The locations, speed and time of drifters launched in April and May experiments

The locations, speed and time of drifters launched in April and May experiments (raw data and grid data):
numbers: t+number, order of drifters (see Chen et al., 2022 Appendix table)
April 28th launched: #2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21
May 6th launched: #4,7,8,9,10,11,12,13,14,16,17,18,19,20,21
HCT: Henderson Creek (drifter launched locations)
HIT:Herald Island (drifter launched locations)
lat:latitude
lon:longitude
latHG,lonHG: lon and lat of Hauraki Gulf
t: time
t...h: time since launching in hours
v: speed in m/s
raw:raw data, sampling period is 5 seconds
grid: data averaged every 5 min

本数据集记录了四月及五月实验中投放的漂流浮标的位置、速度及投放时间（原始数据与网格数据）：
数量：t+number，漂流浮标的序列编号（参见陈等，2022年附录表格）；
四月二十八日投放：#2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21；
五月六日投放：#4,7,8,9,10,11,12,13,14,16,17,18,19,20,21。
HCT：亨德森溪（漂流浮标投放地点）；
HIT：赫尔岛（漂流浮标投放地点）；
lat：纬度；
lon：经度；
latHG,lonHG：豪拉基湾的经纬度；
t：时间；
t...h：自投放起的小时数；
v：速度，单位为米每秒；
raw：原始数据，采样周期为5秒；
grid：每5分钟平均一次的数据。