The variability of La Guajira upwelling system, in the south-central Caribbean Sea, is strongly influenced by the intensity and location of the atmospheric Caribbean Low-Level Jet (CLLJ), a near-surface branch of the easterlies, as well as by the regional ocean circulation. During favorable conditions (i.e., strong easterlies blowing almost parallel to the coast), upwelling is enhanced and a large amount of primary productivity occurs in La Guajira area. In contrast, during relatively mild wind conditions, the CLLJ is misaligned to the coast and the Caribbean Counter Current (CCC, locally also known as the Darien Current), which forms as a branch from the Panama-Colombia Gyre, flows northeastward over the continental shelf advecting waters from the southwestern Caribbean basin toward La Guajira. The CCC has a clear signature at the surface layer that extends from the Darien Gulf toward La Guajira peninsula during mild wind periods, while disappears during the months of strong winds. The direction and the magnitude of the easterlies, and more specifically of the CLLJ, control the position and pathway of the CCC, which extends more than 900 km in the southern Caribbean Sea during May, June, August, September, and October. The high concentration of chlorophyll-a at the sea surface evidenced by satellite-based color images is semi-seasonally modulated by the CLLJ, which during its relaxation phase allows the irruption of the CCC toward the east up to La Guajira.

加勒比海中南部的La Guajira上升流系统的变化强烈受大气层加勒比低空急流（CLLJ），东风近地分支以及海平面的强度和位置的强烈影响。区域海洋环流。在有利的条件下（即强东风几乎平行于海岸吹动），上升流得到增强，拉瓜吉拉地区发生大量初级生产力。相反，在相对温和的风力条件下，CLLJ与海岸不对齐，加勒比逆流（CCC，在当地也称为达利安海流）形成，是巴拿马-哥伦比亚环流的分支，向东北流向整个大陆从西南加勒比海盆地流向拉瓜希拉的架子。CCC在表层具有明显特征，在轻度风期间从达里恩湾向拉瓜希拉半岛延伸，而在强风月份则消失。东风的方向和强度，特别是CLLJ的方向和强度，控制着CCC的位置和路径，CCC在5月，6月，8月，9月和10月在加勒比海南部延伸了900多公里。基于卫星的彩色图像所证明的海面高浓度的叶绿素a被CLLJ进行了半季节调节，这在其松弛阶段允许CCC向东喷发至La Guajira。东风的方向和强度，特别是CLLJ的方向和强度，控制着CCC的位置和路径，CCC在5月，6月，8月，9月和10月在加勒比海南部延伸了900多公里。基于卫星的彩色图像所证明的海面高浓度的叶绿素a被CLLJ进行了半季节调节，这在其松弛阶段允许CCC向东喷发至La Guajira。东风的方向和强度，特别是CLLJ的方向和强度，控制着CCC的位置和路径，CCC在5月，6月，8月，9月和10月在加勒比海南部延伸了900多公里。基于卫星的彩色图像所证明的海面高浓度的叶绿素a被CLLJ进行了半季节调节，这在其松弛阶段允许CCC向东喷发至La Guajira。