Make-A-Graph Form
type: Distribution
access URL: http://www.neracoos.org/erddap/tabledap/ONSET_gloucester_hourly_water_level.graph
description: ERDDAP's Make-A-Graph .html web page for this dataset. Create an image with a map or graph of a subset of the data.
issued: 2021-07-03T01:17:08.946505
modified: 2025-11-22T20:49:47.192477

US Migrating
type: Agent

ERDDAP-tabledap
type: Distribution
access URL: http://www.neracoos.org/erddap/tabledap/ONSET_gloucester_hourly_water_level
description: ERDDAP's tabledap service (a flavor of OPeNDAP) for tabular (sequence) data. Add different extensions (e.g., .html, .graph, .das, .dds) to the base URL for different purposes.
issued: 2021-07-03T01:17:08.946517
modified: 2025-11-22T20:49:47.194170

Background Information
type: Distribution
access URL: http://hobolink.com
description: Background information from the source
format: EXE
issued: 2021-07-03T01:17:08.946509
modified: 2025-11-22T20:49:47.192931

OPeNDAP
type: Distribution
access URL: http://www.neracoos.org/erddap/tabledap/ONSET_gloucester_hourly_water_level
description: An OPeNDAP service for tabular (sequence) data. Add different extensions (e.g., .html, .das, .dds) to the base URL for different purposes.
issued: 2021-07-03T01:17:08.946522
modified: 2025-11-22T20:49:47.194975

Background Information
type: Distribution
access URL: http://hobolink.com
description: Background information from the source
format: EXE
issued: 2021-07-03T01:17:08.946519
modified: 2025-11-22T20:49:47.194558

Gloucester, MA Tide Gauge
type: Dataset
keyword: hampton
keyword: temperature
keyword: mllw
keyword: temp
keyword: geoss
keyword: united-states
keyword: longitude
keyword: msl
keyword: geo
keyword: amerigeo
keyword: hobolink
keyword: latitude
keyword: ckan
keyword: tide
keyword: north-america
keyword: time
keyword: sea
keyword: amerigeoss
keyword: water-level
keyword: gauge
keyword: onset
keyword: mean
keyword: station
keyword: meter
keyword: neracoos
keyword: national
description: Tide gauge located in Gloucester, MA. Funded by NERACOOS. Data is reported in elevation above MLLW (NAVD88) in feet and also converted to meters. NOAA uses Mean Lower Low Water (MLLW), which is the average height of the lowest tide recorded at a tide station each day during a 19-year recording period, known as the National Tidal Datum Epoch.[5] MLLW is only a mean, so some tidal levels may be negative relative to MLLW; see also mean low water spring. The 19-year recording period is the nearest full year count to the 18.6-year cycle of the lunar node regression, which has an effect on tides. At this location Mean Sea Level (MSL) is 1.453 meters above MLLW Benchmark used: NOAA Station ID: 8441841 - GLOUCESTER HARBOR (with extrapolated estimate) MSL meters = (MLLW ft. * 0.3048) + GUAGE location correction.
issued: 2025-11-22T20:49:47.209150
modified: 2025-11-22T20:49:47.209154
spatial: Location

Background Information
type: Distribution
access URL: http://hobolink.com
description: Background information from the source
format: EXE
issued: 2021-07-03T01:17:08.946512
modified: 2025-11-22T20:49:47.193364

Background Information
type: Distribution
access URL: http://hobolink.com
description: Background information from the source
format: EXE
issued: 2021-07-03T01:17:08.946514
modified: 2025-11-22T20:49:47.193775

Data Subset Form
type: Distribution
access URL: http://www.neracoos.org/erddap/tabledap/ONSET_gloucester_hourly_water_level.html
description: ERDDAP's version of the OPeNDAP .html web page for this dataset. Specify a subset of the dataset and download the data via OPeNDAP or in many different file types.
format: HTML
issued: 2021-07-03T01:17:08.946497
modified: 2025-11-22T20:49:47.191859