Argo BathYmetry SenSing (ABYSS) 2014-01 to 2024-12. In Argo BathYmetry SenSing (ABYSS)

This archive contains Deep Argo ocean bathymetry detection based on information in Argo trajectory, metadata, and technical files.

The product includes locations, depths, and times of ocean bathymetry detection using Deep Argo floats, along with an estimated horizontal position displacement. Metadata will be included to identify the Argo float model, WMO number and cycle during which the ocean detection grounding occurred. Multiple Deep Argo float models contribute to this product and some profile to deepest depth upon descent while others profile upon ascent. Bathymetry detections are associated only with profiles made during the deepest descent. Therefore, for some floats, the bathymetry detection occurs right after descent and for other floats, it occurs right before ascent. Refer to Zilberman et al (2025) paper for further details.

FORMAT:
All products are netCDF files and fill value is ‘99999’ for numbers.

The product has the following variables:

Locations and times:
LATITUDE – transmitted GPS latitude at the surface
LONGITUDE – transmitted GPS longitude at the surface
JULD – transmitted time at the surface
HORIZONTAL_DISPLACEMENT - estimated horizontal position displacement in km
Note on times and locations: these are the closest locations and times to the ocean bathymetry detection from Deep Argo floats. Depending on the float model, if the profile and grounding are upon descent, the GPS location and time are PRIOR to the grounding. If the grounding and profile are upon ascent, the GPS location and time are AFTER the grounding.

Bathymetry detection:
DEPTH_GRND - depth of the bathymetry detection

Associated data:
CYCLE_NUMBER - cycle number of profile during which the float detected bathymetry
WMO_NUMBER - WMO number of Argo float
WMO_INST_TYPE - comes from ‘WMO_INST_TYPE’ variable in Argo files and corresponds to Argo Referent Table R8 to indicate instrument type found here: https://vocab.nerc.ac.uk/search_nvs/R08/

本归档数据集包含基于Argo轨迹、元数据与技术文件信息生成的Deep Argo海洋测深探测成果。

本数据集包含Deep Argo浮标开展海洋测深探测的位置、水深与时间信息，以及估算得到的水平位置位移量。数据集将附带元数据，用于标识Argo浮标型号、WMO（世界气象组织）编号以及发生海洋探测触底的浮标循环周期。本数据集由多款Deep Argo浮标型号共同贡献，部分浮标在下潜过程中抵达最大深度时开展剖面观测，其余浮标则在上浮过程中开展剖面观测。海洋测深探测仅与下潜至最大深度阶段完成的剖面观测相关联，因此对于部分浮标，测深探测发生在下潜完成后即刻；而对于另一部分浮标，测深探测则发生在上浮开始前即刻。如需进一步细节，请参阅Zilberman等人（2025）的研究论文。

格式说明：所有数据集文件均为netCDF（网络通用数据格式）文件，数值型变量的填充值为‘99999’。

本数据集包含以下变量：

#### 位置与时间变量：
LATITUDE——海面传输的GPS纬度
LONGITUDE——海面传输的GPS经度
JULD——海面传输的时间
HORIZONTAL_DISPLACEMENT——估算得到的水平位置位移量，单位：千米

位置与时间说明：上述位置与时间为Deep Argo浮标海洋测深探测时刻最邻近的海面GPS观测位置与时间。根据浮标型号的不同，若剖面观测与触底过程发生在下潜阶段，则GPS位置与时间记录于触底事件之前；若触底与剖面观测发生在上浮阶段，则GPS位置与时间记录于触底事件之后。

#### 海洋测深探测变量：
DEPTH_GRND——海洋测深探测的水深值

#### 关联数据变量：
CYCLE_NUMBER——浮标开展测深探测的剖面循环周期编号
WMO_NUMBER——Argo浮标的WMO（世界气象组织）编号
WMO_INST_TYPE——该变量取自Argo文件中的"WMO_INST_TYPE"字段，对应Argo参考表R8，用于标识仪器类型，详情可查阅：https://vocab.nerc.ac.uk/search_nvs/R08/