11 giovanni aerosol products aqa

Pawan Gupta1, Sundar A. Christopher1, Ana Prados2

1UAHuntsville 2UMBC, JCET

AMS Giovanni Short Course

January 11th, 2009

OMI and MODIS Aerosol OMI and MODIS Aerosol Data in GIOVANNIData in GIOVANNI

Giovanni Air Quality Tools and DatasetsGiovanni Air Quality Tools and Datasets

Available Science Data Sets Available Science Data Sets PM2.5 station data - Acquired at DataFed from EPA

AIRNow and then via WCS into Giovanni MODIS TERRA and AQUA total and fine mode Aerosol

Optical Depth MISR Aerosol Optical Depth CALIOP Aerosol Feature Mask curtain plots OMI UV Aerosol Index GOCART Model data – AOD speciation (2x2.5 degree)

Useful Tools for Air Quality ApplicationsUseful Tools for Air Quality Applications AOD/ PM2.5 scatter plots, correlation maps, time

series and difference plots AOD and PM2.5 loops for examining long range

transport of aerosols

Examples from GIOVANNIExamples from GIOVANNI

Visualizing California’s Wildfires from Visualizing California’s Wildfires from Space Space

Tropospheric Tropospheric NONO22

UV Aerosol UV Aerosol IndexIndex

Aerosol Aerosol Small Mode Small Mode

FractionFraction

Cloud Cloud Optical Optical

ThicknessThickness

Total Column Total Column COCO

Aerosol Mass Aerosol Mass over Landover Land

Southern California WildfiresSouthern California Wildfires

Aerosol Optical Depths at 0.55 µm (550 nm- red) from the MODIS instrument on the Terra satellite

25 October 200725 October 2007


MODIS on Terra~10:30 amMODIS on Terra~10:30 am MODIS on Aqua ~1:30 pmMODIS on Aqua ~1:30 pm


Aerosol Optical Depths at 0.55 µm (550 nm- red)



MODIS on TerraMODIS on Terra

~10:30 am~10:30 am

MODIS on Aqua, ~1:30 pmMODIS on Aqua, ~1:30 pm

OMI UV Aerosol OMI UV Aerosol Index on AuraIndex on Aura

~1:38 pm~1:38 pm

7


23-27 October 200723-27 October 2007

OMI Tropospheric NOOMI Tropospheric NO22

OMI UV Aerosol IndexOMI UV Aerosol Index

Multi-day means “smear out” some spatial features, but allow for more complete coverage for data-sparse mapping

Multi-day means “smear out” some spatial features, but allow for more complete coverage for data-sparse mapping


MODIS Cloud Optical MODIS Cloud Optical ThicknessThickness

OMI Tropospheric NOOMI Tropospheric NO22 OMI UV Aerosol IndexOMI UV Aerosol Index AIRS Carbon Monoxide AIRS Carbon Monoxide (CO)(CO)

MODIS Aerosol Mass MODIS Aerosol Mass over Landover Land

MODIS Small Aerosol MODIS Small Aerosol FractionFraction

Description Description

Spatial SelectionSpatial Selection

Parameter Parameter SelectionSelection

Temporal Temporal SelectionSelectionVisualization Visualization SelectionSelection

Some instances have Some instances have vertical or wavelength vertical or wavelength selectionselection

Instance Landing Page for Gridded dataInstance Landing Page for Gridded data

Outputs: Refine/ModifyOutputs: Refine/Modify

Refine constraints and edit plot preferences

Download data files and images hereDownload data files and images here

GIOVANNI data download page GIOVANNI data download page HDF, NetCDF, ASCII and HDF, NetCDF, ASCII and KMZsKMZs

MODIS Aerosol Optical DepthMODIS Aerosol Optical Depth

Almost two daily observations - Terra and Aqua

Sensitive to Boundary Layer Industrial, smoke & dust aerosols

Well validated over land

Fine mode fraction

Air Air PollutionPollution over China: over China: MODIS AOD via GiovanniMODIS AOD via Giovanni

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July 4July 4thth – August 4 – August 4thth, 2008, 2008 August 5August 5thth – August 25 – August 25thth, , 20082008

Beijing Summer 2007Beijing Summer 2007 Beijing Summer 2008Beijing Summer 2008

OMI UV Aerosol IndexOMI UV Aerosol Index

Mostly sensitive to absorbing aerosols above the planetary boundary layer (i.e transported smoke, and dust plumes)

GIOVANNI: PMGIOVANNI: PM2.52.5 Gridded Data Gridded Data

PM2.5 data from EPA AirNow (acquired from DataFed via WCS) provided in GIOVANNI framework as 1 degree gridded product,

which makes easy to compare with other satellite & ground observation

Gridded GIOVANNI PM2.5 (µgm-3)

PM2.5 Air Quality Index

July 31July 31stst, , 20072007

In Canada and the north-central US, MODIS and OMI show thick aerosols plumes. CALIOP overpass has a plume above the boundary layer

CALIPSO Curtain Plots (A-Train)CALIPSO Curtain Plots (A-Train)July 31, 2007: Smoke and Haze over the U.SJuly 31, 2007: Smoke and Haze over the U.S

OMI contours over MODIS AOD. White lines indicate CALIPSO overpass

Calipso provides vertical aerosol and cloud

information

AIRNow PMAIRNow PM2.52.5 map in map in backgroundbackground

YellowYellow:: Calipso aerosol Calipso aerosol flag flag

Blue:Blue: cloud flag cloud flag

Calipso Curtain Plots: July 31, 2007Calipso Curtain Plots: July 31, 2007Industrial Haze in Southeastern USIndustrial Haze in Southeastern US

Monitor-Satellite ComparisonsMonitor-Satellite ComparisonsJune 15- July 15June 15- July 15thth, 2006, 2006

Satellite data is a total column --- not necessarily correlated with PM2.5

concentrations

MODIS/PM2.5 correlation MODIS/PM2.5 time series

Giovanni currently provides several NASA earth science products for visualization and exploration of U.S air quality, including aerosols from MODIS, OMI, and CALIPSO on the A-Train constellation, and gridded EPA AIRNow

PM2.5 surface concentrations.

Customized data files, plots, and maps by date/range & geographical region.

Easy download of KMZ data files for 3D Visualization of US and Global Air Quality.

Giovanni currently provides several NASA earth science products for visualization and exploration of U.S air quality, including aerosols from MODIS, OMI, and CALIPSO on the A-Train constellation, and gridded EPA AIRNow

PM2.5 surface concentrations.

Customized data files, plots, and maps by date/range & geographical region.

Easy download of KMZ data files for 3D Visualization of US and Global Air Quality.

SummarySummary

11 giovanni aerosol products aqa

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