Scuba Diving
| Abbreviation | Meaning | Tamil Meaning | Category |
|---|---|---|---|
| IES | Institute For Environmental Studies (UW) | - | Scuba Diving |
| IMAPP | International MODIS/AIRS Processing Package | - | Scuba Diving |
| IMG | Interferometric Monitor For Greenhouse Gases | - | Scuba Diving |
| IRIS | Infrared Radiation Interferometer Spectrometer (1960s) | - | Scuba Diving |
| ITOS | Improved Television And Infrared Observation Satellite (1970s) | - | Scuba Diving |
| ITS | Interferometer Thermal Sounder (HIS) | - | Scuba Diving |