92 results
 Pacific Data Hub

In March 1993, a SEAFRAME (Sea Level Fine Resolution Acoustic Measuring Equipment) gauge was installed in Funafuti. Readings(height observations) recorded from the gauge, is held in this record and provided in the form of Yearly Reports, Tide Prediction Calendars and Hourly Sea Level and meteorological data (update frequency- real time) from the Funafuti station. This is downloadable from the Distribution Info Section of this metadata record.The gauge has been returning high resolution, good scientific quality data since its installation.

 Pacific Data Hub

This record holds the Bathymetry datasets of the offshore areas of Nui Atoll island in Tuvalu. The dataset are in XYZ text delimited format . Nui is a N-S elongated atoll island approximately 8.1 km long and 2.5 km wide, centred on 7 degrees 13'S and 177 degrees 9'E.

 Pacific Data Hub

Nanumea is an elongated atoll 13 km long along the NW-SE axis, and 2.4 km wide along the SWNE axis, centred on 176 degrees 6'E and 5 degrees 39'S. The surveyed area extends to a maximum of approximately 5.3 km offshore from the coastline at the northwest tip of the atoll.
The resultant data from the SOPAC marine survey conducted in 2004 was used to produce nine bathymetry charts for Tuvalu at scales ranging from 1:20 000 to 1:50 000 and the Nanumea bathymetry chart is available here for download under the Distribution Info.

 Pacific Data Hub

Nanumanga Island, located at 6 degrees 17'S and 176 degrees 19'E, is a low reef island comprising a single island approximately 3.7 km long along the N-S axis, and 1.6 km wide along the E-W. The island is surrounded by a fringing reef, with small central brackish-water lagoons. The surveyed area extends to an average of approximately 4.0 km, with maximum coverage of 7.3 km from the coastline to the north.

 Pacific Data Hub

The Pacific Islands Applied Geoscience Commission (SOPAC) carried out a marine survey for Tuvalu in the waters around all nine atolls and low reef islands, namely, Nanumea,
Niutao, Nanumanga, Nui, Vaitupu, Nukufetau, Funafuti, Nukulaelae, Niulakita. This work was initiated by the SOPAC/EU Reducing Vulnerability of Pacific ACP States Project.
This report describes the high-resolution bathymetric mapping survey carried out over a

 Pacific Data Hub

Vaitupu Island is located at 178 degrees 40'E and 7 degrees 28'S, and displays composite characteristics of atoll and low reef island forms, classified as a part-raised atoll with an enclosed lagoon by Scott and Rotondo (1983). The survey area extended approximately 1.8 km offshore from the coastline. The resultant data from the SOPAC marine survey in 2004 for Tuvalu was used to produce nine bathymetry charts at scales ranging from 1:20 000 to 1:50 000 and the Vaitupu chart is available for download here under the Distribution Info section .

 Pacific Data Hub

Niutao Island, located at 6 degrees 6'S and 177 degrees 20'E, is a low reef island comprising a single island approximately 2.7 km long (E-W), 1.3 km wide (N-S). It is surrounded by a fringing reef and has a small central brackish-water pond. The surveyed area extends to an average of approximately 3.5 km from the coastline.
The resultant data from the SOPAC marine survey conducted in 2004 was used to produce nine bathymetry charts for Tuvalu at scales ranging from 1:20 000 to 1:50 000 and the Niutao bathymetry chart is available here for download under the Distribution Info.

 Pacific Data Hub

Nui is a N-S elongated atoll island approximately 8.1 km long and 2.5 km wide, centred on 7 degrees 13'S

 Pacific Data Hub

Vaitupu Island is located at 178 degrees 40'E and 7 degrees 28'S, and displays composite characteristics of atoll and low reef island forms, classified as a part-raised atoll with an enclosed lagoon by Scott and Rotondo (1983). The survey area extended approximately 1.8 km offshore from the coastline. The resultant data from the SOPAC marine survey in 2004 for Tuvalu was used to produce nine bathymetry charts at scales ranging from 1:20 000 to 1:50 000 and the Vaitupu chart is available for download here under the Distribution Info section .

 Pacific Data Hub

Niutao Island, located at 6 degrees 6'S and 177 degrees 20'E, is a low reef island comprising a single island approximately 2.7 km long (E-W), 1.3 km wide (N-S). It is surrounded by a fringing reef and has a small central brackish-water pond. The surveyed area extends to an average of approximately 3.5 km from the coastline.
The resultant data from the SOPAC marine survey conducted in 2004 was used to produce nine bathymetry charts for Tuvalu at scales ranging from 1:20 000 to 1:50 000 and the Niutao bathymetry chart is available here for download under the Distribution Info.

 Pacific Data Hub

Nui is a N-S elongated atoll island approximately 8.1 km long and 2.5 km wide, centred on 7 degrees 13'S

 Pacific Data Hub

This record holds the bathymetry chart of the offshore areas of Niulakita in Tuvalu. Chart is the result of multibeam survey conducted by SPC-SOPAC in 2004. Niulakita is the southern-most as well as the smallest and most isolated island, located in the southern part of the EEZ of Tuvalu. The surveyed area extends to a maximum of approximately 10.5 km offshore from the coastline at the southwest margin. The Niulakita Chart available here for download under the Distribution Info section of this record.

 Pacific Data Hub

This record holds the bathymetry chart of the offshore areas of Niulakita in Tuvalu. Chart is the result of multibeam survey conducted by SPC-SOPAC in 2004. Niulakita is the southern-most as well as the smallest and most isolated island, located in the southern part of the EEZ of Tuvalu. The surveyed area extends to a maximum of approximately 10.5 km offshore from the coastline at the southwest margin. The Niulakita Chart available here for download under the Distribution Info section of this record.

 Pacific Data Hub

Funafuti is the largest atoll of the nine low reef islands and atolls that form the Tuvalu volcanic island chain. It comprises numerous islets around a central lagoon that is approximately 25.1 km (N-S) by 18.4 km (W-E), centered on 179 degrees 7'E and 8 degrees 30'S. The resultant data from the SOPAC marine survey carried out for Tuvalu in 2004 was used to produce nine bathymetry charts ,at scales ranging from 1:20 000 to 1:50 000 and the Funafuti Chart is available here for download under the section Distribution Info.

 Pacific Data Hub

Funafuti is the largest atoll of the nine low reef islands and atolls that form the Tuvalu volcanic island chain. It comprises numerous islets around a central lagoon that is approximately 25.1 km (N-S) by 18.4 km (W-E), centered on 179 degrees 7'E and 8 degrees 30'S. The resultant data from the SOPAC marine survey carried out for Tuvalu in 2004 was used to produce nine bathymetry charts ,at scales ranging from 1:20 000 to 1:50 000 and the Funafuti Chart is available here for download under the section Distribution Info.

 Pacific Data Hub

Nukulaelae atoll is located at 179 degrees 50'E and 9 degrees 23'S, with dimensions of 10.8 km along the NW-SE axis and 4.7 km along the narrow SW-NE axis. The atoll is characterised by a large central lagoon with some 20 vegetated islands predominantly on the eastern side of the atoll.
The resultant data from the SOPAC marine survey carried out for Tuvalu in 2004 was used to produce nine bathymetry charts, at scales ranging from 1:20 000 to 1:50 000 and the Nukulaelae Chart is available here for download under Distribution Info.

 Pacific Data Hub

Nukulaelae atoll is located at 179 degrees 50'E and 9 degrees 23'S, with dimensions of 10.8 km along the NW-SE axis and 4.7 km along the narrow SW-NE axis. The atoll is characterised by a large central lagoon with some 20 vegetated islands predominantly on the eastern side of the atoll.
The resultant data from the SOPAC marine survey carried out for Tuvalu in 2004 was used to produce nine bathymetry charts, at scales ranging from 1:20 000 to 1:50 000 and the Nukulaelae Chart is available here for download under Distribution Info.

 Pacific Data Hub

A SOPAC project funded by the European Union and the Australian Government with the assistance of the Tuvalu Government ,involved a De 719e Raytheon precision echo sounder used to profile the seabed. Bathymetry data created from this was used as post-dredging data which was analyzed against 2 pre-dredging bathymetry data sets surveyed previously to assess changes in the lagoon sea floor.

 Pacific Data Hub

A SOPAC project funded by the European Union and the Australian Government with the assistance of the Tuvalu Government ,involved a De 719e Raytheon precision echo sounder used to profile the seabed. Bathymetry data created from this was used as post-dredging data which was analyzed against 2 pre-dredging bathymetry data sets surveyed previously to assess changes in the lagoon sea floor.

 Pacific Data Hub

A SOPAC project funded by the European Union and the Australian Government with the assistance of the Tuvalu Government ,involved a De 719e Raytheon precision echo sounder used to profile the seabed. Bathymetry data created from this was used as post-dredging data which was analyzed against 2 pre-dredging bathymetry data sets surveyed previously to assess changes in the lagoon sea floor.