Tag Archives: oceans

Mapping Populations in the Open Seas

Eric Carle commemorated the tragic story of the 1992 loss at sea of some 28,800 rubber ducks from a container ship in Day-Glo colors in “Ten Rubber Ducks Overboard.”   But rather than encountering multiple marine creatures in their adventures, the orange rubber children’s bath toys were in fact carried on quite circuitous routes of nautical travel:   after leaving Hong Kong, individual ducks migrated over fifteen years along ocean currents across the polar regions to as far West as the islands of the Hebrides and eastern France, or as far South as Peru’s coast.

 

Rubber Duckies

 

We don’t know the exact numbers, but at least several seem to have avoided, happily, the treacherous waters of the Northern Pacific Gyre of the Great Pacific Garbage Patch–which sadly remains the unfortunate fate of so much plastic substances and waste–where a large portion no doubt lie.

 

North_Pacific_Gyre_World_Map

 

Carle took poetic license to reduce the ducks to ten in his 2005 board book, leading them to meet  seagull, geese and whales on their picturesque voyages in the seas.

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Whereas Carle offers readers a narrative of charting how the plastic bathtub toys encountered a live flamingo, pelican, sea turtle, seagull, whale and, of course, a group of live ducks, recent maps of ocean populations portray a population that churn beneath one’s feet so rapidly as to challenges a static mapping of the range of its inhabitants–and the changing nature of its populations of the waters, in a range of maps that leave behind the inhabited earth to foreground shifts in the inhabitation of the seas.

Digitized projections narrate the currents of marine biodynamics narrative in a far more three-dimensional fashion than the voyage that Carle charts in charming tissue collage.  Digitized projections of the shifts of ocean use similarly bright colors to visualize the shifts in oceanic populations tied both to global warming and atmospheric pollutants.  They offer dynamic tools to re-imagine the uses of maps, providing a less prosaic narrative of marine residents that the ducks encountered, and give new urgency to the informational (and narrative) content of oceanographic maps–even as they tracked a similar narrative of the scariness of the interaction between the “natural” and man-made.

 

Carle's Ten Ducks

 

The dynamic mapping of oceanic populations suggests ways of responding to the shifting climates of oceans–rooted less as bucolic preserves of nature or wildlife, than as spaces actively reshaped by the human presence and industries.

The visualizing the increasing ‘jellification’ of oceans, created by both global warning and the effects of modern industry, has gained increasing attention as the increasingly abundant populations of jellyfish  floating along the currents of ocean waters have begun to be mapped, and the permanence of their presence in the oceans begun to be assessed.  The overcrowding of jellyfish in the ocean waters have led oceanographers to worry about the impending ‘jellification’ of the seas that would only spare the Peruvian coasts, and a veritable swarming of jellyfish not only in China, where they might be eaten, the northeast waters of America, the Mediterranean, and Alaska but around the Antarctic:

 

Jellification

 

The wide blooms of the jellies bode not only bad news for swimmers’ jellyfish injuries, and led to record numbers of those treated for stings–in Barcelona, upwards of 400/day–but to fishing economies, as the proliferation of the stinging blobs that can cope with increased pollution, murky waters and algae blooms more than other ocean inhabitants, and threaten the food supplies of fish in overfished waters, by competing for zooplankton, as well as nets of fishermen.  They flock in large numbers to polluted waters  and overdeveloped shorelines with specific intensity.

Among the prime beneficiaries of global warming, jellyfish blooms lead to the release of toxins to oceanic areas and enclosures of farmed fish, jellyfish invasions are described by oceanographer Josep Maria Gili as a simple message of the oceans to mankind: “Your are destroying me.”  Driven by currents and carried in the ballast water of tankers and container ships, jellyfish not only displace local populations, but face reduced predators, including, potentially, the monster jellyfish Nemopilema nomurai, with its six-foot bell diameter.

 

JAPAN-JENVIRONMENT-CLIMATE-JELLYFISH

 

Despite considerable worries that there is actually more plastic than plankton in the ocean, suggesting less mutually convivial relations between synthetic objects and marine life than Eric Carle would have:  indeed, oceanic gyres where plastic products tend to be trapped–and some of the ducks no doubt resulted–swirling around in a region twice the size of the state of Texas, that might in time form a destination of disaster-tourism of its own.  In the gyre, plastic refuse often outnumbers marine plankton by an astounding and terrifying factor of six to one.

 

gyres

 

As much as mapping the distribution of plastics in the ocean, ‘mapping’ plankton populations provides a snapshot of varied distributions of these microscopic inhabitants of the ocean’s expanse.  The mapping of the larger plankton populations congregated on the poles, and pteropods in the most crowded seas–as well as huge “dead zones” where oceanic plankton recedes–in a complex mosaic of local ecosystems, evident in the computer-generated MAREDAT distribution of photosynthetic plankton, and showing the abundance of zooplankton, that do not use photosynthesis, in comparison to photosynthesizing phytoplankton, and a range of plankton varieties:

 

zooplankton

A smaller-grained image of a phytoplankton distribution creates a wonderfully iridescent map of plankton’s oceanic presence in this global distribution of chlorophyll producers–until one can read its legend, or grasp the low levels of populations in areas of the deepest blues, near to the equator.

 

phytoplankton-concentrations1-1

Fig14_83

 

This spectral map of plankton distributions conceals the  shifts with seasonal variation, but one can see in these images of plankton populations (based on data generated by NASA’s MODIS instrument) that the distribution of these mostly oxygen-producing microorganisms has higher presence in colder climes, removed from most human effects, where their higher quantities are registered as yellow–in contrast to the absence of dark blues.   (The entire plankton atlas database is available online.)  The shifts of phytoplankton is marked by a seasonal ebb and flow, however, almost echoing a tidal chart, whose annual flux is tracked in speeded-up time in this digitized “map” based on satellite registrations, in this holistic time-stop graphic of the oceans’ smallest inhabitants.

 

plankton-gifNASA/Goddard

The above visualization echoes the distribution of sea-surface chlorophyll, now averaged out from between 1998 and 2006, to reveal the rise of large “dead-zones” poor in plankton in the oceans, which bode poorly for waters furthest from land:


sea surface chlorophyll

 

Regionally, plankton favor colder waters, but its growth is stimulated and nourished, as this map of levels of chlorophyl worldwide in  September, 1988, which shows the autumn northern sun nourishing a band of chlorophyl plankton, when southern seas are just begun to bloom:

 

chlorow2NASA

The result is a visualization in which, even in a flat projection, one can see land and earth alike teeming with life, as a SeaWiFS instrument scans the world’s oceans for phytoplankton even as it scans the earth’s surface to look for plant life, by measuring the global circulation of carbon in order to track photosynthesis on land and sea like:

 

NAS MAPS PLANKTONNASA Scientific Visualization Studio (2001)–SeaWiFS (Stuart A. Snodgrass)

In this synthetic global view, the dark blue areas of low plankton are similar to the aridity of orange deserts, which also provide no chlorophyll–or oxygen–to the atmosphere.

Somewhat similar seasonal variations are nicely revealed in relatively recent visualizations charting their monthly distributions in the Mediterranean, whose warmer waters of the summer (from May to October) especially diminished the plankton populations in its southern edge, closer to the equator, when the north African coast seems to lose its populations, only to be replenished by January, in a set of images that reveal the variability and resilience of local populations:

 

chlorophyll med

 

The increased limits of oceanic zooplankton suggests the shifting nature of the oceans, and their close relationship to our atmosphere.

 

Zooplankton

 

 

But it does not measure their variability–or the specificity of distinct plankton populations that far off waters and streams hold, and their lack of discrimination weakens the effective understandings of oceanic biodiversity they communicate.  New tools for visualizing these unseen micro-populations that generate so much oxygen on our planet were developed to visualize specific plankton distributions, first prepared for San Francisco’s Exploratorium, based on plankton variety, producing a map of greater discriminating power.  The user-friendly map “Living Liquids” was planned by Jennifer Frazier with a computer scientist and help from the MIT’s Darwin Project and the Center for Visualization Interface and Design Group at UC Davis, to create a map of plankton distributions that visitors to the Exploratorium could explore.  Living Liquids began from a fluid base-map of varied regional phytoplankton distributions that focussed viewers’ attention on the oceans as a site of rich chromatic and ecological variations, without discriminating between them, to encourage exploration:

 

Plankton Visualization

Plankton Legend

The images of such large expanses of declining populations of plankton paint an unpretty picture of our oceans, that parallels the fear of jellification of ocean seas, but also allows us to “see” a richly variegated image of where plankton live–and what type of plankton live where–that provide a clearer holistic image of oceanic populations, using an interactive touch-screen to zoom in on close ups to reveal and explore qualitative diversity within the distribution of local plankton populations with more immediacy than a four- or five-color map allows, creating an illusion of being able to scoop up a handful of water at any place and view it under a microscope, switching registers of visual investigation and exploration.

Plankton View 4

Plankton Viewer 8

Plankton Viewer 6

The complex visualization of the nature of micropopulations is dramatically distinct from a static map; its actively  readable surface is a tool of independent investigation in itself.

Local maps of ocean populations also provide crucial tools to frame an exploration of causes for the local variability in such microscopic micro-organisms that examine the specific impact of local industrial change on the living landscape of the sea.  If not three-dimensional, such maps chart a nuanced picture of the biodynamics of marine diversity than the static maps of marine life, and powerful tools to register shifting temporal distributions and densities in the boundaries of specific oceanic populations.

To select but one example of oceanic maps of the impact of human life on biodiversity, let’s start from the dangerously low oxygen levels in the Gulf of Mexico–caused in part by marine pollution.  The massive changes in the Gulf’s waters afflict both deep sea populations and phytoplankton alike, has created a “dead zone” of diminished distributions that by 2009 increased worries that pollution–largely caused by fertilizer run-off that augments the presence of nitrogen in the waters and create algae blossoms–and may eventually lead to a local ecosystem collapse.  (The so-called “dead zone” came to occupy an area larger than the state of New Jersey, before ocean currents changed its shape.)  Similar “dead zones” threaten to expand near the habited shore world-wide, increased by global warming.

deadzone2

 

Yet concerns for the growth of oxygen-deprived regions worldwide, paralleling oceanic jellification, create conditions for the abandonment of waters by fish and shrimp alike in “hypoxic” regions, whose number has doubled every ten years since the 1960s, with huge economic consequences for regions as the Gulf of Mexico, whose hypoxic conditions are colorfully mapped by red below during the previous year:

 

gulfofmexico

 

Which brings us back, almost full-circle, to the rise of global populations of jellyfish, and maps onto a change in the population of the open seas.

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Filed under chlorophyl plankton blooms, hypoxic regions, Interactive Maps, jellification, Living Liquids, mapping hypoxic regions, mapping jelly fish, mapping sea surface populations, marine biodynamics, Marine mapping, oceans, oxygen-deprivation, phytoplankton, plankton maps, rubber ducks

Map-Inspired Madness: Mapping the Great White in the Solitude of Ahab's Cabin

The narrated search for the whale Moby Dick takes readers almost vertiginously off the known map, in an era of increased map-printing and the growing claims of map authorship, often insecure of the origins or coherence of their captain’s narrative design.  The quest for the elusive Great White takes readers literally off the map, as The Pequod leads readers off of map, in the  apparently unreliable narrative on a quest for Moby-Dick to areas less mapped as the almost  primal site of whale spawning, unknown to most, where the craft, itself adorned with whale bones—“tricking herself forth in the bones of her natural enemies,” bulwarks adorned with sperm whale teeth, rudder made from a whale jaw bone, seems to seek to arrive by human artifice, or be all too similarly cannibalized by its craft.

‘It is not down in any map; true places never are,’ Ishmael describes the mysterious origins of the real cannibal Queequeg in Moby Dick, who he calls “George Washington cannibalisticslly developed.   Queequeg hails from the South Seas, and his unknown origins betrays the fascination of unmapped spaces and the allure held by being “off” the map.  The concern with mapping places haunting the narrator of the novel obsesses the monomaniacal ship’s captain who leads his ship to the same area of the globe in search of the lone whale he seeks to lead an increasingly wary crew.  Melville wrote with a particular sense of spatiousness in a chapter that first tells the story of the Great White Whale–“Moby-Dick” (Chapter XLI)–poses the question of preserving collective knowledge to gain bearings on the location of the White Whale, that suggests the onset of the first mapped knowledge of whale routes.  If providing pictures of  the specter of the whale from from the point of view of the whale-man, the encounter of ships at sea at the start of the hundredth chapter betrays a  desperation to orient his ship on the high seas.

At the start of the hundredth chapter of the massive narrative, an obsessive Ahab cries hopefully to crews of a passing English ship monomaniacally—“Ahoy!   Hast thou seen the Great White?”   Ahab cries in biblical syntax in desperation to the approaching English ship’s captain and crew, showing his ivory leg to the ship whose captain barely seems to understand him, but improbably turns out to be his twin, having lost an arm last year to the very same white whale:  in a macabre recognition scene, the ships joined the two disfigured by the same whale clink ivory limbs, arm and leg, bound by both how their lives found new orientation after their encounters with the great white whale.  Ahab has prepared to track the whale’s course.    

While legends of sightings are dispersed among whaling ships “sprinkled over the entire watery circumference” in disorderly fashion, each “pushing their quest along solitary latitudes,” sharing knowledge about whales’ locations was prevented given the “inordinate length of each separate voyage” and “long obstructed the spread through the whole world-wide whaling fleet of the special individualizing tidings concerning Moby Dick.”  The sightings of sperm whales of uncommon magnitude provoked rumors and fears of encounters with the whale, as one might expect, even if they were recored at a fixed time or meridian.  For, Melville reminds us again of the unique space of the open seas, “in maritime life, far more than that of terra firma wild rumors abound, wherever there is any adequate reality for them to cling to;” in the “remotest waters” or “widest watery spaces,” whalemen are subject to “influences all tending to make his fancy pregnant with many a mighty birth.”  

Such an expansion of legends of the White Whale on the open seas contrast to the single-minded focus of Ahab’s tracking of Moby Dick, and the certainty that the Captain possesses of his ability to find Moby Dick on the open seas .  Such a fixation is opaque at the book’s start, but is perhaps most manifest in his obsessive desire to track the individual whale by the sea charts kept in his cabin, to which he retires to read each night, and seem to provide the first point of entrance into his psyche–and what Melville calls his “monomania.”  As the ship moves over the seas, Ahab returns often to his cabin to read charts, maps, and logs, as map-reading becomes a keen emblem of monomaniacal fixation–as the belief that maps will help him track the whale that he is committed to kill.  The maps may magnify the sense of monomania, the psychological diagnosis of an undue expansion of mental attention on one object; if repeated reading the maps serves as an emblem of the growth of his fixation despite the survival of his intellect; trying to pursue the whale on charts seems to serve to focus his vindictiveness, as if materializing how the “White Whale swam before him as the monomaniac incarnation of all this malicious agencies which some deep men feel eating at them, till they are left living with half a heart and half a lung.”  Ahab’s fixation on the yellowed charts he unrolled on his cabin table express the monomaniacal tendencies defined in nineteenth century psychiatry of how an inordinate fixation persists in an otherwise rational mind; the fixation on mapping the course of the whale obsesses his attentive mind.  

Is the hope of locating the White Whale by the rutters of past whaling ships and collation of mapped observations an emblem of nourishing an undue fixation of his pathological preoccupation, despite his apparent ability to reason the possible path of the whale’s path?  The extended narrative of the ongoing quest for Moby Dick on which Ahab leads Pequod that fills the content of the novel becomes a sort of psychic profile of the obsessiveness with which Ahab takes the Pequod, and the novel’s narrator Ishmael, to encounter Moby Dick in the South Seas–the site of whale -spawning where the novel culminates.  The retiring of Ahab to the solitude of his cabin matches his withdrawal into his mind and serves to nurse his preoccupations.  What provides a more gripping image of Ahab’s inner psyche than the obsessive attention that he gives to tracking the White Whale by maps?   Ahab retires to consult log-books and charts to cull sightings of sperm whales that almost substitute for an actual map or rutter–and for the trust that sailors might place in maps and charts to guide the ship.  The problem of locating the whale s underscored by mention of the “wild suggestions” of many ships that have given the whale chase of an “unearthly conceit that “Moby Dick was ubiquitous; . . .  had actually been encountered in opposite latitudes at one and the same instant of time;” if”the secrets of the currents in the seas have never yet been divulged, even to the most erudite research,” Ahab seeks to challenge this sense of ubiquity through his obsessive consultation of charts, by following of the outlines of naval courses.  His intensity comes to transform his very brown and visage into a lined map, tracing out courses, so that his forehead comes to resemble a chart; reading maps with such obsessiveness to track his prey seems to remove Ahab’s single-minded pursuit from any oceanic transit, and from the common good of the ship that he commands.

Ahab’s monomania may seem sui generis.  But it is closely tied to the mapping project of Mathew Fontaine Maury and the contemporary project of collating open data on whale migration in Melville’s time, and the promise of investing legibility in a global space of whale migration.  Even more than the bodily injury of the loss of his leg that left him tormented with visions of the White Whale, the obsessive tracking and persistent consultation of charts and maps with other records manifests the idée fixe by which Captain Ahab is obsessed, and indeed the solitary consultation of these charts while his crew sleeps at night stand for the single-minded madness of tracking one whale on the open seas.  The folly of tracking the White Whale on a map embodies Ahab’s monomaniacal pursuit of a way to track its course by a paper map.   So fully does map-reading come to consume both his mind and his body as he ponders charts every night in his cabin, drawing new lines and courses by pencil, and revising them, “threading a maze of currents and eddies, with a veiew to the more certain accomplishment of that monomaniac though of his soul, so focussed on a map that, in a brilliant image, his tormented face even becomes a map, bearing the traces of the pencil lines traced on the charts, as if the subject of his fixation rises to the surface of his skin, so entirely consumed his mind by the conceit of mapping the course of Moby Dick.  The appearance of these self-inflicted lines as if engraved on Ahab’s brow–Melville’s image–echo the captain’s fixation with obsessively tracing multiple marine courses on the charts he keeps in his cabin; the courses that are so intensely pondered seem to rise to lines inscribed on his own skin as if in as a consequence of the imprint that tracing possible courses  of the leviathan has brought.  

The conceit of the tracking of whales on maps appears an emblem of Ahab’s madness, if it almost echoes contemporary techniques of Global Positioning Systems.  The utter hopelessness of locating one whale in an ocean map seems apparent; Ahab has indeed so often red maps to transform himself into a map hoping to locate Moby Dick, and the conceit of mapping whales has filled his mind.  Yet, as the “hidden ways of the Sperm Whale when beneath the surface remain, in great part, unaccountable to his pursuers, . . . the most curious and contradictory speculations regarding them, especially concerning [how] he transports himself with such vast swiftness to the most widely distant points”    Melville presents the problem of mapping the course of whales as one by which the crazed Captain Ahab is increasingly consumed, pouring over charts in the captain’s cabin, increasingly isolated at a remove from the crew including Queequeg and Ishmael, and the fate of his ship.  Although whalemen by their expert knowledge often came to the conclusion after the White Whale so often escaped their capture “Moby Dick not only ubiquitous, but immortal,” the presumption of mapping the course of the White Whale’s course is perhaps the clearest illustration and emblem of Ahab’s hubris, and monomaniac obsession with tracking the whale above the expert knowledge of his crew, as he “led upon the whale’s white hump as the sum of all the general rage and hate felt by his whole race,” so violently did he come to see personified in the whale that had once torn off his leg all evil in the world, and pit himself against it.  Maps provide Ahab with a basis to nourish and expand the “monomania  in him [that] took its instant rise at the precise time of his bodily dismemberment.”  If such a mania began he returned home, stretched in a hammock on his homeward voyage, swaying in a straitjacket in the rocking boat returning across the tranquil tropics, as “his special lunacy having stormed his general sanity,” he obsessed after returning to Nantucket with the one aim of hunting the White Whale.  Monomania had almost fallen out of favor as a diagnosis by 1850, when Melville wrote, but novelists from Balzac to Bronte adopted the image of mental fixation and unhinged rationality that Ahab’s reading of maps convey.  

Nothing in Mellville’s novel is so great an emblem indicating Captain Ahab’s madness than his obsessive consultation of nautical charts and maps of which he is a jealous custodian, and which provide the basis to nourish his determination to locate Moby Dick.  Maps may feed Ahab’s relentless compulsion to track the White Whale.  Ahab’s obsession with maps reflects contemporary attempts to map the open seas:  indeed, the superstitious value of the leviathan held a special place in the “wild, strange tales of Southern whaling,” and the deep sympathy of whaling men for their prey, who they know far better than those naturalists who have perpetuated false legends of their fierce animosity for humans, from Palsson to Cuvier, distorting the actual awesomenes of pursuing any whale tracking the Great White.  

Ahab’s obsessive reading of maps to track Moby Dick seems a figure for his monomania, but reflects an actual mapping project tracking whales on the open seas, which Melville knew well, and a project of mapping the logs of whaling ships in legible cartographic form.  Ahab’s use of maps to track Moby Dick mirrors the cartographical project of Matthew Fontaine Maury, the nineteenth-century Virginian polymath and early hero of open data, who in 1851 sought to map migratory routes of Sperm and Right whales or the benefit of the whaling economy.   If Melville often consulted histories of arctic searches for Northern Whales published from the 1820s, the appearance of an authoritative map of the courses of whales that Maury had accumulated from ships’ logs provided a model that attempted to impose human reason and fixed continuity on a whale’s migrating itineraries and paths, in order best to predict its actual location.

Ahab’s obsessive hope to track the course of the great white whale Moby Dick in the ship the Pequod may mirror the scope and ambition of M.F. Maury’s project–a project that led to one of the odder maps of marine population and migration that appears below, but which is one of the monuments of open data.   For Melville, however, Ahab’s mania seems driven by the hope the map carried for being  able to track  the course of the great white whale that his prey, and to arrive at the moment of confrontation that will in fact never appear on any map.  For unlike the observations Maury graphically collated, the specificity of Ahab’s tie to Moby Dick is not on the map at all.

Whale Chart 1851Maury’s Whaling Map; Norman B. Leventhal Map Center at the Boston Public Library

Ahab’s self-imposed sequestering on the voyage of the Pequod in his cabin, surrounded by a variety of charts, seems emblematic of his single-minded obsession to track the elusive Moby Dick.  It is emblematic of a uniquely obsessive sort of map-reading emblematic of his particular sort of hubris:  as he will never know the true path of the majestic whale, his study of the map symbolizes a contest between the mapping abilities of man and whale.

The private consultation of the map in the the secret space of the captain’s cabin reveals the sharp contrast between the whale as an innate cartographer who migrated across seas and the knowledge of routes inscribed in lifeless nautical charts, and the inability to plot or plan the intense longing for his confrontation with Moby Dick within the range of observations of all whales by traveling whale ships.  But it also offers an amazing fantasia of the reading maps and nautical maps as if they were guides to habitation, and a reflection on the nature of map-reading and the comprehensive claims of encompassing known space within engraved maps, and specifically of the colored charts of sea routes, whaling and sighted whales that the oceanographer Matthew Fontaine Maury produced in the 1850s compiling nautical logs of whaling ships, after having remapped the coastline of the United States from the geodetic Survey of the Coast by the Swiss Ferdnand Hassler, which had tried to fulfill the Jeffersonian dream of a nation facing two oceans, before joining the Confederate cause.

image.png .

We have little sense of the amassing of data that existed in Ahab’s cabin, so much as the intense relation that the captain develops to his charts.  Melville describes how Ahab retires to his cabin to open “large wrinkled roll of yellowish sea charts, spread them before him on his screwed-down table,” ready to set himself to “intently study the various lines and shadings which there met his eye,” and escape into the paths that they trace.  The memorable episode in Ahab’s own cabin focusses attention on how the captain’s obsessive consultation of the maps, as a sort of emblem of his search to capture the whale in them.   Ahab processed information in the map as best he could, and “with slow but steady pencil trace additional courses over spaces that before were blank,” while consulting log-books of previous voyages and noted sightings of sperm whales in a desperate attempt to locate the migratory path of the white sperm whale Moby Dick–whose own route he so obsessively seeks to understand and on which he fixates so obstinately. The reading activity is isolated and isolation, because the map is essentially mute, a second order of spatial knowledge with which he has no literal traffic or exchange, but becomes a way to wrap himself in further isolation from the mammal that communes with the productive fecund waters of the sea.  “While he himself was marking outlines and courses on the wrinkled charts, some invisible pencil was also tracing lines and courses upon the deeply marked chart of his forehead,” as every night, “in the solitude of his cabin, Ahab thus pondered over his charts, . . . threading a maze of currents and eddys, with a view to the more certain accomplishment of that monomaniac thought of his soul.”

Such a collective map of the sightings of whales is both the focus and talisman of Ahab’s monomaniacal will:  both as the transcription of the paths of hidden submarine itineraries, “with the charts of all four oceans before him,” and the hubris of understanding the concealed migratory course of that noble whale with which he is so obsessed and that has long evaded his search.  For Melville confides that “it might seem an absurdly hopeless task thus to seek out one solitary creature in the unhooped oceans of this planet” to many; “But not so did it seem to Ahab, who knew the set of all tides and currents; thereby calculating the driftings of the sperm whale’s food, which whales were imagined to follow; and, also, calling to mind the regular, ascertained seasons for hunting him in particular latitudes; could arrive at reasonable surmises, almost approaching to certainties, concerning the timeliest day to be upon this or that ground in search of his prey.”  The privacy of the consultation of the tables that allow him to try to read this map, and to establish the position of the whale he seeks, becomes the basis for the captain’s obsessive hope to track the progress of the whale, better to interpret its location.

The intensive reading of ocean charts becomes a site of reading that obsesses Ahab as a means to determine and decipher the logic of its movement stand at odds with the description of the sublime nature of the sperm whale, whose own head cannot even be read without wondering at the majesty of the form of the “head of this Leviathan,” truly “an anomalous creature,” impossible to interpret or decipher, whose imposing grandeur is of such “god-like dignity” to defy human interpretation.  As the wonderfully described problem of the legibility of the “plaited forehead” of the Sperm Whale is a living surface that defies interpretation, inscribed with “innumerable strange devices for [its] emblematical adornment,” following not Euclidean mathematics, but rather “pure nautical mathematics,” the mapping of the course of the whale seems to defy tracking by Euclidean tools also defies reading, much as Melville described the sperm whale’s forehead forms a “mystically carved container,” the lines of whose face defy clear reading, as the “bumps on the head of this Leviathan” is a surface whose interpretation “no Physiognomist or Phrenologist has as yet undertaken,” and would challenge the abilities of Lavater–despite his study of animal faces–or Spurzheim or Gall, suggesting the intractable indecipherability of the whale, but whose “sublime aspect” and “added grandeur” Melville attempted, in the brow in which “mighty god-like dignity” is indeed “inherent” in a brow “plaited with riddles,” presenting Lavater’s mark of genius in the depressed crescent at its middle, in a brow “so amplified . . . you feel the Deity and the dread powers more forcefully than in any other object in living nature.”

As the brow of the leviathan remains challenging to be read, any hope of reading the map of the path it takes seems, despite Ahab’s desire and Maury’s map, Melville appears to assure his readers, as futile as a way locating the actual whale Moby Dick, but becomes an obsessing act of tracing, retracing, and location, that becomes Ahab’s main interpretive project in Melville’s book.

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Filed under American literature, data visualization, Herman Melville, Moby Dick, open data