Glossary of Terms
Reference the Earth Observation Data Basics Glossary to better understand terms related to the data provided by our program.
| Description | Source | |
|---|---|---|
| Nadir | Direction toward the center of the Earth, i.e., directly down. |
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| NASA-compliant General Application Platform (NGAP) | NGAP provides a NASA-compliant, secure, cloud-based Platform-as-a-Service (PaaS) and Infrastructure-as-a-Service (IaaS) for hosting Earth Observing System Data and Information System (EOSDIS) applications. |
Definition from the Definition from the EOSDIS Engineering and Design (EED) contract team contract team |
| Near Real-Time (NRT) Data | NRT Data are those that are available for use with a specified (small and application dependent) latency, which is typically 3 hours for meteorological applications. See LANCE. |
Definition from EO Data Stewardship Glossary |
| Net Radiation | Difference in intensity between all incoming energy and all outgoing energy carried by both shortwave and longwave radiation. |
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| NetCDF-4/HDF5 | NetCDF format that uses the HDF5 data storage model. |