Ike na agafe bụ ọnụego nke nnyefe ike site n'elu. A na akọwa ọnụọgụ ahụ n'ụzọ abụọ dị iche iche, dabere na ihe gbara ya gburugburu:
- Ọnụ ọgụgụ ngụkọta nke nnyefe ike (ọ bụghị mpaghara ọ bụla); SI nkeji: W = J⋅s−1.[1]
- Ọnụego a kapịrị ọnụ nke nnyefe ike (ngụkọta nke mpaghara ọ bụla); SI nkeji: W⋅m−2 = J⋅m− 2⋅s−1:[2]
- Nke a bụ ọnụọgụ vector, a na-ekpebi ihe ndị mejupụtara ya n'ihe gbasara ntụziaka (nke kwụ ọtọ) na elu nke nha.
- A na-akpọ nke a mgbe ụfọdụ ike flux density, iji mee ka ọ dị iche na nkọwa mbụ.
- Radiative flux, okpomọkụ flux, na ụda ike flux bụ ihe atụ ụfọdụ nke nkọwa a.
- ↑ Solar Physics Glossary. Nasa. Retrieved on 2008-12-24.
- ↑ Energy flux. Retrieved on 2008-12-24.