Author: Dani Pettrey
Publisher: Baker Books
ISBN: 1441271163
Category : Fiction
Languages : en
Pages : 320
Book Description
"Submerged is romantic suspense that will keep you up at night!"--Bestselling Author Dee Henderson A sabotaged plane. Two dead deep-water divers. Yancey, Alaska was a quiet town...until the truth of what was hidden in the depths off the coast began to appear. Bailey Craig vowed never to set foot in Yancey again. She has a past, and a reputation--and Yancey's a small town. She's returned to bury a loved one killed in the plane crash and is determined not to stay even an hour more than necessary. But then dark evidence emerges and Bailey's own expertise becomes invaluable for the case. Cole McKenna can handle the deep-sea dives and helping the police recover evidence. He can even handle the fact that a murderer has settled in his town and doesn't appear to be moving on. But dealing with the reality of Bailey's reappearance is a tougher challenge. She broke his heart, but she is not the same girl who left Yancey. He let her down, but he's not the same guy she left behind. Can they move beyond the hurts of their pasts and find a future together?
Submerged (Alaskan Courage Book #1)
Author: Dani Pettrey
Publisher: Baker Books
ISBN: 1441271163
Category : Fiction
Languages : en
Pages : 320
Book Description
"Submerged is romantic suspense that will keep you up at night!"--Bestselling Author Dee Henderson A sabotaged plane. Two dead deep-water divers. Yancey, Alaska was a quiet town...until the truth of what was hidden in the depths off the coast began to appear. Bailey Craig vowed never to set foot in Yancey again. She has a past, and a reputation--and Yancey's a small town. She's returned to bury a loved one killed in the plane crash and is determined not to stay even an hour more than necessary. But then dark evidence emerges and Bailey's own expertise becomes invaluable for the case. Cole McKenna can handle the deep-sea dives and helping the police recover evidence. He can even handle the fact that a murderer has settled in his town and doesn't appear to be moving on. But dealing with the reality of Bailey's reappearance is a tougher challenge. She broke his heart, but she is not the same girl who left Yancey. He let her down, but he's not the same guy she left behind. Can they move beyond the hurts of their pasts and find a future together?
Publisher: Baker Books
ISBN: 1441271163
Category : Fiction
Languages : en
Pages : 320
Book Description
"Submerged is romantic suspense that will keep you up at night!"--Bestselling Author Dee Henderson A sabotaged plane. Two dead deep-water divers. Yancey, Alaska was a quiet town...until the truth of what was hidden in the depths off the coast began to appear. Bailey Craig vowed never to set foot in Yancey again. She has a past, and a reputation--and Yancey's a small town. She's returned to bury a loved one killed in the plane crash and is determined not to stay even an hour more than necessary. But then dark evidence emerges and Bailey's own expertise becomes invaluable for the case. Cole McKenna can handle the deep-sea dives and helping the police recover evidence. He can even handle the fact that a murderer has settled in his town and doesn't appear to be moving on. But dealing with the reality of Bailey's reappearance is a tougher challenge. She broke his heart, but she is not the same girl who left Yancey. He let her down, but he's not the same guy she left behind. Can they move beyond the hurts of their pasts and find a future together?
Submerged
Author: Janice Hisle
Publisher:
ISBN: 9780974060279
Category :
Languages : en
Pages :
Book Description
A compelling true-crime drama, based on exclusive new information, Submerged exposes hidden angles of a case that captivated and divided an ordinary American community, tore apart two families and tested the criminal justice system. Compelled by conscience and curiosity, former Cincinnati Enquirer reporter Janice (Morse) Hisle-who covered the saga of Ryan and Sarah Widmer from the start-dug deep for material that tells the untold tale: dozens of interviews, 6,000 pages of trial transcripts and previously unrevealed records.Submerged will draw you into the unexplored depths of a stranger-than-fiction true story-one that you'll still be pondering long after you've finished turning the pages.
Publisher:
ISBN: 9780974060279
Category :
Languages : en
Pages :
Book Description
A compelling true-crime drama, based on exclusive new information, Submerged exposes hidden angles of a case that captivated and divided an ordinary American community, tore apart two families and tested the criminal justice system. Compelled by conscience and curiosity, former Cincinnati Enquirer reporter Janice (Morse) Hisle-who covered the saga of Ryan and Sarah Widmer from the start-dug deep for material that tells the untold tale: dozens of interviews, 6,000 pages of trial transcripts and previously unrevealed records.Submerged will draw you into the unexplored depths of a stranger-than-fiction true story-one that you'll still be pondering long after you've finished turning the pages.
Submerged: Adventures of America's Most Elite Underwater Archeology Team
Author: Daniel Lenihan
Publisher: ReadHowYouWant.com
ISBN: 1458780856
Category : Social Science
Languages : en
Pages : 482
Book Description
Adventure writing at its best, Submerged is the first book on the remarkable story of America's elite underwater archeology team. Daniel Lenihan recounts experiences from his 25 years as founder and head of the award-winning Submerged Cultural Resources Unit (SCRU) team of the U.S. National Park Service, world-class divers - talented archeologists, historians, and photographers charged with the mission of surveying, mapping, investigating, and protecting shipwrecks and sites that constitute America's sunken heritage. In Submerged, Lenihan takes the reader on a kaleidoscope of the team's underwater experiences from 1975 to the present - from Florida caves to ancient ruins covered by reservoirs in the desert southwest; to a WWII Japanese submarine off the Alaskan coast; to the lower rings of hell to retrieve the bodies of drowned divers; to gripping accounts of personal survival in underwater caves, ships, and submerged buildings.Displaying a passion for extreme diving combined with disciplined professionalism as park ranger-archeologists, the SCRU team tackles astonishing, often harrowing assignments, including; The Isle Royale shipwrecks; Surveying ten large ships sunk from the mid-19th to mid-20th centuries in the middle of the frigid and deep Lake Superior. The USS Arizona in Pearl Harbor; Executing the largest mapping project ever conducted underwater, and his personal impressions as the first deep diver to explore and video the entire ship in 1983 Excavating the hull of the HL Hunley, the first submarine in history to sink an enemy ship, in Charleston Harbor during the Civil War Resurveying of the ships sunk by atomic bombs at Bikini Atoll, including the aircraft carrier USS Saratoga and Japanese battleship Nagato With an aggressive preservation ethic, the team discovers and documents shipwrecks from Florida to Alaska, and even studies the haunts of pirates and prehistoric cultures in Micronesia.This engaging book, written with a mixture of wonder, intensity, pathos and humor, records for the first time the historic and social significance of the underwater research programs conducted by this fascinating unit of the U.S. National Park Service. Sure to delight anyone interested in diving, archeology, American history, adventure, and rescure missions, this fast-paced volume brings an entirely new perspective to the marvels of America's underwater treasures.
Publisher: ReadHowYouWant.com
ISBN: 1458780856
Category : Social Science
Languages : en
Pages : 482
Book Description
Adventure writing at its best, Submerged is the first book on the remarkable story of America's elite underwater archeology team. Daniel Lenihan recounts experiences from his 25 years as founder and head of the award-winning Submerged Cultural Resources Unit (SCRU) team of the U.S. National Park Service, world-class divers - talented archeologists, historians, and photographers charged with the mission of surveying, mapping, investigating, and protecting shipwrecks and sites that constitute America's sunken heritage. In Submerged, Lenihan takes the reader on a kaleidoscope of the team's underwater experiences from 1975 to the present - from Florida caves to ancient ruins covered by reservoirs in the desert southwest; to a WWII Japanese submarine off the Alaskan coast; to the lower rings of hell to retrieve the bodies of drowned divers; to gripping accounts of personal survival in underwater caves, ships, and submerged buildings.Displaying a passion for extreme diving combined with disciplined professionalism as park ranger-archeologists, the SCRU team tackles astonishing, often harrowing assignments, including; The Isle Royale shipwrecks; Surveying ten large ships sunk from the mid-19th to mid-20th centuries in the middle of the frigid and deep Lake Superior. The USS Arizona in Pearl Harbor; Executing the largest mapping project ever conducted underwater, and his personal impressions as the first deep diver to explore and video the entire ship in 1983 Excavating the hull of the HL Hunley, the first submarine in history to sink an enemy ship, in Charleston Harbor during the Civil War Resurveying of the ships sunk by atomic bombs at Bikini Atoll, including the aircraft carrier USS Saratoga and Japanese battleship Nagato With an aggressive preservation ethic, the team discovers and documents shipwrecks from Florida to Alaska, and even studies the haunts of pirates and prehistoric cultures in Micronesia.This engaging book, written with a mixture of wonder, intensity, pathos and humor, records for the first time the historic and social significance of the underwater research programs conducted by this fascinating unit of the U.S. National Park Service. Sure to delight anyone interested in diving, archeology, American history, adventure, and rescure missions, this fast-paced volume brings an entirely new perspective to the marvels of America's underwater treasures.
Submerged
Author: Vita Ayala
Publisher: Vault Comics
ISBN: 1638490600
Category : Young Adult Fiction
Languages : en
Pages : 100
Book Description
Greek mythology meets the New York City subway in SUBMERGED, where a sister descends into the underworld to save her brother as the biggest storm in history hits New York. A YALSA "GREAT GRAPHIC NOVEL FOR TEENS" List 2020 title THE BIGGEST STORM IN NEW YORK'S HISTORY IS BREWING. LET IT POUR. On the night of the biggest storm in New York City history, Elysia Puente gets a call from her estranged little brother Angel, terrified, begging for help. When the call cuts out suddenly, despite the bad feelings between them, Ellie rushes into the night. Finding his broken phone in front of a barricaded subway station, Ellie follows echoes of her brother into the sinister darkness of the underground, desperate to find him before it’s too late. As the flood waters rise, Elysia descends deeper and deeper into a mysterious and haunting underground in search of Angel. Collects the complete four issue series.
Publisher: Vault Comics
ISBN: 1638490600
Category : Young Adult Fiction
Languages : en
Pages : 100
Book Description
Greek mythology meets the New York City subway in SUBMERGED, where a sister descends into the underworld to save her brother as the biggest storm in history hits New York. A YALSA "GREAT GRAPHIC NOVEL FOR TEENS" List 2020 title THE BIGGEST STORM IN NEW YORK'S HISTORY IS BREWING. LET IT POUR. On the night of the biggest storm in New York City history, Elysia Puente gets a call from her estranged little brother Angel, terrified, begging for help. When the call cuts out suddenly, despite the bad feelings between them, Ellie rushes into the night. Finding his broken phone in front of a barricaded subway station, Ellie follows echoes of her brother into the sinister darkness of the underground, desperate to find him before it’s too late. As the flood waters rise, Elysia descends deeper and deeper into a mysterious and haunting underground in search of Angel. Collects the complete four issue series.
The Submerged State
Author: Suzanne Mettler
Publisher: University of Chicago Press
ISBN: 0226521664
Category : Political Science
Languages : en
Pages : 172
Book Description
“Keep your government hands off my Medicare!” Such comments spotlight a central question animating Suzanne Mettler’s provocative and timely book: why are many Americans unaware of government social benefits and so hostile to them in principle, even though they receive them? The Obama administration has been roundly criticized for its inability to convey how much it has accomplished for ordinary citizens. Mettler argues that this difficulty is not merely a failure of communication; rather it is endemic to the formidable presence of the “submerged state.” In recent decades, federal policymakers have increasingly shunned the outright disbursing of benefits to individuals and families and favored instead less visible and more indirect incentives and subsidies, from tax breaks to payments for services to private companies. These submerged policies, Mettler shows, obscure the role of government and exaggerate that of the market. As a result, citizens are unaware not only of the benefits they receive, but of the massive advantages given to powerful interests, such as insurance companies and the financial industry. Neither do they realize that the policies of the submerged state shower their largest benefits on the most affluent Americans, exacerbating inequality. Mettler analyzes three Obama reforms—student aid, tax relief, and health care—to reveal the submerged state and its consequences, demonstrating how structurally difficult it is to enact policy reforms and even to obtain public recognition for achieving them. She concludes with recommendations for reform to help make hidden policies more visible and governance more comprehensible to all Americans. The sad truth is that many American citizens do not know how major social programs work—or even whether they benefit from them. Suzanne Mettler’s important new book will bring government policies back to the surface and encourage citizens to reclaim their voice in the political process.
Publisher: University of Chicago Press
ISBN: 0226521664
Category : Political Science
Languages : en
Pages : 172
Book Description
“Keep your government hands off my Medicare!” Such comments spotlight a central question animating Suzanne Mettler’s provocative and timely book: why are many Americans unaware of government social benefits and so hostile to them in principle, even though they receive them? The Obama administration has been roundly criticized for its inability to convey how much it has accomplished for ordinary citizens. Mettler argues that this difficulty is not merely a failure of communication; rather it is endemic to the formidable presence of the “submerged state.” In recent decades, federal policymakers have increasingly shunned the outright disbursing of benefits to individuals and families and favored instead less visible and more indirect incentives and subsidies, from tax breaks to payments for services to private companies. These submerged policies, Mettler shows, obscure the role of government and exaggerate that of the market. As a result, citizens are unaware not only of the benefits they receive, but of the massive advantages given to powerful interests, such as insurance companies and the financial industry. Neither do they realize that the policies of the submerged state shower their largest benefits on the most affluent Americans, exacerbating inequality. Mettler analyzes three Obama reforms—student aid, tax relief, and health care—to reveal the submerged state and its consequences, demonstrating how structurally difficult it is to enact policy reforms and even to obtain public recognition for achieving them. She concludes with recommendations for reform to help make hidden policies more visible and governance more comprehensible to all Americans. The sad truth is that many American citizens do not know how major social programs work—or even whether they benefit from them. Suzanne Mettler’s important new book will bring government policies back to the surface and encourage citizens to reclaim their voice in the political process.
Submerged on the Surface
Author: Richard N. Lutjens, Jr.
Publisher: Berghahn Books
ISBN: 1785334565
Category : History
Languages : en
Pages : 255
Book Description
Between 1941 and 1945, thousands of German Jews, in fear for their lives, made the choice to flee their impending deportations and live submerged in the shadows of the Nazi capital. Drawing on a wealth of archival evidence and interviews with survivors, this book reconstructs the daily lives of Jews who stayed in Berlin during the war years. Contrary to the received wisdom that “hidden” Jews stayed in attics and cellars and had minimal contact with the outside world, the author reveals a cohort of remarkable individuals who were constantly on the move and actively fought to ensure their own survival.
Publisher: Berghahn Books
ISBN: 1785334565
Category : History
Languages : en
Pages : 255
Book Description
Between 1941 and 1945, thousands of German Jews, in fear for their lives, made the choice to flee their impending deportations and live submerged in the shadows of the Nazi capital. Drawing on a wealth of archival evidence and interviews with survivors, this book reconstructs the daily lives of Jews who stayed in Berlin during the war years. Contrary to the received wisdom that “hidden” Jews stayed in attics and cellars and had minimal contact with the outside world, the author reveals a cohort of remarkable individuals who were constantly on the move and actively fought to ensure their own survival.
Around the World Submerged
Author: Edward L. Beach
Publisher: Naval Institute Press
ISBN: 1612511988
Category : History
Languages : en
Pages : 338
Book Description
When the nuclear-powered submarine USS Triton was commissioned in November 1959, its commanding officer, Captain Edward L. Beach, planned a routine shakedown cruise in the North Atlantic. Two weeks before the scheduled cruise, however, Beach was summoned to Washington and told of the immediate necessity to prove the reliability of the Rickover-conceived submarine. His new secret orders were to take the Triton around the world, entirely submerged the total distance. This is Beach's gripping firsthand account of what went on during the 36,000 nautical-mile voyage whose record for speed and endurance still stands today. It brings to life the many tense events in the historic journey: the malfunction of the essential fathometer that indicated the location of undersea mountains and shallow waters, the sudden agonizing illness of a senior petty officer, and the serious problems with the ship's main hydraulic oil system. Intensely dramatic, Beach's chronicle also describes the psychological stresses of the journey and some touching moments shared by the crew. A skillful story teller, he recounts the experience in such detail that readers feel they have been along for the ride of a lifetime.
Publisher: Naval Institute Press
ISBN: 1612511988
Category : History
Languages : en
Pages : 338
Book Description
When the nuclear-powered submarine USS Triton was commissioned in November 1959, its commanding officer, Captain Edward L. Beach, planned a routine shakedown cruise in the North Atlantic. Two weeks before the scheduled cruise, however, Beach was summoned to Washington and told of the immediate necessity to prove the reliability of the Rickover-conceived submarine. His new secret orders were to take the Triton around the world, entirely submerged the total distance. This is Beach's gripping firsthand account of what went on during the 36,000 nautical-mile voyage whose record for speed and endurance still stands today. It brings to life the many tense events in the historic journey: the malfunction of the essential fathometer that indicated the location of undersea mountains and shallow waters, the sudden agonizing illness of a senior petty officer, and the serious problems with the ship's main hydraulic oil system. Intensely dramatic, Beach's chronicle also describes the psychological stresses of the journey and some touching moments shared by the crew. A skillful story teller, he recounts the experience in such detail that readers feel they have been along for the ride of a lifetime.
The Biogeochemistry of Submerged Soils
Author: Guy Kirk
Publisher: John Wiley & Sons
ISBN: 0470863021
Category : Science
Languages : en
Pages : 304
Book Description
Submerged soils and the wetlands they support are of huge practical importance: in global element cycles, as centres of biodiversity, in global food production. They are also uniquely interesting scientifically because of their peculiar biogeochemistry and the adaptations of plants and microbes to it. This book describes the physical, chemical and biological processes operating in submerged soils and governing their properties. It describes the transport processes controlling the fluxes of gases and solutes through the soil; the interchange of solutes between solid, liquid and gas phases; reduction and oxidation processes; biological processes in the soil and overlying water; and processes in the roots and rhizospheres of wetland plants. The dynamics of nutrients, toxins, pollutants and trace gases are then discussed in terms of these processes and in relation to wetland productivity and global element cycles. Written by a renowned expert in the field, this work will be invaluable to earth, environmental and agricultural scientists concerned with natural or man-made wetlands, and to advanced undergraduate and graduate studen ts of these topics.
Publisher: John Wiley & Sons
ISBN: 0470863021
Category : Science
Languages : en
Pages : 304
Book Description
Submerged soils and the wetlands they support are of huge practical importance: in global element cycles, as centres of biodiversity, in global food production. They are also uniquely interesting scientifically because of their peculiar biogeochemistry and the adaptations of plants and microbes to it. This book describes the physical, chemical and biological processes operating in submerged soils and governing their properties. It describes the transport processes controlling the fluxes of gases and solutes through the soil; the interchange of solutes between solid, liquid and gas phases; reduction and oxidation processes; biological processes in the soil and overlying water; and processes in the roots and rhizospheres of wetland plants. The dynamics of nutrients, toxins, pollutants and trace gases are then discussed in terms of these processes and in relation to wetland productivity and global element cycles. Written by a renowned expert in the field, this work will be invaluable to earth, environmental and agricultural scientists concerned with natural or man-made wetlands, and to advanced undergraduate and graduate studen ts of these topics.
Submerged
Author: Cheryl Kaye Tardif
Publisher: Imajin Books
ISBN: 1772233870
Category : Fiction
Languages : en
Pages : 347
Book Description
From the international bestselling author that brought you CHILDREN OF THE FOG comes a terrifying new thriller that will leave you breathless… "Submerged reads like an approaching storm, full of darkness, dread and electricity. Prepare for your skin to crawl." —Andrew Gross, New York Times bestselling author of 15 Seconds Two strangers submerged in guilt, brought together by fate… After a tragic car accident claims the lives of his wife, Jane, and son, Ryan, Marcus Taylor is immersed in grief. But his family isn't the only thing he has lost. An addiction to painkillers has taken away his career as a paramedic. Working as a 911 operator is now the closest he gets to redemption—until he gets a call from a woman trapped in a car. Rebecca Kingston yearns for a quiet weekend getaway, so she can think about her impending divorce from her abusive husband. When a mysterious truck runs her off the road, she is pinned behind the steering wheel, unable to help her two children in the back seat. Her only lifeline is a cell phone with a quickly depleting battery and a stranger's calm voice on the other end telling her everything will be all right. *SUBMERGED has a unique tie-in to Tardif`s international bestseller, CHILDREN OF THE FOG. Editorial Reviews: "From the first page, you know you are in the hands of a seasoned and expert storyteller who is going to keep you up at night turning the pages. Tardif knows her stuff. There's a reason she sells like wildfire—her words burn up the pages. A wonderful, scary, heart-pumping writer." —M.J. Rose, international bestselling author of Seduction "Tardif once again delivers a suspenseful supernatural masterpiece." —Scott Nicholson, international bestselling author of The Home "From the first page, Cheryl Kaye Tardif takes you hostage with Submerged—a compelling tale of anguish and redemption." —Rick Mofina, bestselling author of Into the Dark "Cheryl Kaye Tardif's latest novel SUBMERGED will leave you as haunted as its characters." —Joshua Corin, bestselling author of Before Cain Strikes "Submerged will leave you breathless—an edge of your seat, supernatural thrill ride." —Jeff Bennington, bestselling author of Twisted Vengeance
Publisher: Imajin Books
ISBN: 1772233870
Category : Fiction
Languages : en
Pages : 347
Book Description
From the international bestselling author that brought you CHILDREN OF THE FOG comes a terrifying new thriller that will leave you breathless… "Submerged reads like an approaching storm, full of darkness, dread and electricity. Prepare for your skin to crawl." —Andrew Gross, New York Times bestselling author of 15 Seconds Two strangers submerged in guilt, brought together by fate… After a tragic car accident claims the lives of his wife, Jane, and son, Ryan, Marcus Taylor is immersed in grief. But his family isn't the only thing he has lost. An addiction to painkillers has taken away his career as a paramedic. Working as a 911 operator is now the closest he gets to redemption—until he gets a call from a woman trapped in a car. Rebecca Kingston yearns for a quiet weekend getaway, so she can think about her impending divorce from her abusive husband. When a mysterious truck runs her off the road, she is pinned behind the steering wheel, unable to help her two children in the back seat. Her only lifeline is a cell phone with a quickly depleting battery and a stranger's calm voice on the other end telling her everything will be all right. *SUBMERGED has a unique tie-in to Tardif`s international bestseller, CHILDREN OF THE FOG. Editorial Reviews: "From the first page, you know you are in the hands of a seasoned and expert storyteller who is going to keep you up at night turning the pages. Tardif knows her stuff. There's a reason she sells like wildfire—her words burn up the pages. A wonderful, scary, heart-pumping writer." —M.J. Rose, international bestselling author of Seduction "Tardif once again delivers a suspenseful supernatural masterpiece." —Scott Nicholson, international bestselling author of The Home "From the first page, Cheryl Kaye Tardif takes you hostage with Submerged—a compelling tale of anguish and redemption." —Rick Mofina, bestselling author of Into the Dark "Cheryl Kaye Tardif's latest novel SUBMERGED will leave you as haunted as its characters." —Joshua Corin, bestselling author of Before Cain Strikes "Submerged will leave you breathless—an edge of your seat, supernatural thrill ride." —Jeff Bennington, bestselling author of Twisted Vengeance
Site Formation Processes of Submerged Shipwrecks
Author: Matthew E. Keith
Publisher:
ISBN: 9780813061627
Category : Excavations (Archaeology)
Languages : en
Pages : 0
Book Description
Many factors influence the formation of shipwreck sites: the materials from which the ship was built, the underwater environment, and subsequent events such as human activity, storms, and chemical reactions. In this first volume to comprehensively catalogue the physical and cultural processes affecting submerged ships, Matthew Keith brings together experts in diverse fields such as geology, soil and wood chemistry, micro- and marine biology, and sediment dynamics. The case studies identify and examine the natural and anthropogenic processes--corrosion and degradation on one hand, fishing and trawling on the other--that contribute to the present condition of shipwreck sites. The contributors also discuss how these varied and often overlapping events influence the archaeological record. Offering an in-depth analysis of emerging technologies and methods-acoustic positioning, computer modeling, and site reconstruction--this is an essential study for the research and preservation of submerged heritage sites.
Publisher:
ISBN: 9780813061627
Category : Excavations (Archaeology)
Languages : en
Pages : 0
Book Description
Many factors influence the formation of shipwreck sites: the materials from which the ship was built, the underwater environment, and subsequent events such as human activity, storms, and chemical reactions. In this first volume to comprehensively catalogue the physical and cultural processes affecting submerged ships, Matthew Keith brings together experts in diverse fields such as geology, soil and wood chemistry, micro- and marine biology, and sediment dynamics. The case studies identify and examine the natural and anthropogenic processes--corrosion and degradation on one hand, fishing and trawling on the other--that contribute to the present condition of shipwreck sites. The contributors also discuss how these varied and often overlapping events influence the archaeological record. Offering an in-depth analysis of emerging technologies and methods-acoustic positioning, computer modeling, and site reconstruction--this is an essential study for the research and preservation of submerged heritage sites.