the seasonal aerosol aerosol pattern at the improve sites is examined using two methodologies:
DESCRIPTION
NARSTO PM Assessment Chapter 5: Spatial and Temporal Pattern TOC Introduction Data Global Pattern NAM Dust NAM Smoke NAM Haze NAM Total PM Local PM Speciated Seasonal over the Central EUS. The seasonal aerosol aerosol pattern at the IMPROVE sites is examined using two methodologies: - PowerPoint PPT PresentationTRANSCRIPT
NARSTO PM AssessmentChapter 5: Spatial and Temporal Pattern
TOC Introduction Data Global Pattern NAM Dust NAM Smoke NAM Haze NAM Total PM Local PM
Speciated Seasonal over the Central EUS
The seasonal aerosol aerosol pattern at the IMPROVE sites is examined using two methodologies:
– Seasonal Mass Balance Charts
– Seasonal Percentile Frequency Charts
Method 1: Cumulative Seasonal PM2.5 Composition
• PM2.5 chemical components were calculated based on the CIRA methodology
• In addition, the the organics were (tentatively) further separated as Primary Smoke Organics (red) and Remainder organics (purple)
PSO = 20*(K - 0.15*Si – 0.02* Na) Remainder Org = Organics - PSO
• Also, the ‘Unknown’ mass (white area) is the difference between the gravimetrically measured and the chemically reconstructed PM2.5.
• The daily chemical composition was aggregated over the available IMPROVE data range (1988-99) to retain the seasonal structure.
• I order to reduce the noise the daily data were smoothed by a 15-day moving average filter.
Shenandoah
Method 2: Seasonal Percentiles, 1992-99
At Lye Brook, VT, the clean days (20 percentile) corresponds to ~4 ug/m3 throughout the year
The dirty days are (80-90%-ile) have 2-5 times higher concentration than the clean days.
Great Smoky Mtn.Lye Brook
Clean days (20%) ‘Clean’ days (20%)
Dirty days, 80-90%
Dirty days, 80-90%
At the Smoky Mtn, the clean days in the winter are also ~4 ug/m3. However in the summer, even the ‘clean’ days have 14 ug/m3 PM2.5.
The dirty days are have 2-3 times higher than the clean days through out the year.
• The charts depict the magnitude of seasonal and synoptic variation• The synoptic-scale variation (day-to-day) can be measured by the 20-80 percentile spread
Regional Grouping of Sites
• For this presentation the IMPROVE sites were grouped as follows:
– New England ()
– Mid-Atlantic ()
– Central EUS ()
– Peripheral ()
• For each region, the seasonality is displayed for:
– Chemical Mass Balance
– Carbonaceous Mass Balance
– Fine Particle Mass Percentiles
– Coarse Mass Percentiles
– Sulfate Percentiles
– Fine Soil Percentiles
– Tot. Carbon. + 'Unknown' Percentiles
– Smoke Organics Percentiles
South WUS: Chemical Mass Balance
Tonto Bandelier Petrified F.
Saguaro NM Chiricahua
Southwest : Chemical Mass Balance
Bryce Canyon Mesa Verde Hopi Point
Weminuche W G Sand Dunes
Canyonlands
White River
Idaho: Chemical Mass Balance
Sawtooth Crater Moon
Salmon Scoville
Three Sisters
Brooklyn L
Bridger, WY
Nevada-Wyoming: Chemical Mass Balance
Jarbidge
Yellowstone
Lone PeakGreat Basin
Mt. Zirkel Rocky Mt
Washington-Oregon: Chemical Mass Balance
Columbia RG Crater Lake
Columbia G. Glacier NP
Sula MT
San Joaquin Valley: Chemical Mass Balance
Lassen Volcan Death Valley Pinnacles
Bliss StatePark Yosemite
Mntn and Valleys: Chemical Mass Balance
San Gorgonio Death Valley Sequoia
South Tahoe Snoqualamie
WUS Coastal Sites: Chemical Mass Balance
Mauna Loa Puget Sound Point Reyes
Haleakala Redwood
Denali
Big Bend and Guadal: Chemical Mass Balance
Guadalupe Big Bend
South WUS: Carbonaceous Mass Balance
Tonto Bandelier Petrified F.
Saguaro NM Chiricahua
Southwest : Carbonaceous Mass Balance
Bryce Canyon Mesa Verde Hopi Point
Weminuche W G Sand Dunes
Canyonlands
White River
Idaho: Carbonaceous Mass Balance
Sawtooth Crater Moon
Salmon Scoville
Three Sisters
Bridger, WY
Nevada-Wyoming: Carbonaceous Mass Balance
Jarbidge
Yellowstone
Lone PeakGreat Basin
Mt. Zirkel Rocky Mt
Washington-Oregon: Carbonaceous Mass Balance
Columbia RG Crater Lake
Columbia G. Glacier NP
Sula MT
San Joaquin Valley: Carbonaceous Mass Balance
Lassen Volcan Death Valley Pinnacles
Bliss StatePark Yosemite
Mntn and Valleys: Carbonaceous Mass Balance
San Gorgonio Death Valley Sequoia
South Tahoe Snoqualamie
WUS Coastal Sites: Carbonaceous Mass Balance
Mauna Loa Puget Sound Point Reyes
Haleakala Redwood
Denali
Big Bend and Guadal: Carbonaceous Mass Balance
Guadalupe Big Bend
South WUS: Fine Particle Mass Percentiles
Tonto Bandelier Petrified F.
Saguaro NM Chiricahua
Southwest : Fine Particle Mass Percentiles
Bryce Canyon Mesa Verde Hopi Point
Weminuche W G Sand Dunes
Canyonlands
White River
Idaho: Fine Particle Mass Percentiles
Sawtooth Crater Moon
Salmon Scoville
Three Sisters
Bridger, WY
Nevada-Wyoming: Fine Particle Mass Percentiles
Jarbidge
Yellowstone
Lone Peak
Brooklyn L
Great Basin
Mt. Zirkel Rocky Mt
Washington-Oregon: Fine Particle Mass Percentiles
Columbia RG Crater Lake
Columbia G. Glacier NP
Sula MT
San Joaquin Valley: Particle Mass Percentiles
Lassen Volcan Death Valley Pinnacles
Bliss StatePark Yosemite
Mntn and Valleys: Fine Particle Mass Percentiles
San Gorgonio Death Valley Sequoia
South Tahoe Snoqualamie
WUS Coastal Sites: Fine Particle Mass Percentiles
Mauna Loa Puget Sound Point Reyes
Haleakala Redwood
Denali
Big Bend and Guadal: Fine Particle Mass Percentiles
Guadalupe Big Bend
South WUS: Coarse Mass Percentiles
Tonto Bandelier Petrified F.
Saguaro NM Chiricahua
Southwest : Coarse Mass Percentiles
Bryce Canyon Mesa Verde Hopi Point
Weminuche W G Sand Dunes
Canyonlands
White River
Idaho: Coarse Mass Percentiles
Sawtooth Crater Moon
Salmon Scoville
Three Sisters
Nevada-Wyoming: Coarse Mass Percentiles
Jarbidge
Yellowstone
Lone Peak Bridger, WYGreat Basin
Mt. Zirkel Rocky Mt
Washington-Oregon: Coarse Mass Percentiles
Columbia RG Crater Lake
Columbia G. Glacier NP
Sula MT
San Joaquin Valley: Coarse Mass Percentiles
Lassen Volcan Death Valley Pinnacles
Bliss StatePark Yosemite
Mountain Passes and Valle: Coarse Mass Percentiles
San Gorgonio Death Valley Sequoia
South Tahoe Snoqualamie
Western US Coastal Sites: Coarse Mass Percentiles
Mauna Loa Puget Sound Point Reyes
Haleakala Redwood
Denali
Big Bend and Guadalupe: Coarse Mass Percentiles
Guadalupe Big Bend
South WUS: Sulfate Percentiles
Tonto Bandelier Petrified F.
Saguaro NM Chiricahua
Southwest : Sulfate Percentiles
Bryce Canyon Mesa Verde Hopi Point
Weminuche W G Sand Dunes
Canyonlands
White River
Idaho: Sulfate Percentiles
Sawtooth Crater Moon
Salmon Scoville
Three Sisters
Bridger, WY
Nevada-Wyoming: Sulfate Percentiles
Jarbidge
Yellowstone
Lone Peak
Brooklyn L
Great Basin
Mt. Zirkel Rocky Mt
Washington-Oregon: Sulfate Percentiles
Columbia RG Crater Lake
Columbia G. Glacier NP
Sula MT
San Joaquin Valley: Sulfate Percentiles
Lassen Volcan Death Valley Pinnacles
Bliss StatePark Yosemite
Mountain Passes and Valleys: Sulfate Percentiles
San Gorgonio Death Valley Sequoia
South Tahoe Snoqualamie
Western US Coastal Sites: Sulfate Percentiles
Mauna Loa Puget Sound Point Reyes
Haleakala Redwood
Denali
Big Bend and Guadalupe: Sulfate Percentiles
Guadalupe Big Bend
South WUS: Fine Soil Percentiles
• Fine dust
Tonto Bandelier Petrified F.
Saguaro NM Chiricahua
Southwest : Fine Soil Percentiles
• Fine dust
Bryce Canyon Mesa Verde Hopi Point
Weminuche W G Sand Dunes
Canyonlands
White River
Idaho: Fine Soil Percentiles
• Fine dust
Sawtooth Crater Moon
Salmon Scoville
Three Sisters
Nevada-Wyoming: Fine Soil Percentiles
• Fine dust
Jarbidge Sawtooth
Yellowstone
Lone Peak Bridger, WY
Brooklyn L
Great Basin
Mt. Zirkel Rocky Mt
Washington-Oregon: Fine Soil Percentiles
• Fine dust
Columbia RG Crater Lake
Columbia G. Glacier NP
Sula MT
San Joaquin Valley: Fine Soil Percentiles
• Fine dust
Lassen Volcan Death Valley Pinnacles
Bliss StatePark Yosemite
Mountain Passes and Valleys: Fine Soil Percentiles
• Fine dust
San Gorgonio Death Valley Sequoia
South Tahoe Snoqualamie
Western US Coastal Sites: Fine Soil Percentiles
• Fine dust
Mauna Loa Puget Sound Point Reyes
Haleakala Redwood
Denali
Big Bend and Guadalupe: Fine Soil Percentiles
• Fine dust
Guadalupe Big Bend
South WUS: Tot. Carbon + 'Unknown' Percentiles
Tonto Bandelier Petrified F.
Saguaro NM Chiricahua
Southwest : Tot. Carbon + 'Unknown' Percentiles
Bryce Canyon Mesa Verde Hopi Point
Weminuche W G Sand Dunes
Canyonlands
White River
Idaho: Tot. Carbon + 'Unknown' Percentiles
Sawtooth Crater Moon
Salmon Scoville
Three Sisters
Bridger, WY
Nevada-WY: Tot. Carbon + 'Unknown' Percentiles
Jarbidge
Yellowstone
Lone Peak
Rocky Mt
Great Basin
Mt. Zirkel
Washington-OR: Tot. Carbon + 'Unknown' Percentiles
Columbia RG Crater Lake
Columbia G. Glacier NP
Sula MT
San Joaquin V: Tot. Carbon + 'Unknown' Percentiles
Lassen Volcan Death Valley Pinnacles
Bliss StatePark Yosemite
Mntn and Val: Tot. Carbon + 'Unknown' Percentiles
San Gorgonio Death Valley Sequoia
South Tahoe Snoqualamie
WUS Coastal : Tot. Carbon + 'Unknown' Percentiles
Mauna Loa Puget Sound Point Reyes
Haleakala Redwood
Denali
BigB and Gu: Tot. Carbon + 'Unknown' Percentiles
Guadalupe Big Bend
South WUS: Smoke Organics Percentiles
Tonto Bandelier Petrified F.
Saguaro NM Chiricahua
Southwest : Smoke Organics Percentiles
Bryce Canyon Mesa Verde Hopi Point
Weminuche W G Sand Dunes
Canyonlands
White River
Idaho: Smoke Organics Percentiles
Sawtooth Crater Moon
Salmon Scoville
Three Sisters
Bridger, WY
Nevada-Wyoming: Smoke Organics Percentiles
Jarbidge
Yellowstone
Lone Peak
Brooklyn L
Great Basin
Mt. Zirkel Rocky Mt
Washington-Oregon: Smoke Organics Percentiles
Columbia RG Crater Lake
Columbia G. Glacier NP
Sula MT
San Joaquin Valley: Smoke Organics Percentiles
Lassen Volcan Death Valley Pinnacles
Bliss StatePark Yosemite
Mntn and Valleys: Smoke Organics Percentiles
San Gorgonio Death Valley Sequoia
South Tahoe Snoqualamie
WUS Coastal Sites: Smoke Organics Percentiles
Mauna Loa Puget Sound Point Reyes
Haleakala Redwood
Denali
Big Bend and Guadalu: Smoke Organics Percentiles
Guadalupe Big Bend