@article{fdi:010061763,
  title = {{B}iophysical responses near equatorial islands in the {W}estern {P}acific {O}cean during {E}l {N}ino/{L}a {N}ina transitions},
  author = {{G}ierach, {M}. {M}. and {M}essie, {M}. and {L}ee, {T}. and {K}arnauskas, {K}. {B}. and {R}adenac, {M}arie-{H}{\'e}l{\`e}ne},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he biological response in the western equatorial {P}acific {O}cean during {E}l {N}ino/{L}a {N}ina transitions and the underlying physical mechanisms were investigated. {A} chlorophyll a bloom was observed near the {G}ilbert {I}slands during the 2010 {E}l {N}ino/{L}a {N}ina transition, whereas no bloom was observed during the 2007 {E}l {N}ino/{L}a {N}ina transition. {C}ompared to the previously observed bloom during the 1998 {E}l {N}ino/{L}a {N}ina transition, the 2010 bloom was weaker, lagged by 1-2 months, and was displaced eastward by similar to 200 km. {A}nalysis suggested that the occurrence, magnitude, timing, and spatial pattern of the blooms were controlled by two factors: easterly winds in the western equatorial {P}acific during the transition to {L}a {N}ina and the associated island mass effect that enhanced vertical processes (upwelling and vertical mixing), and the preconditioning of the thermocline depth and barrier layer thickness by the preceding {E}l {N}ino that regulated the efficiency of the vertical processes. {D}espite the similar strength of easterly winds in the western equatorial {P}acific during the 1998 and 2010 transitions to {L}a {N}ina, the 20092010 {E}l {N}ino prompted a deeper thermocline and thicker barrier layer than the 1997-1998 {E}l {N}ino that hampered the efficiency of the vertical processes in supplying nutrients from the thermocline to the euphotic zone, resulting in a weaker bloom.},
  keywords = {{PACIFIQUE} ; {MICRONESIE} ; {GILBERT} {ILES}},
  booktitle = {},
  journal = {{G}eophysical {R}esearch {L}etters},
  volume = {40},
  numero = {20},
  pages = {5473--5479},
  ISSN = {0094-8276},
  year = {2013},
  DOI = {10.1002/2013gl057828},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061763},
}