WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
Air purifier?
- Thread starter Panerex
- Start date
- Status
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
http://news.asiaone.com/news/singapore/hot-spore-not-likely-get-hazy-now
Hot in S'pore, but not likely to get hazy for now
Thursday, Jul 2, 2015
Samantha Boh
Singapore continues to swelter, with the hot, dry weather showing no signs of letting up.
The total monthly rainfall for this month is predicted to be 15 per cent to 45 per cent below average. Temperatures, on the other hand, are forecasted to be above average. Yesterday, a high of 34 deg C was recorded at Admiralty at 3.36pm.
But the silver lining, experts say, is that with relatively few fires spotted in Indonesia, the haze is unlikely to make a comeback for now.
According to National Oceanic and Atmospheric Administration satellite images, there were seven hot spots in Sumatra as of yesterday evening.Isolated hot spots were detected in Borneo and Vietnam.
Dr Erik Velasco, a research scientist at the Singapore-MIT Alliance for Research and Technology's Centre for Environmental Sensing and Modelling, said the low numbers mean that the risk of transboundary haze here is low.
The 24-hour PSI stood between 56 and 61 as of 8pm yesterday, which puts it in the low-moderate range. It is considered unhealthy when the 24-hour PSI crosses 100.
"And while there was haze in Riau, the wind did not bring it here," he added. A light haze is currently blanketing Dumai and several other cities in Riau. Yesterday the Jakarta Post reported that poor visibility had disrupted flights at Dumai City's Pinang Kampai Airport over the last three days.
The National Environment Agency said last Friday that there will be an increased risk of transboundary haze here in the coming months, as the weather is expected to be drier and warmer than usual. This is a result of the strengthening El Nino phenomenon.
Hot in S'pore, but not likely to get hazy for now
Thursday, Jul 2, 2015
Samantha Boh
Singapore continues to swelter, with the hot, dry weather showing no signs of letting up.
The total monthly rainfall for this month is predicted to be 15 per cent to 45 per cent below average. Temperatures, on the other hand, are forecasted to be above average. Yesterday, a high of 34 deg C was recorded at Admiralty at 3.36pm.
But the silver lining, experts say, is that with relatively few fires spotted in Indonesia, the haze is unlikely to make a comeback for now.
According to National Oceanic and Atmospheric Administration satellite images, there were seven hot spots in Sumatra as of yesterday evening.Isolated hot spots were detected in Borneo and Vietnam.
Dr Erik Velasco, a research scientist at the Singapore-MIT Alliance for Research and Technology's Centre for Environmental Sensing and Modelling, said the low numbers mean that the risk of transboundary haze here is low.
The 24-hour PSI stood between 56 and 61 as of 8pm yesterday, which puts it in the low-moderate range. It is considered unhealthy when the 24-hour PSI crosses 100.
"And while there was haze in Riau, the wind did not bring it here," he added. A light haze is currently blanketing Dumai and several other cities in Riau. Yesterday the Jakarta Post reported that poor visibility had disrupted flights at Dumai City's Pinang Kampai Airport over the last three days.
The National Environment Agency said last Friday that there will be an increased risk of transboundary haze here in the coming months, as the weather is expected to be drier and warmer than usual. This is a result of the strengthening El Nino phenomenon.
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
50 ug/m3 for West 1000h.
They jinxed it.
They jinxed it.
chuanz
Supremacy Member
- Joined
- Nov 18, 2007
- Messages
- 5,004
- Reaction score
- 11
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
1200h
North and South 50 and 49 ug/m3
PSI 93 / AQI 137 for these 2 regions for the past 1hr
North and South 50 and 49 ug/m3
PSI 93 / AQI 137 for these 2 regions for the past 1hr
Last edited:
BoraBora69
Junior Member
- Joined
- Jun 22, 2015
- Messages
- 81
- Reaction score
- 0
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
This third WWBs are so strong are coz of the dual opposing typhoons on both sides of the equator. Slightly stronger than the Mar 2015 (also dual opposing typhoons on both sides of the EQ) event that kickstarted the first WWB and El Nino got borned.
http://www.smh.com.au/environment/w...-nino-a-major-kick-along-20150703-gi34v3.html
It's a great time to be a weather watcher if extremes or unusual events get your pulse running.
Australia entered July with little if any natural snow on its alpine peaks although Thursday's cold front helped bring some relief to the struggling ski resorts. Further fronts may bring much-needed reinforcements of snow early next week.
What transfixed meteorologists in the Pacific, though, was the formation of Cyclone Raquel north of the Solomon Islands.
Advertisement
For the southern hemisphere, tropical cyclones have not been recorded in winter since the arrival of the satellite era brought reliable storm detection.
And to the north, tropical storm Chan-Hom will likely spin to typhoon strength and bear down on Guam over the weekend. A series of other tropical lows is also lining up across the western Pacific.
Populations in the storms' path will face immediate threats but the impacts of this week may be felt far wider if, as expected, Raquel and its siblings across the equator give momentum to the strengthening El Nino that has taken hold in the central and eastern Pacific.
"It's a beautiful situation – if not for the Solomon Islands – but just meteorologically, it's amazing," Axel Timmermann, a professor of oceanography and El Nino specialist at the University of Hawaii, said.
Raquel, Chan-Hom and the other storms are "going to intensify the current conditions, and generate more momentum for the El Nino maturation" for the late southern winter and into the spring, Timmermann said.
El Ninos – and their opposite, La Ninas – are the biggest drivers of the global climate. An El Nino is characterised by the central and eastern equatorial Pacific warming faster than areas in the west as the normally easterly blowing trade winds stall or are reversed.
The storms will foster that development by sending westward wind bursts along the equator.
Rainfall patterns and temperatures shift during these fluctuations, with El Ninos typically marked by heatwaves and reduced rainfall in western parts of the Pacific including Australia, while eastern Africa and nations fringing the eastern Pacific tend to get unusually heavy rains. La Ninas produce the opposite effects.
Some – but not all – of Australia's worst snow seasons have been in El Niño years, as have big bushfires such as the Ash Wednesday blazes during the intense 1982-83 event.
Michael McPhaden, a senior scientist with the US National Oceanic and Atmospheric Administration, says Cyclone Raquel and the other storms could spur a particularly big El Nino.
"All the elements are in place for a major El Nino this year and the latest westerly wind burst will hit the accelerator on further warming," McPhaden says.
"Based on what we've seen so far in 2015, this event could shape up to be as big as the 1997-98 and 1982-83 El Ninos, which were the strongest on record."
However, Harry Hendon, a senior principal research scientist at the Bureau of Meteorology, cautions that forecasting the magnitude of an El Nino is difficult at this time of year. The particular tropical pulse that helped set up Cyclone Raquel – known as a Madden-Julian Oscillation - could also be followed by a counter phase that would quell some of the westward-wind bursts.
"The current forecasts indicate the most likely outcome is the occurrence of a moderately strong El Nino that peaks in late spring, but the range of possible amplitude is relatively large," Hendon says.
Wenju Cai, a CSIRO research director, likens this week's storms to 1972 when Cyclone Ida emerged in late May and into June, the last time the Queensland region had a tropical storm so far out of season.
Dr Cai says the background global warming makes it more likely to have cyclones form "to kick start the season", since such events need a minimum sea-surface temperature of 26.5 degrees.
"Often in June or July, westerly winds are hard to generate because the trade winds are quite strong in those months," Dr Cai says.
Cai agrees that it is too early to tell how strong this year's El Nino will be but notes that the 1972 event was exceeded by intensity in the 20th century only by the 1982-83 and 1997-98 ones.
Whatever its eventual strength, though, this year's El Nino may have another impact – putting to rest any remaining doubts about a "hiatus" in global warming, Timmermann says.
El Ninos tend to lift global surface temperatures by 0.1-0.2 degrees, and the first five months of 2015 are running 0.09 degrees above the previous record set in 2010 when the most recent El Nino was maturing, NOAA said last month.
http://www.smh.com.au/environment/w...-nino-a-major-kick-along-20150703-gi34v3.html
It's a great time to be a weather watcher if extremes or unusual events get your pulse running.
Australia entered July with little if any natural snow on its alpine peaks although Thursday's cold front helped bring some relief to the struggling ski resorts. Further fronts may bring much-needed reinforcements of snow early next week.
What transfixed meteorologists in the Pacific, though, was the formation of Cyclone Raquel north of the Solomon Islands.
Advertisement
For the southern hemisphere, tropical cyclones have not been recorded in winter since the arrival of the satellite era brought reliable storm detection.
And to the north, tropical storm Chan-Hom will likely spin to typhoon strength and bear down on Guam over the weekend. A series of other tropical lows is also lining up across the western Pacific.
Populations in the storms' path will face immediate threats but the impacts of this week may be felt far wider if, as expected, Raquel and its siblings across the equator give momentum to the strengthening El Nino that has taken hold in the central and eastern Pacific.
"It's a beautiful situation – if not for the Solomon Islands – but just meteorologically, it's amazing," Axel Timmermann, a professor of oceanography and El Nino specialist at the University of Hawaii, said.
Raquel, Chan-Hom and the other storms are "going to intensify the current conditions, and generate more momentum for the El Nino maturation" for the late southern winter and into the spring, Timmermann said.
El Ninos – and their opposite, La Ninas – are the biggest drivers of the global climate. An El Nino is characterised by the central and eastern equatorial Pacific warming faster than areas in the west as the normally easterly blowing trade winds stall or are reversed.
The storms will foster that development by sending westward wind bursts along the equator.
Rainfall patterns and temperatures shift during these fluctuations, with El Ninos typically marked by heatwaves and reduced rainfall in western parts of the Pacific including Australia, while eastern Africa and nations fringing the eastern Pacific tend to get unusually heavy rains. La Ninas produce the opposite effects.
Some – but not all – of Australia's worst snow seasons have been in El Niño years, as have big bushfires such as the Ash Wednesday blazes during the intense 1982-83 event.
Michael McPhaden, a senior scientist with the US National Oceanic and Atmospheric Administration, says Cyclone Raquel and the other storms could spur a particularly big El Nino.
"All the elements are in place for a major El Nino this year and the latest westerly wind burst will hit the accelerator on further warming," McPhaden says.
"Based on what we've seen so far in 2015, this event could shape up to be as big as the 1997-98 and 1982-83 El Ninos, which were the strongest on record."
However, Harry Hendon, a senior principal research scientist at the Bureau of Meteorology, cautions that forecasting the magnitude of an El Nino is difficult at this time of year. The particular tropical pulse that helped set up Cyclone Raquel – known as a Madden-Julian Oscillation - could also be followed by a counter phase that would quell some of the westward-wind bursts.
"The current forecasts indicate the most likely outcome is the occurrence of a moderately strong El Nino that peaks in late spring, but the range of possible amplitude is relatively large," Hendon says.
Wenju Cai, a CSIRO research director, likens this week's storms to 1972 when Cyclone Ida emerged in late May and into June, the last time the Queensland region had a tropical storm so far out of season.
Dr Cai says the background global warming makes it more likely to have cyclones form "to kick start the season", since such events need a minimum sea-surface temperature of 26.5 degrees.
"Often in June or July, westerly winds are hard to generate because the trade winds are quite strong in those months," Dr Cai says.
Cai agrees that it is too early to tell how strong this year's El Nino will be but notes that the 1972 event was exceeded by intensity in the 20th century only by the 1982-83 and 1997-98 ones.
Whatever its eventual strength, though, this year's El Nino may have another impact – putting to rest any remaining doubts about a "hiatus" in global warming, Timmermann says.
El Ninos tend to lift global surface temperatures by 0.1-0.2 degrees, and the first five months of 2015 are running 0.09 degrees above the previous record set in 2010 when the most recent El Nino was maturing, NOAA said last month.
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
N Sumatra got some convection (showers) there, helped by Linfa. Riau, Jambi, S Sumatra remains bone dry.
4 systems out in the Pacific, 1 opposing system down South of the Equator (Rachel).
This will pump the El Nino big time.
4 systems out in the Pacific, 1 opposing system down South of the Equator (Rachel).
This will pump the El Nino big time.
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
west side 53 μg/m³ (PSI 98 / AQI 144) 0700h
No wonder people said got haze smell
Sumatran squall thunderstorm brought the haze from Sumatra (West to East going type of thunderstorm)
No wonder people said got haze smell
Sumatran squall thunderstorm brought the haze from Sumatra (West to East going type of thunderstorm)
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
Bought a LG LA-Q379SB, the korean sibling of local set PS-R459. 318m3/hr 40W. Used set, SGD 60. 
You can get the LG LA-Q379SB for SGD278 shipped via FedEx on qoo10.
The 220V 60Hz set, like the Samsung AX40, can work here no issue at all. But the HEPA is used, so need to change to my taobao HEPA (which i have spare coz i customised 4pcs for the PS-R459). Opened it up and cleaned everything with alcohol...good as new.
NB. Found one impt difference between the LA-Q379SB and PS-R459.
The button function for turning on/off the ionisier on the PS-R459 is changed to a dimmer function on the LA-Q379SB. Press once and the lights on the air purifier dims. Press another time and it switches off the light. Great! This is coz on most air purifiers except the Sharps, there is no way to turn off the lights during sleeping hours
You can get the LG LA-Q379SB for SGD278 shipped via FedEx on qoo10.
The 220V 60Hz set, like the Samsung AX40, can work here no issue at all. But the HEPA is used, so need to change to my taobao HEPA (which i have spare coz i customised 4pcs for the PS-R459). Opened it up and cleaned everything with alcohol...good as new.
NB. Found one impt difference between the LA-Q379SB and PS-R459.
The button function for turning on/off the ionisier on the PS-R459 is changed to a dimmer function on the LA-Q379SB. Press once and the lights on the air purifier dims. Press another time and it switches off the light. Great! This is coz on most air purifiers except the Sharps, there is no way to turn off the lights during sleeping hours
Last edited:
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
LG LA-Q379SB 220V 60Hz with Samsung AX40 220V 60Hz. Both Koreans.
45mm depth Taobao HEPA just nice, prefilter can fit.
Gonna cut n squeeze some of the taobao plastic PE bag packaging into the gaps to prevent bypass later.... I find that leaving a bit of a gap at the sides for this purpose is best, no need to spec the customised Taobao HEPA to be too tight a fit (v difficult to take out or put in coz it's not 100% zhun when customising).
45mm depth Taobao HEPA just nice, prefilter can fit.
Gonna cut n squeeze some of the taobao plastic PE bag packaging into the gaps to prevent bypass later.... I find that leaving a bit of a gap at the sides for this purpose is best, no need to spec the customised Taobao HEPA to be too tight a fit (v difficult to take out or put in coz it's not 100% zhun when customising).
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
A bit lah.
West side 24-hr PM2.5 figures went over the WHO recommended limit of 25 ug/m3 (24-hr figure) twice in July. Other areas like North and South also quite close to the limit.
Got a few hrs staying 30-40+ ug/m3, West spiked to 53 ug/m3 yesterday.
I'm living @ high floor and have a clear view of Jurong Island and Batam etc....so it's obvious to me. Chuanz have a good view of over the causeway/JB, so that's a decent landmark to benchmark also...etc etc.
Many other people would not have any visual indication at all, and need to rely on personal air quality meters (bought from Taobao for eg) or the NEA 1-hr pollutant concentration figures.
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
LOL....bakerqbal, North side is at 55 ug/m3 55 μg/m³ (PSI 100 / AQI 149)
West = 45 μg/m³ (PSI 88 / AQI 124)
Sunday 5 July 1400hr report (1300-1400hr 1-hr)
Chuanz or anybody @ West side, can come in?
West = 45 μg/m³ (PSI 88 / AQI 124)
Sunday 5 July 1400hr report (1300-1400hr 1-hr)
Chuanz or anybody @ West side, can come in?
chuanz
Supremacy Member
- Joined
- Nov 18, 2007
- Messages
- 5,004
- Reaction score
- 11
LOL....bakerqbal, North side is at 55 ug/m3 55 μg/m³ (PSI 100 / AQI 149)
West = 45 μg/m³ (PSI 88 / AQI 124)
Sunday 5 July 1400hr report (1300-1400hr 1-hr)
Chuanz or anybody @ West side, can come in?
I was at the south side since noon... Later report back. I actually caught a whiff of very light hazy smell when the wind blows. Thought my nose was playing tricks on me.
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
North went down for 1500hr liao. 45 μg/m³ (PSI 88 / AQI 124)
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
Haze spike detected @ South towards direction of Batam. The sea halfway between SG and Batam can see some haze cloud that delineates less hazy air and the denser haze cloud.
Lets see the conditions later. South or West shd kena first.
Lets see the conditions later. South or West shd kena first.
WussRedXLi
Greater Supremacy Member
- Joined
- Jun 15, 2001
- Messages
- 94,403
- Reaction score
- 11,151
http://news.asiaone.com/news/singapore/hot-spore-not-likely-get-hazy-now
Hot in S'pore, but not likely to get hazy for now
Thursday, Jul 2, 2015
Samantha Boh
Singapore continues to swelter, with the hot, dry weather showing no signs of letting up.
The total monthly rainfall for this month is predicted to be 15 per cent to 45 per cent below average. Temperatures, on the other hand, are forecasted to be above average. Yesterday, a high of 34 deg C was recorded at Admiralty at 3.36pm.
But the silver lining, experts say, is that with relatively few fires spotted in Indonesia, the haze is unlikely to make a comeback for now.
According to National Oceanic and Atmospheric Administration satellite images, there were seven hot spots in Sumatra as of yesterday evening.Isolated hot spots were detected in Borneo and Vietnam.
Dr Erik Velasco, a research scientist at the Singapore-MIT Alliance for Research and Technology's Centre for Environmental Sensing and Modelling, said the low numbers mean that the risk of transboundary haze here is low.
The 24-hour PSI stood between 56 and 61 as of 8pm yesterday, which puts it in the low-moderate range. It is considered unhealthy when the 24-hour PSI crosses 100.
"And while there was haze in Riau, the wind did not bring it here," he added. A light haze is currently blanketing Dumai and several other cities in Riau. Yesterday the Jakarta Post reported that poor visibility had disrupted flights at Dumai City's Pinang Kampai Airport over the last three days.
The National Environment Agency said last Friday that there will be an increased risk of transboundary haze here in the coming months, as the weather is expected to be drier and warmer than usual. This is a result of the strengthening El Nino phenomenon.
Hot in S'pore, but not likely to get hazy for now
Thursday, Jul 2, 2015
Samantha Boh
Singapore continues to swelter, with the hot, dry weather showing no signs of letting up.
The total monthly rainfall for this month is predicted to be 15 per cent to 45 per cent below average. Temperatures, on the other hand, are forecasted to be above average. Yesterday, a high of 34 deg C was recorded at Admiralty at 3.36pm.
But the silver lining, experts say, is that with relatively few fires spotted in Indonesia, the haze is unlikely to make a comeback for now.
According to National Oceanic and Atmospheric Administration satellite images, there were seven hot spots in Sumatra as of yesterday evening.Isolated hot spots were detected in Borneo and Vietnam.
Dr Erik Velasco, a research scientist at the Singapore-MIT Alliance for Research and Technology's Centre for Environmental Sensing and Modelling, said the low numbers mean that the risk of transboundary haze here is low.
The 24-hour PSI stood between 56 and 61 as of 8pm yesterday, which puts it in the low-moderate range. It is considered unhealthy when the 24-hour PSI crosses 100.
"And while there was haze in Riau, the wind did not bring it here," he added. A light haze is currently blanketing Dumai and several other cities in Riau. Yesterday the Jakarta Post reported that poor visibility had disrupted flights at Dumai City's Pinang Kampai Airport over the last three days.
The National Environment Agency said last Friday that there will be an increased risk of transboundary haze here in the coming months, as the weather is expected to be drier and warmer than usual. This is a result of the strengthening El Nino phenomenon.
- Status
Important Forum Advisory Note
This forum is moderated by volunteer moderators who will react only to members' feedback on posts. Moderators are not employees or representatives of HWZ Forums. Forum members and moderators are responsible for their own posts.
Please refer to our Community Guidelines and Standards and Terms and Conditions for more information.
