Last update: April 22, 2014

Where is American Samoa?
About FBNMS
FBNMS Main Site
AS GIS User Group
Photo Gallery
2001 Rebreather Dives
2005 Submersible Dives
GIS Tools
2001 SSE Virtual Workshop
2003 CEO Virtual Workshop
2004 ASCC Workshop
2006 Poster/Brochure
Publications
FBNMS GIS Handbook (pdf)
Related Links
Contact the Web Goddess





This site provides GIS data from shallow-water multibeam bathymetric surveys, submersible dives, and workshops conducted in 2001-2005 in support of the Fagatele Bay National Marine Sanctuary, American Samoa (now known as the National Marine Sanctuary of American Samoa) in the SW Pacific Ocean. Most shallow high-resolution multibeam bathymetric data were collected with a Kongsberg Simrad EM3000 system owned and operated by the College of Marine Science, U. of South Florida. Also included is a recent compilation of deepwater bathymetry for the entire Eastern Samoan region, as well as terrestrial GIS data layers obtained from the American Samoa GIS User Group, and other sources. In addition, we offer various Generic Mapping Tools GMT grids, maps, and various photographic images and graphics. Please note that shallow bathymetric grids have not undergone corrections for differential GPS.

We also have 2009 Samoa Tsunami Resources available, as well as a Featured Gallery in Data Basin.

American Samoa Pelagic Fishery Management Boundary GIS file and metadata, courtesy of Robert O'Conner of NOAA.

Digital Raster Graphics (DRGs) w/metadata of West Tutuila and East Tutuila courtesy of Jonathan Levy, Oceanit (sample graphic).

Important! Have old style GMT grids that need to get into ArcGIS 9/10? In current GMT do: grdreformat -fg oldformat.grd newformat.nc

Hot! See and download our PUBLICATIONS and THESES, many of which are peer-reviewed.

To download a file, PC or Unix users should hold down the RIGHT mouse button and then choose "Save Link As" or "Download Link to Disk" (Internet Explorer). Mac users should hold down the mouse button and then choose "Save Link As" or "Download Link to Disk". In the table below, "NA" means " not available." On a very limited basis we may be able to burn sets of CDs containing all of the bathymetric data sets. Email Dawn for more info.


The data and other resources on this web site are copyrighted by Oregon State University and licensed under the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License . To view a copy of this license, visit the link or send a letter to Creative Commons, 171 Second Street, Suite 300, San Francisco, CA, 94105, USA. If using any data, photos, or other material from this site, we would appreciate a credit to Davey Jones' Locker Seafloor Mapping/Marine GIS Lab, Oregon State University, D. Wright." If wishing to use the data in a commercial, for-profit manner, please contact Denis Sather of the OSU Office of Technology Transfer.

For valuable information and downloads of recent and ongoing shallow-water multibeam, towboard, and ROV surveys in American Samoa, see also the web site of the NOAA Pacific Islands Benthic Habitat Mapping Center (PIBHMC), based in Honolulu, HI.

Quick Links / Categories
Bathy | 3-D | GMT grids | Maps/Graphics
Scroll Down for: Boundaries | Coastlines | Contours | DRG | Geology | Hydrography | Infrastructure | Reefs | Regional | TopoGrid | Vegetation

American Samoa GIS Users: After downloading, please consider the recommended, standardized AS GIS User Group directory structure. Click here (pdf file).


 GIS Data Layers
TUTUILA NEARSHORE BATHY DERIVED FROM IKONOS
DATA SET THUMBNAIL GRAPHIC FGDC METADATA DOWNLOAD FILE
Tutuila Nearshore Bathy Grids figure 1
figure 2
figure 3
metadata 1
metadata 2
error analysis
ArcGIS grids
with pdf maps

(Rt click-Save As
72 Mb zip)
AMERICAN SAMOA COASTAL TERRAIN MODELS (CTMs) (combined bathy and land terrain)
DATA SET THUMBNAIL GRAPHIC FGDC METADATA DOWNLOAD FILE
Tutuila CTM figure metadata
M.S. Thesis
ArcGIS grid
(Rt click-Save As
68.1 Mb zip)
     Other formats     ESRI ASCII file
(190 Mb)
Ofu-Olesega Bathy Derived from Ikonos w/ Multibeam figure Read Me file
metadata 1
metadata 2
ArcGIS grid and more
(Rt click-Save As
22.3 Mb zip)
Maps & Error Analyses
See below for American Samoa CTM
PDF Maps
     
EASTERN SAMOA BATHYMETRIC COMPILATION
DATA SET THUMBNAIL GRAPHIC FGDC METADATA DOWNLOAD FILE
E. Samoa Compilation, Lat/Long, 200-m grid figure metadata
M.S. Thesis
ArcGIS file
(Rt click-Save As
1 Mb)
     Other formats     GMT grid
(Rt click-Save As, 9.6 Mb)
E. Samoa Compilation Stats (Excel files)     Multibeam Index
Seamount Stats
See below for E. Samoa
3-D Fledermaus, GMT Grid Subsets, PDF Maps
     
OTHER BATHYMETRIC GRIDS (mostly shallow bathy)
DATA SET THUMBNAIL GRAPHIC FGDC METADATA DOWNLOAD FILE
Coconut Point Bathymetry, UTM, 1-m grid figure metadata ArcGIS grid
(Rt click-Save As)
Email for Coconut Pt. Rugosity, BPI Zone/Structure, Slope, Aspect grids
Fagaitua Bay Bathymetry, Lat/Long 1-m grid
(for benthic habitat)
fagai.gif fagaitua1m.htm fagaitua1m.zip
(842 K)
Fagaitua Bay BPI Zones Grid
See Maps below metadata ArcGIS grid
(Rt click-Save As)
Fagatele Bay Bathymetry, UTM, 1-m grid figure metadata ArcGIS grid
(Rt click-Save As)
Fagatele Bay Bathymetry, UTM, 3-m grid figure metadata ArcGIS grid
(Rt click-Save As)
Email for FBNMS Rugosity, BPI Zone/Structure, Slope, Aspect grids
Fagatele Bay Bathymetry, Lat/Long 1-m grid fb_sml.gif fbnms1m_new.htm fbnms1m_new.zip
(957 K)
HURL 2005 Cruise
N. Tutuila Deep Bathy, Lat/Long

thumbnail and
location of survey
placeholder metadata in progress
National Park Bathymetry, Lat/Long 2-m grid
natpark.gif natpark2m.htm natpark2m.zip
(1.3 Mb)
National Park BPI Zones Grid
(for benthic habitat)
See Maps below metadata ArcGIS grid
(Rt click-Save As)
Pago Pago Harbor Bathymetry, Lat/Long 5-m grid pago_sml.gif pago5m_new.htm pago5m_new.zip
(181 K)
Pago Pago Harbor Shipwreck Bathymetry, Lat/Long 1-m grid wreck_sml.gif
(potentially dangerous site - pls contact authorities if interested in diving)
wreck1m_new.htm wreck1m_new.zip (44 K)
R/V Revelle 2002 Cruise (Drift Leg 10)
Tutuila Regional Bathy Lat/Long

revelle.gif revelle.htm
additional metadata
revelle_arcmap.zip
(256 K)
Samoa Regional Bathymetry, Smith & Sandwell, Lat/Long 1-km grid samoa_sml.gif samoa_bathy.htm samoa_bathy.zip
(2.4 Mb)
Taema Bank (East) Bathymetry, UTM, 1-m grid figure metadata ArcGIS grid
(Rt click-Save As)
Taema Bank (East) Bathymetry, UTM, 3-m grid figure metadata ArcGIS grid
(Rt click-Save As)
Taema Bank (Western) Bathymetry, UTM, 1-m grid figure metadata ArcGIS grid
(Rt click-Save As)
Taema Bank (Western) Bathymetry, UTM, 3-m grid figure metadata ArcGIS grid
(Rt click-Save As)
Email for Taema Rugosity, BPI Zone/Structure, Slope, Aspect grids
Taema Bank Bathymetry (West), Lat/Long 1-m grid
taema.gif taema1m.htm taema1m.zip
(1.8 Mb)
Transit Bathymetry, Lat/Long 10-m grid
transits.gif transit.htm transit10m.zip
(883 Mb)
Vatia Bay Bathymetry, Lat/Long 2-m grid vatia.jpg metadata vatia2m.zip
(200 Kb)
TOPOGRAPHIC GRIDS
Manu'a 1:24,000 (30-m) DEM, UTM NA inc. in zip man_dem.zip
(4.4 Mb)
Manu'a Slope Grid, UTM NA inc. in zip man_slope.zip
Tutuila 1:24,000 (30-m) DEM, UTM tut_sml.gif inc. in zip tut_dem.zip
(8.1 Mb)
Tutuila 10-m DEM, Lat/Long Decimal Degrees tut_sml.gif tutuila_geo.htm tutuila_geo.zip
(1.6 Mb)
Tutuila 10-m DEM, UTM tut_sml.gif tutuila_dem.htm tutuila_dem.zip
(1.6 Mb)
Tutuila Slope Grid DEM, UTM NA inc.in zip tut_slope.zip
Tutuila 1000 x 1000 ft Topo Shapefile, UTM NA Projection Help Tutuilagrid1000x1000.zip
(100 Kb)
Tutuila 4000 x 3000 ft Topo Shapefile, UTM NA Projection Help Tutuilagrid4000x3000.z ip
(16 Kb)
Tutuila 8000 x 6000 ft Topo >Shapefile, UTM NA Projection Help Tutuilagrid8000x6000.z ip
(8 Kb)
VECTOR (Point, Line, Polygon) GIS LAYERS
Projection procedures that may be needed (588 K pdf)
DATA SET THUMBNAIL GRAPHIC FGDC METADATA DOWNLOAD FILE
Benchmarks, Nat. Geodetic Survey (NGS)
(ArcView shapefile in UTM Zone 2 South NAD 83)
See also National Geodetics Survey Web Site
NA NA Benchmarks.zip
Birkeland Reef Observation Points pts_sml.gif birkptpt.htm birkpt.zip
Birkeland Reef Transects trans_sml.gif transectsl.htm transects.zip
Tutuila Census Stats
(1960-2000)
NA inc. in zip tut_census.zip
Boundaries
AS Coastal Mgmt Zone, Manua
(UTM Zone 2 South NAD 83)
NA inc. in zip man_ASCMP.zip
AS Coastal Mgmt Zone, Tutuila
(UTM Zone 2 South NAD 83)
NA inc. in zip tut_ASCMP.zip
AS Counties & Villages NA inc. in zip
(error in Tutuila villages)
AS_CountiesVillages.zip
Special Mgmt Area, Malaeimi Valley NA inc. in zip tut_malaeimi_sma.zip
Tutuila Villages NA inc. in zip tut_villages.zip
Coastlines/Shoreline (Ikonos-based)
AS Coastline, UTM NA inc. in zip AS_coast02utm.zip
AS Coastline, Lat/Long NA inc. in zip AS_coast02dd.zip
Tutuila Coastline, UTM NA inc. in zip tut_coast02utm.zip
Tutuila Coastline, UTM, Polyline NA inc. in zip tut_coast02-lineutm.zip
Tutuila Coastline, Lat/Long NA inc. in zip tut__anu_coast02dd.zip
Aunu'u Coastline, UTM NA inc. in zip aun_coast02utm.zip
Manu'a Coastline, UTM & Lat/Long NA inc. in zip man_coast02utm.zip man_coast02dd.zip
Ofu/Olosega Coastlines, UTM NA inc. in zip ofu_coast02utm.zip
olo_coast02utm.zip
Ofu/Olosega Coastlines, UTM, PolyLine NA inc. in zip ofu_coast02-lineutm.zip
olo_coast02-lineutm.zip
Ofu/Olosega Coastlines, Lat/Long NA inc. in zip ofu_coast02dd.zip
olo_coast02dd.zip
Ta'u Coastlines, UTM & Lat/Long NA inc. in zip tau_coast02utm.zip
tau_coast02-lineutm.zip
tau_coast02dd.zip
Rose Coastlines, UTM & Lat/Long NA inc. in zip ros_coast02utm.zip
ros_coast02-lineutm.zip
ros_coast02dd.zip
Swains Coastlines, UTM & Lat/Long NA inc. in zip swa_coast02utm.zip
swa_coast02-lineutm.zip
swa_coast02dd.zip
Geology
Tutuila Soils, UTM NA inc. in zip Tut_Soil.zip
Hydrography
Freshwater Biology, Tutuila, UTM NA inc. in zip tut_hydro_biol_utm.zip
Hydrography, USGS, Tutuila, UTM & Lat/Long
(USGS 1:24,000 DLG)
NA inc. in zip tut_hydro_USGSutm.zip
tut_hydro_USGSdd.zip
Streams, Tutuila, UTM & Lat/Long NA inc. in zip tut_streamsutm.zip
tut_streamsdd.zip
Sub-Basins, Tutuila, UTM NA inc. in zip tut_shedminor.zip
Watersheds, Manu'a, UTM NA inc. in zip man_shedmajor.zip
Watersheds, Tutuila, UTM NA inc. in zip tut_shedmajor.zip
Wetlands NA inc. in zip wetlands_data.zip
Infrastructure
Buildings, Tutuila, UTM & Lat/Long NA inc. in zip tut_bld90utm.zip
tut_bld90dd.zip
Buildings, Aunu'u, Lat/Long NA inc. in zip aun_bld90dd.zip
Buildings, Roads, Ta'u, UTM NA inc. in zip tau_roads-building s03.zip
Flood Insurance Rate Maps (FIRMs), Manua, Tau NA inc. in zip manua_tau_FIRM.zip
Flood Insurance Rate Maps (FIRMs), Tutuila NA inc. in zip flood_rate_maps.zip
Roads, Aunu'u, UTM
(GPSed by Kevin Cronk, ASG DOC)
NA inc. in zip aunuu_rds_nadutm.zip
Roads, Manu'a, UTM NA inc. in zip Man_roads02.zip
Roads, Ofu, Olosega, UTM
(GPSed by Kevin Cronk, ASG DOC)
NA NA ofu_olo_rds_nadutm.zip
Roads, Tutuila, east, UTM NA inc. in zip tut_roads03_east.zip
Reefs
Reefs, Samoa
(a more detailed layer from the National Park Service forthcoming)
NA reefsl.htm reefs.zip
Reefs, Ofu
(detailed National Park Service shapefile from CAD drawing)
ofureef_sml.gif ofu.xls
(MS Excel file)
ofu_nps.tar (Unix)
Regional
Countries of the World, 2002, Lat/Long NA NA cntry02.zip
Lat/Long Gridlines NA NA geogrid.zip
Lat/Long Gridlines, 5 deg NA NA Grid5Degree.zip
Topography
Manu'a Contours, 10-, 20-, 50-m, 100-, 200-ft
UTM & Lat/Long
NA inc. in zip man_contour10mutm.zip
man_contour10mdd.zip
man_contour20mutm.zip
man_contour50mutm.zip
man_contour100ftutm.zip
man_contour200ftutm.zip

Tutuila Contours, 10-, 20-, 50-m, 100-, 200-ft
UTM & Lat/Long
NA inc. in zip tut_contour10mutm.zip
tut_contour10mdd.zip
tut_contour20mutm.zip
tut_contour50mutm.zip
tut_contour100ftutm.zip
tut_contour200ftutm.zip

Vegetation
Vegetation, Tutuila, 1988
(thanks to Joe Donnegan USDA Forest Service)
NA not yet
contact Joe
veg88map.zip
(zip of an e00)
DIGITAL RASTER GRAPHICS (DRG, georeferenced images)
Projection procedures that may be needed (588 K pdf)
DATA SET THUMBNAIL GRAPHIC FGDC METADATA DOWNLOAD FILES
(BOTH tif and trw are needed!)
Ofu and Tau DRG, UTM Projection NA ofutau_drg.met.txt ofutau_drg.tif
ofutau_drg.tfw
Tutuila DRG, UTM Projection drg_sml.gif tutuila_drg.met.txt tut_drg.zip (32 Mb)
World Satellite Corp. Mosiac, Lat/Long NA NA wsiearth.zip (18.7 Mb)
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 GMT (Generic Mapping Tools) Grids
Get GMT
DATA SET GRDINFO (Metadata) DOWNLOAD FILE
E. Samoa Compilation, Subset (Cruise) 200-m grids, Lat/Long
N/A zip file | tar gzip
(both are 4.6 Mb)
Fagaitua Bay Bathymetry, 1-m grid, Lat/Long
grdinfo.txt
sample command file
fagaitua1m.grd
(8.9 Mb)
FBNMS Bathymetry, 1-m grid, Lat/Long grdinfo.txt
sample command file
cpt file
fbnms_new1.grd
(13 Mb)
National Park Bathymetry, 2-m grid, Lat/Long
grdinfo.txt
sample command file
natpark2m.grd
(35 Mb)
Pago Pago Harbor Bathymetry, 5-m grid, Lat/Long grdinfo.txt
sample command file
pago_new5.grd
(2.6 Mb)
Pago Pago Harbor Shipwreck Bathymetry, 1-m grid, Lat/Long grdinfo.txt
sample command file
wreck_new1m.grd
(475 K)
Samoa Regional Bathymetry, Smith & Sandwell, 1-km grid, Lat/Long grdinfo.txt
sample command file
samoa.grd
(673 K)
Taema Bank Bathymetry (West), 1-m grid, Lat/Long
grdinfo.txt
sample command file
taema1m.grd
(26 Mb)
Transit Bathymetry, 10-m grid, Lat/Long
grdinfo.txt
sample command file
transit10m.grd
(21 Mb)
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 3-D VISUALIZATIONS
iView3D Info | Get iView3D for PC | Get Beta iView3D for Mac OS X
DATA SET THUMBNAIL GRAPHIC DOWNLOAD sd FILE
Coconut Pt. 1-m Bathy w/slope scalar
thumbnail Zip file
*(includes GMT grid)
Coconut Pt. BPI Zones
thumbnail Zip file
*(includes GMT grid)
Coconut Pt. BPI Structures, scale 70
thumbnail Zip file
*(includes GMT grid)
Coconut Pt. Rugosity
thumbnail Zip file
*(includes GMT grid)
Color Map Files, Fledermaus
Rt Click, Save As ----> bathy cmap
rugosity cmap
zones cmap
E. Samoa Compilation
thumbnail .sd file (14.4 Mb)
shade (9.6 Mb)
scalar (4.8 Mb)
geo (186 Kb)
dtm (4.8 Mb)
Fagaitua Bay, 2001, ve=3x
fagaitua5m_2001.jpg fagaitua_bay_5m.zip
FBNMS 1-m Bathy w/slope scalar
thumbnail Zip file
*(includes GMT grid)
FBNMS BPI Zones
thumbnail Zip file
*(includes GMT grid)
FBNMS BPI Structures, scale 250
thumbnail Zip file
*(includes GMT grid)
FBNMS Rugosity
thumbnail Zip file
*(includes GMT grid)
Fagaitua Bay, 2001, ve=3x
fagaitua5m_2001.jpg fagaitua_bay_5m.zip
Pago Pago Harbor & S, 2001, ve=3x
pago5m_2001.jpg pago_harbor_5m.zip
Revelle Cruise, Tutuila, 2002, ve=4x
revelle200m_2002.jpg revelle200m.zip
Taema East 1-m Bathy w/slope scalar
thumbnail Zip file
*(includes GMT grid)
Taema East BPI Zones
thumbnail Zip file
*(includes GMT grid)
Taema East BPI Structures, scale 250
thumbnail Zip file
*(includes GMT grid)
Taema East Rugosity
thumbnail Zip file
*(includes GMT grid)
Taema West 1-m Bathy w/slope scalar
taema5m_2001.jpg Zip file (Lat/Long)
Zip file (UTM)
*(includes GMT grid)
Taema West BPI Zones
thumbnail Zip file
*(includes GMT grid)
Taema West BPI Structures, scale 250
thumbnail Zip file
*(includes GMT grid)
Taema West Rugosity
thumbnail Zip file
*(includes GMT grid)
Seafloor South of Samoa S_of_Samoa.gif Kings_3j.sd

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 Maps
GIF, JPG and PDF | Get Acrobat Reader
MAP/IMAGE SOURCE DOWNLOAD FILE
2001-'02 Bathymetric Coverage Brian Donahue, Univ. of S. Florida samoa_plan.gif
Coconut Point Rugosity Map
(for benthic habitat)
Emily Lundblad, OrSt JPG image or PDF
Coconut Point BPI Zones
(for benthic habitat)
Emily Lundblad, OrSt JPG image or PDF
Coconut Point BPI Structures
(for benthic habitat)
Emily Lundblad, OrSt JPG image or PDF
E. Samoa Compilation
(seamount shapes, distributions)
Jed Roberts, OrSt study area JPG or PDF
swaths JPG or PDF
seamounts JPG or PDF
slope map JPG or PDF
geomorph JPG or PDF
Fagaitua Bathymetry, 1-m grid Dawn Wright, OrSt fagaitua.gif
Fagaitua BPI Zones
(for benthic habitat)
Emily Larkin, OrSt PDF
Fagaitua BPI Structures
(for benthic habitat)
Emily Larkin, OrSt PDF
FBNMS Bathymetry, 1-m grid Dawn Wright, OrSt fbnms.gif
FBNMS Management Zones Nancy Daschbach, FBNMS zones.pdf
FBNMS Coral Reef Transects, 1985-1995 Charles Birkeland, Univ. of Hawaii
Green et al. (1999)
birkeland.pdf
FBNMS Rugosity Map
(for benthic habitat)
Emily Lundblad, OrSt JPG image or PDF
FBNMS BPI Zones
(for benthic habitat)
Emily Lundblad, OrSt JPG image or PDF
FBNMS BPI Structures
(for benthic habitat)
Emily Lundblad, OrSt JPG image or PDF
Islands of Independent and American Samoa, Map National Park of American Samoa islands.pdf
Islands of Independent and American Samoa, Pretty Graphic Jayne Doucette, Woods Hole Oceanographic Institution's Currents Magazine samoa_whoi.gif
Manua Islands, American Samoa National Park of American Samoa manua.pdf
Map Compilation, Multibeam Bathymetry, Samoa & Florida Brian Donahue, Univ. of S. Florida donahue.pdf
(1.6 Mb)
Map Compilation, Multibeam Bathymetry, GIS Screen Shots Dawn Wright, OrSt samoa_lib.pdf
(5 Mb)
National Park Bathymetry, 2-m grid Dawn Wright, OrSt natpark.gif
National Park BPI Zones
(for benthic habitat)
Emily Larkin, OrSt PDF
National Park BPI Structures
(for benthic habitat)
Emily Larkin, OrSt PDF
Ofu-Olosega Maps & Error Analyses, Bathy from Ikonos Kyle Hogrefe, OrSt zip of PDFs
(7.6 Mb)
Pago Pago Harbor Bathymetry, Shaded Relief, 1-m grid Brian Donahue, Univ. of S. Florida pago.gif
Pago Pago Harbor Shipwreck, Shaded Relief, 1-m grid Brian Donahue, Univ. of S. Florida wreck.gif
Regional Bathymetry, South Pacific David Sandwell
Scripps Marine Geodesy
global_topo.pdf
Samoa and the World Jeanne Harvey for the FBNMS samoa_world.pdf
Samoa Index Map, Pacific National Park of American Samoa globe.pdf
Samoa Index Map, SW Pacific, Tectonic Dawn Wright, OrSt swpac.pdf
Samoa Regional Bathymetry Dawn Wright, OrSt
(from Smith & Sandwell Bathy)
samoa.pdf
Seafloor South of Samoa, 3-D Dawn Wright, OrSt S_of_Samoa.gif
Taema Bank Bathymetry, Shaded Relief, 1-m grid Dawn Wright, OrSt taema.gif
Taema (East) Rugosity Map
(for benthic habitat)
Emily Lundblad, OrSt JPG image or PDF
Taema (East) BPI Zones
(for benthic habitat)
Emily Lundblad, OrSt JPG image or PDF
Taema (East) BPI Structures
(for benthic habitat)
Emily Lundblad, OrSt JPG image or PDF
Taema (West) Rugosity Map
(for benthic habitat)
Emily Lundblad, OrSt JPG image or PDF
Taema (West) BPI Zones
(for benthic habitat)
Emily Lundblad, OrSt JPG image or PDF
Taema (West) BPI Structures
(for benthic habitat)
Emily Lundblad, OrSt JPG image or PDF
Tutuila and Aunu'u, American Samoa Emily Larkin, OrSt JPG image or Large Poster
(14 Mb PDF, Rt Click-Save As)
Tutuila, American Samoa National Park of American Samoa tutuila.pdf
Tutuila Coastal Terrain Models (CTMs) Kyle Hogrefe, OrSt Zip file of PDFs
(17.7 Mb, Rt Click-Save As)
Tonga Trench, south of Samoan Islands Dawn Wright, OrSt tonga.pdf


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Photo montage in header courtesy of National Marine Sanctuary System and Kip Evans, National Geographic Society
This material is based upon work supported by the National Science Foundation under Grant No. 0074635
http://dusk.geo.orst.edu/djl/samoa