|
| << vorige | volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 104 van 268 gevonden artikelen
| Titel: |
Empirical chlorophyll algorithm and preliminary SeaWiFS validation for the California Current |
| Auteur: |
Kahru, M. Mitchell, B. G. |
| Verschenen in: |
International journal of remote sensing |
| Paginering: | Jaargang 20 (1999) nr. 17 pagina's 3423-3429 |
| Jaar: |
1999-11-15 |
| Inhoud: |
A new empirical chlorophyll algorithm is proposed for SeaWiFS (Seaviewing Wide Field-of-view Sensor) and other ocean colour sensors. The CAL-P6 algorithm uses a sixth-order polynomial of the ratio of normalized water leaving radiances (L WN) at 490nm and 555nm and is based on 348 measurements of L WN and chlorophyll- a in the California Current. Validation of the SeaWiFS-derived chlorophyll values with 27 concurrent in situ measurements showed high correlation (r2=0.93 in the log-log space) but significant overestimation by SeaWiFS at high chlorophyll- a concentration. The problem was traced to significant underestimation of the SeaWiFS-derived L W N (490) at high chlorophyll- a concentration (3-5mgm -3 ). Further refinement of the atmospheric correction is needed for SeaWiFS to attain its goal of 35% accuracy for chlorophyll retrieval in the coastal zone. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 104 van 268 gevonden artikelen
| << vorige | volgende >> |