Tag Archives: weather maps

Mapping a Century of Rising Heat

RISING Temperatur esNew York Times

The color-saturated mapping of regional changes in temperature across the contiguous United States provided a commanding visual for the front page of the New York Times of May 6 to capture changes in the US climate:  placed on  conspicuously above the fold and standing alone, just below the headlines, the graphic served multiple functions in a strikingly effective way.  The weather map that was first released by the Obama White House elegantly and effectively served–in ways that words could not–to combine several narratives of climate change that synthesized  the findings of a recent committee of scientists on the wide-ranging effects of global warming.  This is an unprecedented victory of the map, the most effective single tool to describe the complex process of a veritable cascade of environmental shifts, by selectively focussing on a known variable of local warmth.   The orange and bright reds of the map arrest the eye in ways an article or headline could not, and effectively provoke a cascading set of side-effects and reactions to occur in readers’ minds that served to grasp the finality of warming’s consequences.  As one mind quickly moves off the map of stark changes of temperature to the effects of future droughts and increased aridity of soil, consequent crop-shortages, and subsiding ground-levels, imagining the marked depletion of cool air, streams and rivers that would dry, and an increasing dependence on energy to create artificially cool environments. 

Although it is static, the historical map suggests a spectral future forecast for the nation that dramatically moved from back pages to headline news.  It mirrored a roll-out of the announcement as part of a dialogue with weathercasters on television news programs in a gambit to engage the public in the question of climate change.  Indeed, the graphic mimicked the presentation of weather maps on TV, images of the national forecast that the Weather Channel has made all too familiar.  Even if the map documents changes of the previous century, it shares the iconic status of the sort of severe weather forecast that The Weather Channel has accustomed us to interpret and to see.  We’re now trained so often to interpret and to read similarly colorized  climatological forecasts to trace regional emergencies that the Times‘ map seemed to recuperate these conventions to make a polemic point not so much about the past–“US Climate Has Already Changed”–but about the possible futures that the map forebode.  For weather maps offer the most acceptable medium of future predictions, where they have currency as credible tools for short-term forecasting.

Thuderstorm Forecast

The range of information in the map that summarized a century of rapidly shifting local climate temperatures How could such a gamut of consequences be convincingly understood or presented other than in a map?  The visual immediately triggered multiple questions of effects on species, forests, farmlands, new sorts of vegetation, and shifting insect populations described in the article, which a reader some decades ago would be challenged to link.   The effectiveness with which the map implicitly summarized the ramifications of these potential changes, or provoked its readers to react to its orange and read heat-distributions, presented an ominous vision of the future, as well as the historical past of a century of warming weather that the headline announced.  As if with the ominous fatality with which science fiction authors like Arthur C. Clarke described the future of a world battered by asteroids, the map opened up a view on the consequences of environmental change in a future world, even if its headline announced an event firmly rooted in the past century, synthesizing as it did the findings of two periods in the past hundred years.

The finality with which the map released by John P. Holdren documented a change that had already occurred across the nation’s regions, but made it to every weather bureau and station across the country, as if to maximize the newfound familiarity of audiences to engage meteorological maps as a way of making its own polemic (and of course partly political) point of how drastically rising temperatures stand to redraw the familiarity of the world.  Extending far beyond earlier warnings  voiced by the UN, or the pronouncements of an Inter-Governmental Panel on Climate Change whose  report documented the melting of the ice-caps and collapse of sea ice in the arctic, the migration of many fish out of their habitats, and impending dangers of rising seas.  Perhaps these global images were too remote, or difficult to visualize.  The powerful invocation of the weathercaster seemed to give greater reality to the scary prognostic in the contiguous United States, and concretized the multiple threats of climate change in an image that confirms the changing nature of the ground beneath our feet.  Some may criticize the focus on the United States alone in an interconnected world, as if the isolation of our country’s climate somehow removed it from a global problem and dilemma, or placed undue emphasis on the effects of emissions on the climate in the US.  But the image of actual experiences spurs a call for reaction and response, and, in an echo of the tactics of the Obama administration, reveals the increased “cartographical literacy” in the reading and interpreting forecasts in persuasive national weather maps.  

Forecast and Warming

The emulation of the televised weather forecast is no doubt what makes the map appear so immediately effective.

The map of the entire country was in ways a counterpart to the images of November 2012, around the time of Hurricane Sandy, simply titled “What Could Disappear,” which asked viewers to imaging the shifting coastlines of rising seas, and pictured the coasts that rising ocean waters could redefine, submerging beneath the sea low-lying areas of what we consider habitable land–as well as flooding all of Galveston, TX and some 45% of Long Beach.


What Could be Lost The New York Times

But rather than engage with complex claims of climatological futurology, the front-page graphic was both at the same time historical in perspective and even more apocalyptic.  In announcing or intoning “US Climate Has Already Changed,” it reminded us of the consequences of rising temperatures at a historical remove that was still part of our present and an uneasy glimpse to the future we have mad, using tense whose finality foreclosed debate in quite incontrovertible ways.  The map’s comparison of temperatures over a century effectively resolved debates, separating the actual consequences of climate change on a familiar environment from debate about its mechanism and reminding us of its man-made origin, and untangling the dangers of the changes that it wrought from the cascading (if terrifying) mechanism of ocean levels rising, habitats altering, fish migrating, the extinction of species, and deaths of coral reefs.  The map was able to link itself to a multiplicity of lived experiences and actual fact, and conjure a scarier–precisely since undefined–picture of what was to come–an era of increasing heat.  (Its associations might almost be as apocalyptic as the hallucinatory surreal  dream from a 1959 episode from Rod Serling’s The Twilight Zone, “The Midnight Sun,” in which the earth exits its elliptical orbit and moves toward the sun, warming the nation so much as to induce crazed radio weathercasters to stray incoherently off script and panicked Americans to flee abandoned cities en masse to Canada in search of cooler climes.)

The particularly powerful graphic of the map of regional variations in rising temperatures was quite devastating in its depiction of how–despite some regional differences–none save rare pockets of settled land experienced anything approaching a decline in reported weather temperatures.  For those that did, mostly concentrated in the lower Mississippi basin, they experienced quite slight declines:  it presented an image of a continent on fire, almost about to be consumed by flames, burning from its edges, if, the accompanying article noted, increasingly soaked by torrential rains.

RISING TemperaturesThe New York Times

The  growth of areas already warmer on an average of some two degrees suggested an encroaching of scarlet red blotches across the land from all sides, particularly in southern California and Arizona, Utah and New Mexico, the northern eastern seaboard, and the Great Lakes, with Bob Dylan’s native Hibbing seeing the greatest temperature change of over a massive three degrees.  The map powerfully synthesized the effects of human-induced climate change in ways that are not only impossible to rebut, using findings of a national  committee that has been in existence for over a decade–but was by far the most effective among the various interactive graphics it released.  The simple synthesis in a four-color map of the contiguous US immediately showed rising temperatures in some of the more inhabited areas of the nation, from New Mexico to Southern California, to the New York-Washington corridor.

In selecting a map to represent the consequences of climate change that were detailed in the report, the images suggested less of an infographic than a sort of disease map of a climate that has gone off the tracks.  Even if it might be faulted from its insistence on removing the US from the world, and focussing on one place within a complex web, as well as flattening its findings in cartographical form, the image is powerfully links the land to a set of abstract changes we cannot fully comprehend, but whose effects we can perceive.  This is the stunning victory of the static map.


Filed under "Midnight Sun", Global Warming, Inter-Governmental Panel on Climate Change, John P. Holdren, Rod Serling, The Weather Channel, weather maps, weathercasting

Windswept Lands

The ready availability of huge datasets offers multiple formats for modeling an increasingly dynamic relation to space. Indeed, the processing of remotely sensed data allows for frighteningly rapid condensation and synthesis of what can be called information within a single map.  And the recent NOAA based on modeling weather conditions in a real-time wind map is particularly neat in how it invests the currents of air that swirl above land and sea with a hue of their own, as if to invest them with character as a subject of mapping and give them a new level of visibility.  Set against a night sky, where details such as topography or ocean currents are conspicuously silenced, the lines of winds appear in neon blue relief off the California coast, showing an elegance of serpentine motions are tracked with far more wonder than the static terrestrial map:


The flowing electric blue lines used to render wind move with a sleekness as if to promise immediate access to meteorological actuality that seem to blend the screen with current wind conditions, and provide that most fantastic of illusions of a map of the present-day that almost sends tingles up our neck in providing a map of events that seem actually to be transpiring.  The maps have in fact led reporters to gush thanks to the US government for its funding of the project with tax dollars, creating new conditions for the visibility of currents of air to which we are ineluctably drawn in an almost zen manner.  The GIF suggests a mapping that is based on looking at the overlooked, or rendering the smoothest of airborne sensations with cartographic legibility.  It echoes the recent ability to encode data from sensing stations in a transfixing image of swirling gusts that seems far more animated than the flat topographical base map that lies beneath.


The attraction of these maps is more visual, in fact, and somehow more seriously phenomenological, than having to do with geographical information, save as it suggests the increasingly fluid nature of all information flows.

The dynamic nature of wind maps renders an idealized perspective whose content asymptotically approaches a view that is almost entirely abstracted or removed from the inhabited world, based on the mathematical models for projecting and tracing the currents and intensity of wind over land:  indeed, in the marvelously idealized data-driven maps, wind currents create whirls of whorls over the lower forty-eight.  The website hint.fm uses real-time images of the inroads winds make across the territory of the United States, distinguishing gradations of gustiness by wisps of differing intensity to describe a space not only removed from the inhabited world, but whose elegant tracery enacts an aerial drama across in an artificially demarcated mapped space too vast to comprehend, but offers a sort of atmospheric ballet of the wind’s shifting directionality and intensity, as if traced by a multitude of individually situated geographically dispersed weather vanes oriented by the shifting winds across the lower forty eight.

Wind Map website image

If the image recalls something like a smoke-filled room, it is more of a wind-filled continent, where blowing winds cross borders, rivers, and plains in an image of the bounds of the contiguous forty-eight states.  The cartographers, or artists of technological visualization, Fernanda Viégas and Martin Wattenberg are dedicated to “work [that] explores the joys of revelation” and in converting local data to suggest natural currents that existed before highways carved the continent into itineraries–like the “blue roads” of rivers run across the land–but their constantly shifting trails mark a weirdly curved space in a situated perspective rarely able to have been captured before.  Even on a “mild day,” the winds give a sort of dramatic intensity to the organization of space oddly removed from the cartographer’s art, which is quite passive in the sense of offering a surface to be inscribed by the movement of the air, as wind curves around the nation’s great plains in currents of a recognizable patterns or flows that approximate stop-action photography.


Looping Denver

Sure, there are specific moments of meteorological intensity when winds line up in a recognizable pattern–a tornado or hurricane–in ways that define a geographic focus of interest or attention, as in the vortex of Hurricane Isaac as it approached New Orleans,


but all too often the dispersal of attention is the rule, as one watches the patterns that winds themselves generate.

This charting of currents is one of the most precious dreams of early map-makers:  to chart the very presence of winds across the land and sea, early symbolized by the rhumb lines that were so important for nautical navigation in early modern and medieval charts, where they communicated the basis of projecting travel across oceans otherwise rarely noted or known how to be represented in the surface of the map itself:  even the lines surfaces of the waves on which ships gently rock and sea monsters rear their heads is only a suggestion of the winds that run across their surface.

Olaus Magnus

The wind-map is abstracted from territoriality in a sense, as were the oceans:  its formal focus on the United States, derives from its synthesis of predictions of the National Digital Forecast DatabaseLaura Kurgan has suggested how much the big data of cartographical operations like Google Maps or Google Earth were not only enabled but indebted–and informed by–the declassification of satellite views during the Clinton administration, which created something of a boondoggle of available data for American mapping firms, if it also informed the very strategies of global surveillance that Google inherited:   the delicate wind-maps Viégas and Wattenberg conceived and coded suggest less of a governed land than a territory inhabited by air, in which the unfurling curling currents of wind estheticize the bounded nature of territory:  migrations of flows of air that course above the terrain, tracing inroads of whitespace into the blackened map of the lower forty-eight until, over a sufficient amount time, the entire region would be wiped white or erased by air currents, and present only where wind-velocity was nil, in an atmospheric vanishing act of a truly windswept land, where winds course across by crossing out space and inevitably white-washing inhabited lands.

Winds over US whitening out whitening #3

Drained Nation Whitening #6

In another sense, the wind maps register the messiness of local interaction, so absent from the idealized rendering of the map, even if that interaction and specificity lies above where human interaction occurs, and creates a network of a sort that is constantly reconfigured before our eyes as it is drawn and redrawn in trajectories with comet-like tails.

Modelling Wind Flows 12-58 EST-4

The modeling of wind gusts across the contiguous United States suggests a new sense of the spectatorship of the D3 map, although real-time of the map qualities maintain an illusion of an actual meteorological surveillance of the skies.  Just as we cannot watch the unfurling of wind-currents of different velocities over the space that is mapped, they define the dispersal of wind currents across space as if at a remove from actual habitation:  the fine lines that recall stop-action tracing of six levels of gustiness across the nation are extraneous to sites of habitation, because habitations are not what is being described, or included in the data that drives the map:  the conventions recall streets or waterways or rivers, but follow a set of mathematically modelled swirls and whorls that render air apparent over the land that we more usually map, in a view to currents far above the ground.  And yet the mesmerizing drama of modeling data of wind currents is so elegant and engaging that it is hard to stop watching: its ambitious organization charts a record of our world at a remove from the categories of mapping that we are more habituated to scan.  In a way, the windmap is the most elegantly estheticized of terrestrial or worldly maps, because it is also the most etherial.

USA Windswhirls May 1 12-58

What is the subject of the map is the flow of data that is so oddly anthropomorphic, casting the map as a hirsute surface and second skin, even as it describes the velocity of air currents above the land abstracted from any view of place?  Do the wind-currents create or seem to sculpt a sense of place in their whirls and eddies, giving a concrete palpability to the map’s surface that somehow runs against the flattened isotropic surface of a map?  Is it still a map, now that any sense of spatial indices are erased, and centers of habitation are dramatically reduced?  Or is it a screen?  One of the beauties of this projection is that as one zooms in to the ground, further cities appear in the map, providing the needed points of reference that would be too busy in the larger scale versions, where they would obscure the beauty and drama of the inroads made by the winds that circulate across the lands.

Shaggy USA

There is specific period eye that is attracted to the data visualization, familiar with reading data distributions rather than describing a topographic space in naturalistic terms of portrayal.  If the United States seems a shaggy dog, the most mesmerizing of D3 tricks in the book is to watch the ongoing expansion of wind currents across the Rocky Mountains, Desert, and California, from an imagined t-zero at which the calculations are assumed to begin, as winds begin to be inscribed, as if on an etch-a-sketch in reverse, and give contours and form to the blank black area that the first screen seems to map, suddenly giving it a texture that is specific to a date and time when the download of whether data began, until it gains something of a meteorological image of wind flows.

West Coast Winds 1

Califn Currents #3

Calif Currents #4

Calif Currents #5

Californai Currents #7

Is this sort of data visualization, as attractive as it is, a map?  The processing of the distribution of air currents is difficult to stop watching because of the elegance with which it makes us look at the winds that we notice but have such a hard time collectively grasping, and because of the currents, eddies, whirlpools and lines of different flow that the wind map increasingly reveals, so that it gains a coherence in itself that it initially lacked. The idea of mapping air is intensely appealing, because it acts, as a map, to make visible what is so easily overlooked or otherwise has no concrete identity by which to be grasped.  The parallel currents, if approximating a familiar natural appearance of a hirsute coat, are nonetheless quite conceptually difficult to envision in their relations to one another or totality.  The best reaction is one of wonder–wonder at being able to find a visual residue tracking the unrelated sensation of wind:  this is mapping, in a sense, as an exercise in synesthesia, where sight replaces the sensation of wind on skin.

There are elements of translating sense-based observations to a format of visual modelling in all maps, but the oddity of removing the array of wind-velocity from sense-peception of course seems odd because one rarely thinks of spatially locating winds with precision or fixity.  With closer examination of the trajectories of gustiness one notices, first, the odd pockets of calm across the land, oddly coincident with some cities, and probably not only because their buildings block the velocity or intensity of air flow, in what can appear like racing currents or overlain strands:

Pockets of Calm?

And then the country, as it is inevitably drawn by an invisible hand of the forces of the winds, cumulatively gains the contours that it originally lacked:

Modelling Wind Flows 12-59 ESTModelling 12-58 EST--3Modelling Wind Flows 12-58 EST-4

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Filed under CityLab, comet-like tails, D3, Fernanda Viégas, Google Maps, hint.fm, Martin Wattenberg, National Digital Forecast Database, NOAA, wind-maps