Influence of river plume on variability of chlorophyll a concentration using satellite images

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6 Citations (Scopus)

Abstract

Freshwater discharge from rivers into the ocean is an important element of the dynamics in coastal areas. River discharge from land that includes chlorophyll a, nutrients, sediments and pollutants have been identified as one of the major causes of deterioration of the coastal water. The objective of this study was to examine the relationship between river discharge and variability of chlorophyll a concentration in plume area using satellite imagery. Satellite ocean color and Sea Surface Temperature (SST) imagery were used to present the synoptic quantification of chlorophyll a variability on seasonal and interannual timescales for the plume area of Tokachi River, Japan. Five years (1998 to 2002) of Sea WiFS local area coverage, AVHRR imagery and surface wind were analyzed using default NASA coefficients and community -standard algorithms as implemented by Sea DAS. The chlorophyll a climatology seasonal pattern showed seasonal cycles, first peak in spring and second peak in late summer to early autumn. Elevated chlorophyll a concentration demonstrates seasonal cycles and interannual variability are present around plume area associated with variation of river discharge. Elevated chlorophyll a concentration in off shore area was seen to be influenced by low sea surface temperature and wind stress.

Original languageEnglish
Pages (from-to)484-493
Number of pages10
JournalJournal of Applied Sciences
Volume11
Issue number3
DOIs
Publication statusPublished - 2011

Fingerprint

river plume
chlorophyll a
river discharge
plume
surface wind
imagery
sea surface temperature
ocean color
wind stress
AVHRR
river
satellite imagery
climatology
satellite image
coastal water
autumn
timescale
pollutant
nutrient
ocean

Keywords

  • Interannual variability
  • Off shore area
  • Plume area
  • Sea WiFS
  • Seasonal variation

ASJC Scopus subject areas

  • General

Cite this

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title = "Influence of river plume on variability of chlorophyll a concentration using satellite images",
abstract = "Freshwater discharge from rivers into the ocean is an important element of the dynamics in coastal areas. River discharge from land that includes chlorophyll a, nutrients, sediments and pollutants have been identified as one of the major causes of deterioration of the coastal water. The objective of this study was to examine the relationship between river discharge and variability of chlorophyll a concentration in plume area using satellite imagery. Satellite ocean color and Sea Surface Temperature (SST) imagery were used to present the synoptic quantification of chlorophyll a variability on seasonal and interannual timescales for the plume area of Tokachi River, Japan. Five years (1998 to 2002) of Sea WiFS local area coverage, AVHRR imagery and surface wind were analyzed using default NASA coefficients and community -standard algorithms as implemented by Sea DAS. The chlorophyll a climatology seasonal pattern showed seasonal cycles, first peak in spring and second peak in late summer to early autumn. Elevated chlorophyll a concentration demonstrates seasonal cycles and interannual variability are present around plume area associated with variation of river discharge. Elevated chlorophyll a concentration in off shore area was seen to be influenced by low sea surface temperature and wind stress.",
keywords = "Interannual variability, Off shore area, Plume area, Sea WiFS, Seasonal variation",
author = "Tukimat Lihan and {Ahmad Mustapha}, Muzzneena and {Abd Rahim}, {Sahibin @ Sahibini} and S. Saitoh and K. Iida",
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AU - Lihan, Tukimat

AU - Ahmad Mustapha, Muzzneena

AU - Abd Rahim, Sahibin @ Sahibini

AU - Saitoh, S.

AU - Iida, K.

PY - 2011

Y1 - 2011

N2 - Freshwater discharge from rivers into the ocean is an important element of the dynamics in coastal areas. River discharge from land that includes chlorophyll a, nutrients, sediments and pollutants have been identified as one of the major causes of deterioration of the coastal water. The objective of this study was to examine the relationship between river discharge and variability of chlorophyll a concentration in plume area using satellite imagery. Satellite ocean color and Sea Surface Temperature (SST) imagery were used to present the synoptic quantification of chlorophyll a variability on seasonal and interannual timescales for the plume area of Tokachi River, Japan. Five years (1998 to 2002) of Sea WiFS local area coverage, AVHRR imagery and surface wind were analyzed using default NASA coefficients and community -standard algorithms as implemented by Sea DAS. The chlorophyll a climatology seasonal pattern showed seasonal cycles, first peak in spring and second peak in late summer to early autumn. Elevated chlorophyll a concentration demonstrates seasonal cycles and interannual variability are present around plume area associated with variation of river discharge. Elevated chlorophyll a concentration in off shore area was seen to be influenced by low sea surface temperature and wind stress.

AB - Freshwater discharge from rivers into the ocean is an important element of the dynamics in coastal areas. River discharge from land that includes chlorophyll a, nutrients, sediments and pollutants have been identified as one of the major causes of deterioration of the coastal water. The objective of this study was to examine the relationship between river discharge and variability of chlorophyll a concentration in plume area using satellite imagery. Satellite ocean color and Sea Surface Temperature (SST) imagery were used to present the synoptic quantification of chlorophyll a variability on seasonal and interannual timescales for the plume area of Tokachi River, Japan. Five years (1998 to 2002) of Sea WiFS local area coverage, AVHRR imagery and surface wind were analyzed using default NASA coefficients and community -standard algorithms as implemented by Sea DAS. The chlorophyll a climatology seasonal pattern showed seasonal cycles, first peak in spring and second peak in late summer to early autumn. Elevated chlorophyll a concentration demonstrates seasonal cycles and interannual variability are present around plume area associated with variation of river discharge. Elevated chlorophyll a concentration in off shore area was seen to be influenced by low sea surface temperature and wind stress.

KW - Interannual variability

KW - Off shore area

KW - Plume area

KW - Sea WiFS

KW - Seasonal variation

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