Jan
31
2010

Software Meteorologi dari NASA

Bagi Anda yang ingin terlihat keren atau hanya iseng – iseng saja ingin melihat prakiraan cuaca. Bisa dengan menggunakan software ini. Software yang bernama World Wind ini dibuat oleh NASA. Banyak sekali fitur – fitur di dalamnya, software ini mendapatkan data foto satelit cuaca dari NASA yang nantinya di overlay kan pada peta/globe dalam software tersebut. Peta yang di unduh tersebut bisa menjadi suatu animasi per 3 jam, maksudnya foto – foto tersebut diambil setiap 3 jam setiap harinya dalam 24 jam.

Untuk bisa melihat pergerakan awan dan angin serta tekanan udara seharusnya memilih beberapa overlay karena animasi tersebut di dapat dengan memunculkan gambar satu per satu pada tempat yang sama dalam durasi waktu tertentu. Semakin cepat banyak overlay yang dipilih maka akan semakin bervariasi dan semakin lama pula animasi tersebut. Dari pergerakan awan yang didapat dari foto inframerah tersebut bisa diperkirakan potensi terjadinya hujan pada suatu daerah.

Namun ini bukan suatu hal yang mudah, hanya orang – orang yang bekerja di bidang inilah yang sebagian besar mengerti bagaimana cara memprakirakan cuaca di saat yang akan datang. Perlu diketahui, software ini menjadi software rival dari google earth. Bahkan banyaknya fitur yang dimilikinya membuatnya dapat mengalahkan Google Earth.

Informasi dari website

3D Engine

World Wind allows any user to zoom from satellite altitude into any place on Earth, leveraging high resolution LandSat imagery and SRTM elevation data to experience Earth in visually rich 3D, just as if they were really there.

Particular focus was put into the ease of usability so people of all ages can enjoy World Wind. All one needs to control World Wind is a two button mouse. Additional guides and features can be accessed though a simplified menu. Navigation is automated with single clicks of a mouse as well as the ability to type in any location and automatically zoom into it.

World Wind was designed to run on recent PC hardware with 3D acceleration. Please refer to the download section for more information on system requirements.

Blue Marble

Sample of Blue Marble (mostly Asia)World Wind has a full copy of the Blue Marble, a spectacular true-color image of the entire Earth as seen on NASA’s Earth Observatory: the Blue Marble.

Put together from data of a variety of satellites such as MODIS and Terra, the Blue Marble can be seen in al l its glory at 1 km per pixel resolution.

 

 

Land Sat 7

Sample of Land Sat (a mountain range)Shot over Ames Research Center

Using World Wind, you can continue to zoom past Blue Marble and reveal the extremely detailed seamless mosaic ofLandSat 7 data.

LandSat 7 is a collection of images from 1999-2003 at an impressive 15 m per pixel resolution. It includes other color bands such as the infrared spectrum. Users will be able browse these different sets as they become available. Any changes and updates are automatically inherited by World Wind.

LandSat 7’s resolution makes it possible to see your own city, neighborhood, or landmarks in your vicinity. Seeing the whole globe like this puts the world in context with scientifically accurate data.

The complete LandSat 7 data set is too large to fit on a single machine so World Wind only downloads what you see and stores a compressed copy on your computer for later viewing.

 

SRTM

Combining LandSat 7 imagery with Shuttle Radar Topography Mission (SRTM) Data, World Wind can display a dramatic view of the Earth at eye level. Users will literally be able to fly across the world in any direction.

Picture of Mt. Fuji with three times the vertical exaggeration.

In addition, World Wind can exaggerate these views so a user can easily pick out the details.

Animated Earth sample - a hurricane over the east coast with ocean temperatureNASA SVS

Goddard Space Flight Center (GSFC) has produced a set of visually intense animations that demonstrate a variety of subjects such as hurricane dynamics and seasonal changes across the globe.

World Wind can take these animations and play them directly on the world. Anyone can immediately grasp where the event is taking place as World Wind rotates automatically into view.

 

 

MODIS

MODIS browser picture - different icons represent disasters across California

Moderate Resolution Imaging Spectroradiometer or MODISproduces a set of time relevant data that’s updated every day. MODIS catalogs fires, floods, dust, smoke, storms and even volcanic activity.

Another MODIS shot, this one being the LA Fire smoke back in November 2003

World Wind produces an easily customized view of this information and marks them directly on the globe. When one of these color coded markers are clicked, it downloads the full image and displays them.

MODIS images can download publication quality material at a resolution of 250 m per pixel. Anew fresh set of images can be downloaded every day.

World Wind also has a “tour mode” to automatically skim through any number of samples.

 

GLOBE

GLOBE sample - maximum temperature demonstrated World Wind is capable of browsing through and displaying GLOBE data based on any time the user wants. For example, a user can download today’s (or any previous day’s) temperature across the world.

You can view rainfall, barometric pressure, cloud cover, or even the student GLOBE samples themselves. Each sample comes with a temperature scale

 

 

 

Country & (USA) State Borders

Country borders across EuropeWorld Wind has a complete set of borders that traces every country and state. As you zoom into the world, the boundaries become more precise

You can observe where mountain ridges and rivers have formed the political boundaries of today.

 

 

Place names

City areas around SydneyWorld Wind has a full catalog of countries, capitals, counties, cities, towns, and even historical references. The names update dynamically, by increasing in number as the user zooms in. This prevents too many names from cluttering up the screen.

It’s likely that you’ll find your own town no matter how big or small it is in World Wind.

 

 

Visual Tools

World Wind comes with a variety of visual guides that help the user’s experience such as latitude and longitude lines, as well as extremely precise coordinate data.

North and South America with latitude and longitude linesThese helpers can be toggled on or off any time and are viewable with any of World Wind’s other features turned on.

Landmark Set

World Wind has the capability to display actual 3d models of landmarks on the earth. This helps to see the world in context to places a user may have been to. Those landmarks that do not have 3D models for it yet have place markers similar to how MODIS displays places of interest.

ntuk lebih jelas dan mendownload software tersebut klik di sini – download

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