Carrying tower sections through the Spanish bayonet. Installation party for microwave navigation system. Party off of WHITING

Securing tower sections prior to erecting tower. Installation party for microwave navigation system. Party off of WHITING

Seaman Shorty Fuentes adjusts navigation transponder. Installation party for microwave navigation system. Party off of WHITING

Microwave navigation instrument setup on shore.

Microwave navigation instrument setup on dolphin.

Setting up microwave navigation instrument on lighthouse. Party off of PEIRCE

Microwave navigation instrument with attenuator for calibration. Party off of PEIRCE

Microwave navigation instrument setup on lighthouse in Delaware Bay. Party off of PEIRCE

Looking up to microwave navigation instrument setup on Delaware Bay Lighthouse. Party off of PEIRCE

Setting up microwave navigation instrument on pier at Fredericksted. Party off of PEIRCE

Mike Abbott and Skip Payne conducting range-azimuth work on "Guano Rock". Party off of FAIRWEATHER

Conducting range-azimuth hydrography from buoy in Indian River Inlet. Party off of PEIRCE

Conducting range-azimuth hydrography at Pelican Cay. All of the elements of range-azimuth. Observer tracking boat with Wild T-2 theodolite. Party off of WHITING

Conducting range-azimuth hydrography from southeast side of Hans Lollik Island. Party off of WHITING

Conducting range-azimuth hydrography in Miami. Party off of WHITING

Conducting range-azimuth hydrography on south coast of Hawaii. Party off of RAINIER

Microwave navigation instrument on east side of Penobscot Bay. Geodetic target and total station azimuth and distance instrument. Conducting geodetic operations to determine microwave navigation site. Party off of PEIRCE

Setup for calibrating microwave navigation instruments. Master unit set up across sound. Calibration crew from NOAA Ship WHITING

View of microwave navigation instrument calibration setup. Master unit set up across sound. Calibration crew from NOAA Ship WHITING

Launch readout of microwave navigation instrument distances in meters. The vessel is located the indicated distance in meters from stations #1 and #3. Readout on sounding boat from NOAA Ship PEIRCE

Diagram showing relationship of tide to marker at Poolbeg Lighthouse. Datum referred to low water April 8, 1837 for County Dublin. Note use of Mean Sea Level

Tide gauge at Knik Harbor showing range of tide. Over 30 feet of tide. Party of Eoline Hand

Tide gauge at low tide. Photo #1 of sequence

Tide gauge at high tide. Photo #2 of sequence

Erecting a portable tide gauge platform at Kettle Cove. Glendon Boothe on right. Photo #1 of sequence

Erecting a portable tide gauge platform at Kettle Cove. Photo #2 of sequence

Connecting the float to a tide gauge. Tides party of Gerald B. Mills. Photo #1 of sequence

Putting the nipple on a float well. Tides party of Gerald B. Mills. Photo #2 of sequence

Putting the tide gauge on the float well. Tides party of Gerald B. Mills. Photo #3 of sequence

Automatic Digital Recording (ADR) tide gauge. Punched aluminum backed paper tape every 6 minutes with stage of tide

Bubbler tide gauge installation.

Housing for bubbler tide gauge with inspection party. Installation by party off of WHITING

Lt. (j.g.) Martin Conricote hooking up tubing to bubbler tide gauge. Eleuthera Island operations off of PEIRCE

Orifice and tide staff for bubbler gauge on offshore structure. Eleuthera Island operations off of PEIRCE

Tide staff installation at Florida Keys site. Tides party of Gerald B. Mills

Installing offshore pressure-sensing tide gauge. Deployment off of MT. MITCHELL

Installing offshore pressure-sensing tide gauge. Deployment off of MT. MITCHELL

Tugas tide station installation. Installation by party off of PATHFINDER

Automatic tide gauge at Port Protection. Installation by Wire Drag Party No. 4

Automatic tide gauge in Moira Harbor. Party off the WENONAH

Automatic tide gauge mounted on float well. Gauge installed by party off of SURVEYOR. West coast of Baranof Island

Ralph W. Woodworth checking tide gauge in Boston Harbor. Tides party of R. W. Woodworth. From article in Christian Science Monitor, July 23, 1926

Illustration in children's version of "The Sea Around Us". Art imitating life (see photo theb2388). Photo #1 of sequence

B. H. Rigg checking tide gauge. C&GS officer accompanying MacMillan Arctic Expedition. Photo #2 of sequence

Portable automatic tide gauge at old Stone Wharf. Tides party of Glendon Boothe

Standard tide gauge.

Tide gauge at Cape Mordvinof. 60 -foot ladder constructed from top down. Ladder suspended by wires and stakes

Tide gauge at Cape Mordvinof. 60 -foot ladder constructed from top down. Ladder suspended by wires and stakes

Installing tide station on Yunaska Island. Installation party off of EXPLORER

Tide gauge in the Aleutians. Party off of EXPLORER