Reef began growing about 20,000 years ago. The sea level was then 120 metres (390 ft) lower than it is today.[8][9] As the sea level rose, the water and the corals encroached on what had been the hills of the coastal plain. By 13,000 years ago the sea level was 60 metres (200 ft) lower than at present, and the hills of the coastal plains were, by then, continental islands. As the sea level rise continued most of the continental islands were submerged. The corals could then overgrow the hills, forming the present cays and reefs. The sea level on the Great Barrier Reef has not changed significantly in the last 6,000 years,[9] and the age of the present living reef structure is estimated to be between 6,000 and 8,000 years.[10] Although the Great Barrier Reef formed along a continental shelf, and not around a volcanic island, the same principles apply as outlined by Darwin's theory above. The Great Barrier Reef development has stopped at the barrier reef stage, since Australia is not about to submerge. It has formed the world's largest barrier reef, 300–1000 metres (330-1100 yards) from shore, and 2000 kilometres (1200 miles) long.[11]

Healthy coral reefs grow horizontally from 1 to 3 centimetres (0.39 to 1.2 in) per year, and grow vertically anywhere from 1 to 25 centimetres (0.4–12 in) per year; however, they are limited to growing above a depth of 150 metres (490 ft) due to their need for sunlight, and cannot grow above sea level.


Locations



This map shows areas of upwelling in red. Coral reefs are not found in coastal areas where colder and nutrient rich upwellings occur

Darwin's Paradox
During his voyage on the Beagle, Darwin described tropical coral reefs as oases in the desert of the ocean. He reflected on the paradox that tropical coral reefs, which are among the richest and most diverse ecosystems on earth, flourish when they are surrounded and supported by tropical ocean waters that provide hardly any nutrients. It has been a challenge for scientists to explain this paradox.

Coral reefs cover just under one percent of the surface of the world’s ocean, yet they support over one-fourth of all marine species. This huge number of species results in complex food webs, with large predator fish eating smaller forage fish that eat yet smaller zooplankton and so on. However, all food webs eventually depend on plants, which are the primary producers. And the primary productivity on a coral reef is very high, resulting in a typical biomass production of 5-10g C m−2 day−1.[25]

Tropical waters are often described as crystal clear. This is because they are deficient in nutrients and drifting plankton. The sun shines year round in the tropics, warming the surface ocean layer so it is less dense than subsurface layers. The warmer water is separated from the cooler water by a stable thermocline, where the temperature makes a rapid change. This keeps the warm surface waters floating above the cooler deeper waters. There is little exchange between these layers. Organisms that die in aquatic environments generally sink to the bottom where they decompose. This decomposition releases nutrients in the form of nitrogen, phosphorous and potassium. These nutrients, N, P and K, are necessary for plant growth, but in the tropics they are not directly recycled back to the surface.[7]

Plants are the base of the food chain, and need sunlight and nutrients if they are to grow. In the ocean these plants are mainly a type of plankton, microscopic phytoplankton which drift in the water column. They need sunlight for photosynthesis, which powers carbon fixation, so they are found only in the surface waters. But they also need nutrients. Phytoplankton rapidly use any nutrients in the surface waters, and in the tropics these nutrients are not usually replaced because of the thermocline.[7]

Climate Change
Any rise in the sea level due to climate change would effectively ask coral to grow faster to keep up. Also, water temperature changes can be very disturbing to the coral. This was seen during the 1998 and 2004 El Niño weather phenomena, in which sea surface temperatures rose well above normal, bleaching or killing many coral reefs. High seas surface temperature (SSTs) coupled with high irradiance (light intensity), triggers the loss of zooxanthellae, a symbiotic algae, and its dinoflagellate pigmentation in corals causing coral bleaching. Zooxanthellae provides up to 90% of the energy to the coral host. Reefs can often recover from bleaching if they are healthy to begin with and water temperatures cool. However, recovery may not be possible if CO2 levels rise to 500 ppm because there may not be enough carbonate ions present.[61] Refer to Hoegh-Guldberg 1999 for more information.

Warming may also be the basis of a new emerging problem: increasing coral diseases. Warming, thought to be the main cause of coral bleaching, weakens corals. In their weakened state, coral is much more prone to diseases including black band disease, white band disease and skeletal eroding band. If global temperatures increase by 2 °C, coral may not be able to adapt quickly enough physiologically or genetically.[62] It has been estimated that, in order to counter the threat of ocean acidification through global warming, a reduction of up to 40% of current emissions is needed, and up to 95% by 2050. This requires emission reductions larger than the reductions currently proposed for these dates by the EU
http://en.wikipedia.org/wiki/Coral_reef

Tsunamigenesis Earthquake Prediction and its Mechanism Through Seismic Signals
Chew, S.-; Wang, Y.-; Kuenza, K.-
American Geophysical Union, Fall Meeting 2006, abstract #S21A-0134


One of the key causes of tsunami is underwater earthquake of sufficiently large magnitude. However, not all underwater earthquakes with large magnitudes produce tsunamis. December 2004 Sumatra earthquake produced one of the deadliest tsunamis while March 2005 Sumatra earthquake, which has comparable magnitude and similar epicenter, did not result in the formation of any major tsunami. The generation of tsunamis with significant magnitudes is a complex phenomenon as its mechanism is strongly linked to fault structure and rupture mechanism. The frequency content of the seismic signal may provide a clue to the tsunamigenic nature of the earthquakes. Seismic wave (4000-6000 m/s) travels 20 to 30 times faster than tsunami wave (200 m/s). Thus, a tsunami prediction based on seismic signals instead of tsunami waves could deliver warning without much time delay. This study investigates the method of predicting tsunami by analyzing the frequency content of the seismic waves and relating it to the possible mechanism of tsunami generation. This paper presents the result of a research study which uses the method of Fast Fourier Transform (FFT) to extract the frequency components from the seismograms of a number of tsunamigenic and non-tsunamigenic earthquakes. The results indicate that tsunamigenic earthquakes have higher amplitude in the low frequency range (f < 0.15 Hz) and lower amplitude in the high frequency range (f = 0.15-0.3 Hz) compared to the non-tsunamigenic earthquakes. The observation supports the proposed mechanism of slow fault rupture in view of the long period nature of the tsunamigenic earthquakes. The frequency content of the seismic signal was also explored with Wavelet Analysis. These techniques, which utilizes frequency component of the seismic signals, have a great potential to be an effective component of the Tsunami Warning System, which at present mainly relies on the magnitude and location of earthquake as the determining factor in predicting the generation of tsunami.

6.1 quake hits Philippines

MANILA - A 6.1 MAGNITUDE quake hit the Philippines region early on Thursday, US scientists said, but no tsunami warning was immediately issued.
http://www.straitstimes.com/BreakingNews/SEAsia/Story/STIStory_483159.html

Quoting tornadodude:


hey Hydrus, you have a winter storm watch now, right?

Yes, but there not sure how bad its going to be.

There also was a 4.1 in Haiti

Updates on Olga?

Quoting AussieStorm:

my average is 196ms.
where is the server based?

Because of your proximity to the rest of the world, I expect your time to be a little longer. Curious what it is to Australian web sites.

64 bytes from 38.102.136.104: icmp_seq=19 ttl=242 time=197 ms

so guys when or what day will we have our cold winter blast ?

The wunderground server is Located in San Francisco

To an Australian web site. Notice the slowdown once it hits Australia at hop 11 of the trace route.

C:\>ping www.thewoodworks.com.au

Pinging server.bisshop.biz [202.125.168.160] with 32 bytes of data:

Reply from 202.125.168.160: bytes=32 time=268ms TTL=49
Reply from 202.125.168.160: bytes=32 time=250ms TTL=49
Reply from 202.125.168.160: bytes=32 time=256ms TTL=49
Reply from 202.125.168.160: bytes=32 time=247ms TTL=49

Ping statistics for 202.125.168.160:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 247ms, Maximum = 268ms, Average = 255ms

C:\>tracert www.thewoodworks.com.au

Tracing route to server.bisshop.biz [202.125.168.160]
over a maximum of 30 hops:

1 1 ms 1 ms 1 ms 192.168.2.1
2 8 ms 7 ms 7 ms 10.16.128.1
3 9 ms 7 ms 7 ms ip68-1-11-1.at.at.cox.net [68.1.11.1]
4 7 ms 9 ms 10 ms 68.1.10.222
5 28 ms 29 ms 30 ms 68.1.1.121
6 31 ms 29 ms 29 ms ae-1-51.edge4.Atlanta2.Level3.net [4.68.103.14]

7 75 ms 42 ms 43 ms 4.68.62.22
8 45 ms 42 ms 42 ms 0.ge-2-2-0.XT2.ATL4.ALTER.NET [152.63.82.106]
9 77 ms 77 ms 82 ms 0.so-6-0-0.IL2.LAX9.ALTER.NET [152.63.48.61]
10 83 ms 77 ms 79 ms 0.so-2-0-0.IR2.LAX12.ALTER.NET [152.63.48.70]
11 248 ms 247 ms 245 ms 0.so-1-0-0.XT4.SYD4.ALTER.NET [210.80.48.98]
12 246 ms 253 ms 243 ms 0.so-7-0-0.GW4.SYD4.ALTER.NET [210.80.33.254]
13 244 ms 246 ms 244 ms nextgen-syd4-gw.customer.alter.net [210.80.189.4
2]
14 244 ms 243 ms 243 ms s-br1-sydn-1.pr2.sydn.nxg.net.au [121.200.224.86
]
15 307 ms 269 ms 269 ms c-20388-VAIES-200-014.cust.nxg.net.au [121.200.2
27.22]
16 246 ms 246 ms 245 ms vl101.EFAST.syd1.bluecentral.net.au [116.213.10.
4]
17 245 ms 245 ms 247 ms secure.webjini.biz [202.125.168.160]

Trace complete.

C:\>

235

so when it jumps from Los Angeles to Sydney it slows way down

Surprised people aren't talking about the developing major ice storms poised to hit Oklahoma and Arkansas. Looks like it will be a VERY destructive one with heavy ice accumulations.

Quoting tornadodude:
235

so when it jumps from Los Angeles to Sydney it slows way down

8000 km of fibre optics...and numerous connections will do that :)

Thank you, Orca.

Olga is splitting into five main areas of convection, it seems:

Quoting natrwalkn:
Surprised people aren't talking about the developing major ice storms poised to hit Oklahoma and Arkansas. Looks like it will be a VERY destructive one with heavy ice accumulations.

A couple of the WU members have addressed it on their individual blogs. Just go to "member blogs" at the top, if you'd like to look.

Quoting Orcasystems:


8000 km of fibre optics...and numerous connections will do that :)

that is true.

oh hey Aussie,

I might be going to Sydney to study abroad this summer, depending on how much financial aid I can get. I think it is from May 8th through July something

Hey all.

My round trip is 191ms. I think this is because my ISP runs up through Canada before hitting the rest of the world...

Watching the potential Southern Hemisphere ramp-up with interest....

Quoting AwakeInMaryland:

A couple of the WU members have addressed it on their individual blogs. Just go to "member blogs" at the top, if you'd like to look.

OK, Thanks

Quoting atmoaggie:

Ahhh, but we have fiber optic NICs and switching we could use...

Even more fun, our HPC system, currently building, has QDR Infiniband...40 Gbit/s and ~140 nanosec latency...

Fun world I live in over here.

Wow, how cool is it to be you? I loved working for the larger corporations with fairly unlimited resources in the IT department...

This is what did a large percentage of the damage in hurricane Charley:


tornado-scale mesovortex

Quoting Patrap:



Tsunamigenesis Earthquake Prediction and its Mechanism Through Seismic Signals
Chew, S.-; Wang, Y.-; Kuenza, K.-
American Geophysical Union, Fall Meeting 2006, abstract #S21A-0134


One of the key causes of tsunami is underwater earthquake of sufficiently large magnitude. However, not all underwater earthquakes with large magnitudes produce tsunamis. December 2004 Sumatra earthquake produced one of the deadliest tsunamis while March 2005 Sumatra earthquake, which has comparable magnitude and similar epicenter, did not result in the formation of any major tsunami. The generation of tsunamis with significant magnitudes is a complex phenomenon as its mechanism is strongly linked to fault structure and rupture mechanism. The frequency content of the seismic signal may provide a clue to the tsunamigenic nature of the earthquakes. Seismic wave (4000-6000 m/s) travels 20 to 30 times faster than tsunami wave (200 m/s). Thus, a tsunami prediction based on seismic signals instead of tsunami waves could deliver warning without much time delay. This study investigates the method of predicting tsunami by analyzing the frequency content of the seismic waves and relating it to the possible mechanism of tsunami generation. This paper presents the result of a research study which uses the method of Fast Fourier Transform (FFT) to extract the frequency components from the seismograms of a number of tsunamigenic and non-tsunamigenic earthquakes. The results indicate that tsunamigenic earthquakes have higher amplitude in the low frequency range (f < 0.15 Hz) and lower amplitude in the high frequency range (f = 0.15-0.3 Hz) compared to the non-tsunamigenic earthquakes. The observation supports the proposed mechanism of slow fault rupture in view of the long period nature of the tsunamigenic earthquakes. The frequency content of the seismic signal was also explored with Wavelet Analysis. These techniques, which utilizes frequency component of the seismic signals, have a great potential to be an effective component of the Tsunami Warning System, which at present mainly relies on the magnitude and location of earthquake as the determining factor in predicting the generation of tsunami.

all good but what if when a large land area slides into the sea they create the mother tsunami some as high as an 80 story building

Quoting KEEPEROFTHEGATE:
all good but what if when a large land area slides into the sea they create the mother tsunami some as high as an 80 story building

Thats surf-able if the break is right. Maybe a nice tube.