1. 
   IAHS
   acronym: International Association of Hydrological Sciences (IUGG)
   Found op http://cdiac.ornl.gov/pns/acronyms.html#I
   
   
2. 
   IAHS
   Type: Abbreviation Definitions: 1. Abbreviation for infection-associated hemophagocytic syndrome.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=43232
   
   
3. 
   iahs
   1) International association of hydrological sciences
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/iahs/1
   
   

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