Dataset: NRT merged all satellites Global Ocean Gridded Significant Wave Height L4 product and derived variables#
Dataset identifier: cmems_obs-wave_glo_phy-swh_nrt_multi-l4-2deg_P1D
Data store: cmems
How to open this dataset in AVL JupyterLab
cmems_store = new_data_store('cmems')
ds = cmems_store.open_data('cmems_obs-wave_glo_phy-swh_nrt_multi-l4-2deg_P1D')
Bounding box map#
cmems_store = new_data_store('cmems')
ds = cmems_store.open_data('cmems_obs-wave_glo_phy-swh_nrt_multi-l4-2deg_P1D')
Map tiles and data from OpenStreetMap, under the ODbL.
Basic information#
| Parameter | Value |
|---|---|
| Bounding box longitude (°) | -180 to 180 |
| Bounding box latitude (°) | -90 to 90 |
| Time range | 2020-01-01 to 2023-04-14 |
Click here for full dataset metadata.
Variable list#
Click on a variable name to jump to the variable’s full metadata.
| Variable | Long name | Units |
|---|---|---|
| VAVH_DAILY_MAX | Daily maximum significant wave height | m |
| VAVH_DAILY_MEAN | Daily mean significant wave height | m |
| VAVH_DAILY_NBR | Daily number of significant wave height measurements | 1 |
| VAVH_DAILY_STD | Daily standard deviation of significant wave height | m |
| VAVH_INST | Instantaneous significant wave height | m |
| VAVH_INST_NBR | Number of measurements used to estimate the instantaneous significant wave height | 1 |
| VAVH_INST_SCORE | Mapping score of the instantaneous significant wave height | m |
| lat_bnds | [none] | [none] |
| lon_bnds | [none] | [none] |
Full variable metadata#
VAVH_DAILY_MAX#
| Field | Value |
|---|---|
| ancillary_variables | VAVH_DAILY_NBR |
| cell_methods | area: maximum |
| comment | Daily statistics are computed from all available altimetry missions Level 3 along-track measurements from 00 UTC until 23:59 UTC. |
| long_name | Daily maximum significant wave height |
| standard_name | sea_surface_wave_significant_height |
| units | m |
| valid_max | 32767 |
| valid_min | 0 |
VAVH_DAILY_MEAN#
| Field | Value |
|---|---|
| ancillary_variables | VAVH_DAILY_NBR |
| cell_methods | area: mean |
| comment | Daily statistics are computed from all available altimetry missions Level 3 along-track measurements from 00 UTC until 23:59 UTC. |
| long_name | Daily mean significant wave height |
| standard_name | sea_surface_wave_significant_height |
| units | m |
| valid_max | 32767 |
| valid_min | 0 |
VAVH_DAILY_NBR#
| Field | Value |
|---|---|
| comment | Daily statistics are computed from all available altimetry missions Level 3 along-track measurements from 00 UTC until 23:59 UTC. |
| long_name | Daily number of significant wave height measurements |
| standard_name | sea_surface_wave_significant_height number_of_observations |
| units | 1 |
VAVH_DAILY_STD#
| Field | Value |
|---|---|
| ancillary_variables | VAVH_DAILY_NBR |
| cell_methods | area: standard_deviation |
| comment | Daily statistics are computed from all available altimetry missions Level 3 along-track measurements from 00 UTC until 23:59 UTC. |
| long_name | Daily standard deviation of significant wave height |
| standard_name | sea_surface_wave_significant_height |
| units | m |
| valid_max | 32767 |
| valid_min | 0 |
VAVH_INST#
| Field | Value |
|---|---|
| ancillary_variables | VAVH_INST_SCORE VAVH_INST_NBR |
| comment | The gridded instantaneous significant wave height is estimated from all available altimetry missions Level 3 along-track measurements, accounting for their spatial and temporal proximity. |
| long_name | Instantaneous significant wave height |
| standard_name | sea_surface_wave_significant_height |
| units | m |
| valid_max | 32767 |
| valid_min | 0 |
VAVH_INST_NBR#
| Field | Value |
|---|---|
| comment | Number of measurements effectively used to estimate the instantaneous significant wave height. The gridded instantaneous significant wave height is estimated from all available altimetry missions Level 3 along-track measurements, accounting for their spatial and temporal proximity. |
| long_name | Number of measurements used to estimate the instantaneous significant wave height |
| standard_name | sea_surface_wave_significant_height number_of_observations |
| units | 1 |
VAVH_INST_SCORE#
| Field | Value |
|---|---|
| comment | The mapping score is purely theoretical. It mainly traduces the level of confidence in the instantaneous significant wave height, induced by the constellation sampling capability. The gridded instantaneous significant wave height is estimated from all available altimetry missions Level 3 along-track measurements, accounting for their spatial and temporal proximity. |
| long_name | Mapping score of the instantaneous significant wave height |
| standard_name | sea_surface_wave_significant_height mapping_score |
| units | m |
| valid_max | 32767 |
| valid_min | 0 |
lat_bnds#
| Field | Value |
|---|---|
| comment | latitude values at the north and south bounds of each pixel. |
lon_bnds#
| Field | Value |
|---|---|
| comment | longitude values at the west and east bounds of each pixel. |
Full dataset metadata#
| Field | Value |
|---|---|
| Conventions | CF-1.6 |
| Metadata_Conventions | Unidata Dataset Discovery v1.0 |
| cdm_data_type | Grid |
| comment | Significant Wave Height measured by altimetry |
| contact | servicedesk.cmems@mercator-ocean.eu |
| creator_email | servicedesk.cmems@mercator-ocean.eu |
| creator_name | CMEMS - Wave Thematic Assembly Center |
| creator_url | http://marine.copernicus.eu |
| date_created | 2023-04-15T08:00:04Z |
| geospatial_lat_max | 89.0 |
| geospatial_lat_min | -89.0 |
| geospatial_lat_resolution | 2 |
| geospatial_lat_units | degrees_north |
| geospatial_lon_max | 179.0 |
| geospatial_lon_min | -179.0 |
| geospatial_lon_resolution | 2 |
| geospatial_lon_units | degrees_east |
| history | 2023-04-15T08:00:04Z: Creation |
| institution | CLS |
| keywords | Oceans > Ocean Topography > significant wave height |
| keywords_vocabulary | NetCDF COARDS Climate and Forecast Standard Names |
| license | http://marine.copernicus.eu/web/27-service-commitments-and-licence.php |
| platform | CFOSAT, Cryosat-2, HaiYang-2B, HaiYang-2C, Jason-3, SARAL-Altika, Sentinel-3A, Sentinel-3B, Sentinel-6A |
| processing_level | L4 |
| product_version | 202211 |
| project | COPERNICUS MARINE ENVIRONMENT MONITORING SERVICE (CMEMS) |
| references | http://marine.copernicus.eu |
| software_version | L4RT_SWH: 2.1.1 |
| source | Altimetry measurements |
| standard_name_vocabulary | NetCDF Climate and Forecast (CF) Metadata Convention Standard Name Table v37 |
| summary | Near-Real-Time Level-4 Significant Wave Height and derived variables measured by multi-satellite altimetry observations over Global Ocean. |
| time_coverage_duration | P1D |
| time_coverage_end | 2023-04-14T12:00:00Z |
| time_coverage_resolution | P1D |
| time_coverage_start | 2023-04-14T12:00:00Z |
| title | NRT merged all satellites Global Ocean Gridded Significant Wave Height L4 product and derived variables |