HCM_AOPB数据集

gcq*.dta 是 1998 年和 2010 年不同放牧压力下模型模拟的输出。
gcchl.ctl 和 gcfe.ctl 是 GrADS 使用的控制文件，数据信息详细如下：
gcchl.ctl 叶绿素数据
gcfe.ctl 铁数据

实验设计：
本研究使用了区域耦合海洋生物地球化学模型（Christian 等人 2001、Gent 和 Cane 1989、Wang 等人 2009、Zhang 等人 2018）。海洋模型配置为热带太平洋盆地（120°E-76°W，30°S-30°N），水平分辨率为0.3-0.6°。该模型有 20 个 sigma 层，第一层是混合层，它是由大量混合层模型明确计算的（Chen et al 1994）。
为了模拟 1998 年和 2010 年 SPB 事件，我们利用来自 ECMWF/ERA 临时再分析的每日大气强迫来驱动 1997（2009）-1998（2010）的海洋模型作为控制运行。接下来，我们检查了这两个 SPB 事件期间不同放牧压力下的表面叶绿素反应。在与对照运行相同的大气压力下，以 1.0 d-1 的间隔进行了四个敏感性实验，其中浮游动物的最大放牧率从 3.0 d-1（低放牧压力）到 6.0 d-1（高放牧压力）。
为了确定 EUC 运输的铁在促进东太平洋 SPB 中的潜在作用，我们进行了两个简化的模拟。除了1998年1月1日（2010年）开始的初始条件，模型设置与控制运行中的相同，其中人工添加铁（每模型步长1nmol/m3；1模型时间步长为1小时）到 (140°W, 0°) 中第 7 -11 个垂直模型层 (≈100-220 m) 的模拟铁浓度，大致指的是赤道处 EUC 的来源。

gcq*.dta contains model simulation outputs under varying grazing pressures in 1998 and 2010.

gcchl.ctl and gcfe.ctl are control files for GrADS, with detailed data information as follows:
gcchl.ctl: chlorophyll data
gcfe.ctl: iron data

Experimental Design:
This study employed a regional coupled ocean biogeochemical model (Christian et al. 2001, Gent & Cane 1989, Wang et al. 2009, Zhang et al. 2018). The ocean model was configured for the tropical Pacific basin (120°E–76°W, 30°S–30°N), with a horizontal resolution of 0.3–0.6°. The model has 20 sigma layers, with the first layer being the mixed layer, which was explicitly calculated by a comprehensive mixed layer model (Chen et al. 1994).

To simulate the 1998 and 2010 SPB events, we utilized daily atmospheric forcing from ECMWF/ERA Interim reanalysis to drive the ocean model for the periods 1997 (2009)–1998 (2010) as the control run. Next, we examined the surface chlorophyll responses under different grazing pressures during these two SPB events. Four sensitivity experiments were conducted at 1.0 d⁻¹ intervals under the same atmospheric pressure conditions as the control run, where the maximum grazing rate of zooplankton ranged from 3.0 d⁻¹ (low grazing pressure) to 6.0 d⁻¹ (high grazing pressure).

To determine the potential role of iron transported by the Equatorial Undercurrent (EUC) in promoting SPB in the eastern Pacific, we performed two simplified simulations. Except for the initial conditions starting on January 1, 1998 (2010), the model settings were identical to those in the control run. Artificial iron was added at a rate of 1 nmol/m³ per model time step (1 model time step = 1 hour) to the 7th–11th vertical model layers (≈100–220 m) at coordinates (140°W, 0°), which roughly corresponds to the source region of the EUC at the equator.