Albayrak, Arif

daSilva, Daniel

Hegde, Mahabaleshwara

Ichoku, Charles

Leptoukh, Gregory

Lynnes, Chris

Petrenko, Maksym

Petrov, Leonid

Wei, Jennifer C.

NASA Technical Reports Server

Jennifer C.Wei1, Gregory Leptoukh2, Chris Lynnes2, Arif Albayrak1, Maksym Petrenko3, Mahabaleshwara Hegde1, Leonid Petrov1, Daniel da Silva2, and Charles Ichoku2 (1Adnet, 2NASA GSFC, 3UMCP) AGU FM11 ID: IN51C-1604 
Jennifer.C.Wei@nasa.gov 
This project was supported in by ACCESS (Accelerating Collaborative Connections for Earth System Science) 
• 	  Provide	  an	  easy-­‐to-­‐use	  collabora3ve	  environment	  for	  exploring	  aerosol	  phenomena	  using	  mul3-­‐sensor	  
data	  
• 	  Provide	  consistent	  services	  with	  mul3-­‐sensor	  aerosol	  data	  
• 	  Provide	  a	  transparent	  environment	  to	  coloca3on	  and	  comparison	  methods	  with	  detail	  documenta3on	  
• 	  Provide	  easy	  sharing	  of	  results	  
• 	  Different	  papers	  suggested	  different	  views	  on	  the	  quality	  of	  MODIS	  and	  MISR	  aerosol	  products.	  
• 	  Peer-­‐reviewed	  papers	  are	  usually	  behind	  the	  latest	  version	  of	  the	  data.	  
• 	  Dif@icult	  to	  verify/reproduce	  results	  from	  various	  published	  paper	  
• 	  Dif@icult	  to	  combine	  consistently	  adjusted	  measurements	  
• 	  In	  need	  of	  an	  online	  shareable	  environment	  where	  data	  processing	  and	  analysis	  can	  be	  done	  in	  a	  transparent	  way	  by	  any	  user	  of	  this	  environment	  and	  can	  be	  shared	  amongst	  all	  the	  members	  of	  the	  aerosol	  community.	  
 Add/Integrate	  bias	  adjustment	  for	  MISR	  colocated	  with	  
AERONET	  data	  
 Add/Integrate	  bias	  adjustment	  for	  “Satellite	  Only”	  service	  
 RouCnely	  process	  and	  ingest	  of	  colocated	  satellite	  and	  AERONET	  
data	  	  
 	  Fold	  AeroStat	  Giovanni	  into	  main	  stream	  Giovanni	  
 	  Add	  new	  Giovanni	  features	  and	  services	  to	  AeroStat	  where	  
applicable	  	  
Satellite	  Data	  
Ground-­‐
Based	  
Data 
Bias	  	  
Adjustment	  
Data	  Merge	  
Process 
Data	  Quality	  
Data	  
Lineage	  
Filters 
Giovanni AeroStat 
Giovanni  
Social Network 
Real-Time 
Collaboration 
Statistical Analysis 
http://giovanni.gsfc.nasa.gov/aerostat/	  
 Original	  Level	  2	  Product:	  	  	  	  	  	  AERONET,	  MODIS	  Terra,	  MODIS	  Aqua,	  MISR	  	  
 Derived	  Products	  
 Satellite	  Colocated	  with	  AERONET	  stations:	  MAPSS	  Database	  
 Cross	  Satellite	  Colocations:	  Near	  Neighbor	  Search	  
AeroStat	  Data	  Are	  Derived	  from	  Level	  2	  Measurements 
	  Threshold	  Default:	  Science	  Team	  Recommendation	  
Data Quality Filters 
User Selects a 
bounding box 
Flowchart	  of	  Bias	  Adjustment	  using	  Neural	  Network	  (Details	  in	  Poster	  A53C-­‐0371)	  	  
Aerostat	  Giovanni	  Online	  Services	  	  
Time	  Series	  
ScaFer	  Plot	  
How	  does	  Giovanni-­‐Social	  work?	  (Details	  in	  Oral	  IN33E-­‐05	  at	  2:40	  –	  2:55	  pm	  Wednesday)	  	  
Data	  Merge:	  Satellite	  Data	  Only	  (Max.	  10	  Days	  Period)	  
	  Allow	  up	  to	  8	  variables	  (including	  QA	  options)	  
	  Max.	  bounding	  box	  is	  50	  degrees	  
Step1:	  Create	  an	  account	  on	  hFp://gsocial.ecs.nasa.gov	  
Step2:	  Share/Save	  your	  Giovanni	  results	  from	  hFp://
giovanni.gsfc.nasa.gov/aerostat/	  
Example	  of	  Giovanni-­‐Social	  work	  via	  sharing:	  
Add	  
Annota3on	  
Post	  
concerns/
ques3ons	  
Responding	  comments	  
No	  QA	   QA	   Bias	  Adjustment	  
Lat-­‐Lon	  Map	  
Extremely	  High	  AOD	  
Dust	  Storm	  Transport	  (Mul3-­‐sensors	  products	  merged)	  	  
No	  QA	   QA	   Bias	  Adjustment	  
Deep	  Blue	   Dark	  Target	  Land	   Merged	  (Deep	  Blue	  +	  Dark	  Target)	  
https://ntrs.nasa.gov/search.jsp?R=20120003858 2019-08-30T19:34:13+00:00Z


AeroStat: NASA Giovanni Tool for Statistical Intercomparison of Aerosols

AeroStat: NASA Giovanni Tool for Statistical Intercomparison of Aerosols

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