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ESA - Observing the Earth - Earth from Space: ‘Land of Terror’ - images

ESA - Observing the Earth - Earth from Space: ‘Land of Terror’ - images | Remote Sensing News | Scoop.it
The image shows the extraordinary landscape of the Tanezrouft Basin, one of the most desolate parts of the Sahara desert, in south-central Algeria. The region is known as ‘land of terror’ because of its lack of water and vegetation.
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Two Views of the Painted Desert : Image of the Day

Two Views of the Painted Desert : Image of the Day | Remote Sensing News | Scoop.it
Acquired March 28, 2009, these images provide two views of Arizona’s Painted Desert.

In northern Arizona lies an expanse of arid, erosion-prone badlands made of multicolored mudstones and clays. This “Painted Desert” stretches from the Grand Canyon in the northwest to the Petrified Forest National Park in the southeast.
On March 28, 2009, the Thematic Mapper on the Landsat 5 satellite captured two views of the Painted Desert. These images have been rotated so that north is at right........

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What Determines the Quality of a 3D Laser Scan? - LiDAR News

I need some help on this one. The issue of the “quality” of a laser scan has come up this week while doing some research. Is the quality of a scan from a “low cost” scanner that much different than one that is 2 or 3 times as expensive?

When I ask what determines the quality of a scan, it does not seem that easy to succinctly explain. It’s one of those things that people with experience know, but it is not simple to describe especially to a novice. It’s one of those fundamental issues that is taken for granted when you are in the business.

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Tutorials & technical matters: H2O environmental AquaLED: Remote sensing techniques Part I: Stacking multispectral bands using ERDAS

Tutorials & technical matters: H2O environmental AquaLED: Remote sensing techniques Part I: Stacking multispectral bands using ERDAS | Remote Sensing News | Scoop.it

Satellite imagery can be used for several purposes. In environmental studies, its use has obvious advantages: low cost, large spatial coverage, and historical snapshots of a certain phenomena. In this series of posts, I am uploading a very well constructed tutorial on how to carry a Supervised Classification, for the study of multi temporal trends of a given geomorphological feature.

In this post, I am showing you how to stack multispectral bands in Erdas 2011. The tutorial has been elaborated by the ecologist and agricultural engineer Carola Buitron, supported by J. Fernandez and our team. The upcoming posts will show you the remaining steps to accomplish the task I mentioned. Enjoy and learn......

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Remote Sensing | Free Full-Text | Increasing Spatial Detail of Burned Scar Maps Using IRS‑AWiFS Data for Mediterranean Europe

A two stage burned scar detection approach is applied to produce a burned scar map for Mediterranean Europe using IRS-AWiFS imagery acquired at the end of the 2009 fire season.
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NASA MODIS Image of the Day: March 18, 2012 - Activity at Puyehue-Cord�n Caulle and Chaiten volcanoes, Chile | SpaceRef - Your Space Reference

NASA MODIS Image of the Day: March 18, 2012 - Activity at Puyehue-Cord�n Caulle and Chaiten volcanoes, Chile | SpaceRef - Your Space Reference | Remote Sensing News | Scoop.it

NASA MODIS Image of the Day: March 18, 2012 - Activity at Puyehue-Cordon Caulle and Chaiten volcanoes, Chile - SpaceRef...

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Observations of volcanic emissions using satellite remote sensing

Title, Observations of volcanic emissions using satellite remote sensing. Abstract. Volcanoes pose a threat to the human population at regional and global scales and so efficient monitoring is essential in order to effectively ...
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Landsat 8 Observatory with both instruments onboard

Landsat 8 Observatory with both instruments onboard | Remote Sensing News | Scoop.it

Landsat 8 Observatory with both instruments onboard , the Operational Land Imager (OLI) and the Thermal Infrared Sensor (TIRS). Landsat 8 is due to launch in January 2013.

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Blog de Geomatica Aplicada: EVALUACION DEL FUNCIONAMIENTO DE UN SISTEMA DE RIEGO USANDO SENSORES REMOTOS

Blog de Geomatica Aplicada: EVALUACION DEL FUNCIONAMIENTO DE UN SISTEMA DE RIEGO USANDO SENSORES REMOTOS | Remote Sensing News | Scoop.it

A continuación se presenta la traducción del artículo “Mali’s River of Life “aparecido en la revista “Rice Today” Vol. 10, No. 3 (Julio - Septiembre 2011), donde se muestra el gran potencial de usar las imágenes de los satélites de teledetección como Landsat junto con modelos de balance de energía para estimar la evapotranspiración (ET) o uso consuntivo a nivel de sistemas de irrigación o a nivel de parcela, en Malí, África occidental. Además de esta información básica (ET) para la gestión del agua para riego, se pueden estimar otras variables como el rendimiento por cultivo y la productividad del agua a fin de mejorar la productividad y la eficiencia del agua dentro del sistema.......

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Sandra Carolina Ramirez Forero's curator insight, January 14, 6:19 PM

Aplicaciones de imágenes de satelite en sistemas de riesgos.

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Soils and landuse in ireland with remote sensing

Soils and landuse in ireland with remote sensing | Remote Sensing News | Scoop.it

The issue of soils and land use in agriculture is very hot at the moment. Lots of projects looking at these issues using remote sensing. Coming either from an environmental, often water quality approach, or from an agronmetric/extension approach, trying to improve outputs and profitability of irish farming ( for example the Harvest 2020 report). Sometimes an image pops up that really emphasises that ultimately we are heavily influenced by geography. Below is an image I’m using in a project looking at grassland and it really emphasies the effect of soil on short and long-term land use choices in farming......

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Using RapidEye 5-meter Imagery for Extracting Building Footprints

Using RapidEye 5-meter Imagery for Extracting Building Footprints | Remote Sensing News | Scoop.it

Following up on last month’s piece on vegetation analysis utilizing 5-meter RapidEye imagery, for the March edition of The Geospatial Times we will demonstrate the value of this data for extracting building footprints across regional landscapes. RapidEye is a constellation of five 5-meter medium resolution satellites each offering 5 spectral bands of information. The RapidEye constellation offers a daily revisit time to every location on the planet with a huge footprint that is 40-km wide. The data is priced extremely competitively with a base price of $1.28 per square kilometer for all 5 spectral bands – academics receive a discount on this price. RapidEye adds a fifth band, the red edge, to the ‘traditional’ multispectral set of blue, green, red and near-infrared (NIR). The additional spectral data available in the red edge band allows users to extract more useful ‘information’ than you can from traditional 4-band imagery sources....

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India's spy satellite to be launched in April

He said Risat-1 is the first such satellite being built by India and is a bit complex compared to other remote sensing/earth observation satellites built and sent up earlier. According to ISRO officials, Risat-1 at 1850 kg is the ...
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MODIS - March 13, 2012 - Icebergs in the South Atlantic Ocean

MODIS - March 13, 2012 - Icebergs in the South Atlantic Ocean | Remote Sensing News | Scoop.it
At the end of summer, 2012, the South Atlantic Ocean held several icebergs. The Moderate Resolution Imaging Spectroradiometer (MODIS) aboard NASA's Terra satellite captured this true-color image of three large icebergs floating south of the South Sandwich Islands on March 7, 2012. These three icebergs were likely calved off the coast of Antarctica, and are floating on the currents of the Southern Atlantic Ocean, drifting northwest towards South America.

Speckles of bright white can be seen on the deep blue ocean water near the large icebergs. This is likely light reflecting off of several smaller icebergs in the area.

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Ebook: engineering ebook centre: Geoscience and Remote Sensing New Achievements

Ebook: engineering ebook centre: Geoscience and Remote Sensing New Achievements | Remote Sensing News | Scoop.it

The word Radar is the acronym of Radio detection and ranging. Radar is an active instrument, which measures the echo of scattering objects, surfaces and volumes illuminated by an electromagnetic wave internally generated belonging to the microwave portion of the electromagnetic spectrum. It was born just before the second world war for detecting and ranging target for non-civilian scopes. In this case the requested spatial resolution was not so challenging for the technology available that time. The opening of new technological frontiers in the fifties, including the satellites and the space vehicles, demanded a better spatial resolution for application in geosciences remote sensing (RS).

 

http://cdn.intechopen.com/finals/290/InTech-Geoscience_and_remote_sensing_new_achievements.zip

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Radial Flow Maps – A Different Way to Visualize Data

Radial Flow Maps – A Different Way to Visualize Data | Remote Sensing News | Scoop.it
Recently, I was asked to participate in a project that wanted to use GIS to help visualize movements of families between regions. In technical jargon this was called “Social Network Analysis&...
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Tutorials & technical matters: H2O environmental AquaLED: Processing remotely sensed imagery with ERDAS Part 2: Creation of an AOI (Area of Interest)

Tutorials & technical matters: H2O environmental AquaLED: Processing remotely sensed imagery with ERDAS Part 2: Creation of an AOI (Area of Interest) | Remote Sensing News | Scoop.it

The next step in the unsupervised classification process is the selection of an Area of Interest, a.k.a. AOI in Erdas Imagine. The reasons to select an AOI are:

- To reduce the file size (very important when dealing with several images).

- To reduce the range of spatial variation, which is important when we need to apply a technique that considers ranges of variation of the values that characterize an area.

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Soils and landuse in ireland with remote sensing

Soils and landuse in ireland with remote sensing | Remote Sensing News | Scoop.it
The issue of soils and land use in agriculture is very hot at the moment. Lots of projects looking at these issues using remote sensing. Coming either from an environmental, often water quality app...
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MAP: Landsat and Spot satellite images can help find the cause of flooding

Landsat and Spot satellite images having high spatial and spectral resolution can help find the causes flooding, erosion and landslides in the watershed ecosystem (DAS).

"The two images are able to monitor changes in land use in the watershed ecosystem, for example due to illegal logging and mining of sand and stone quarrying in protected areas," said Prof Dr Gunawan Totok MS in inaugural speech Professor of Geography Faculty of the University of Gadjah Mada (UGM) in Yogyakarta, Thursday.

According to him, the role of Landsat and Spot satellite images ysang has advantages in spatial and spectral resolution assist in the provision of regional data in determining the location of Watershed Observer Station (SPAS) for monitoring floods, sediment, and waste, because of its ability to describe the character of the watershed ecosystem Digital.

"Management Information Systems (MIS) flood and drought that is supported by the use of Landsat and Spot satellite imagery can be used as an early warning system framework floods and droughts," said the man born in Klaten, January 3, 1951 it.

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Landsat Tutorial

Landsat Tutorial | Remote Sensing News | Scoop.it

The Landsat series initiated the era of Earth observation from space for non-military purposes. Landsat-type data are now collected by satellite systems built by other countries and commercial enterprises, but Landsat data are the standard for Earth observations, and Landsat is the only system of its type with the mission to collect, archive, and distribute data of all the Earth's land surface.

The first Landsat was launched on July 23, 1972. This satellite carried on board two instruments to look at the Earth's surface - a Return Beam Vidicon (RBV) and a Multi-Spectral Scanner System (MSS).

Landsat-1, originally called the Earth Resources Technology Satellite (ERTS-1), was followed by Landsats-2, -3, -4, -5, and -7. Landsat-6 unfortunately failed to reach orbit. Return Beam Vidicons and Multi-Spectral Scanner Systems were flown on the first three Landsats. The MSS proved to be a more useful and reliable instrument that the RBV. Landsats-4 and -5 were equipped with an MSS and an improved version of the MSS, the Thematic Mapper (TM). Landsat-6 carried an "Enhanced Thematic Mapper" (ETM) only, and Landsat-7 is carrying an "Enhanced Thematic Mapper-plus," or ETM+. The operating dates of the Landsat satellites and the instruments on them are listed on Table 1.

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Landsat 5 satellite sees Mississippi River floodwaters lingering

Landsat 5 satellite sees Mississippi River floodwaters lingering | Remote Sensing News | Scoop.it
In a Landsat 5 satellite image captured June 11, 2011, flooding is still evident both east and west of the Mississippi River near Vicksburg, Miss.
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EO Newsroom: New Images - Changes in the Mamore River, Bolivia

EO Newsroom: New Images - Changes in the Mamore River, Bolivia | Remote Sensing News | Scoop.it

The Mamore River drains north from the Andes Mts. in lowland Bolivia. An image taken in July 2003 from the International Space Station (ISS007-E-10797, 14 June 2003, 12:36 GMT) shows an 85 km stretch of the river south of the lowland town of Trinidad in the Beni Province. A 55-km stretch (centered at 15.2°S 66°W) was rectified to the commercially available 1990 edition of the Landsat TM imagery of the world.

Numerous changes in river pattern are visible in the decade since the Landsat imagery was acquired. A pilot study was undertaken to characterize these rapid changes. Tie points were selected for geomorphic features which do not undergo short-term change- i. e. oxbow lakes and subsidence lakes in the floodplain. The ISS image was enhanced slightly to reveal the Mamore River channel......

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USGS Director Lauds Landsat Virtues vs. Google Earth Engine - All Points Blog

In a post to the Washington Post’s Post Carbon blog, USGS Director Marcia McNutt reminded everyone that Landsat data was the basis for the imagery used in Google’s new Google Earth Engine (see my APB post on GEE). As if to say, "hey the USGS had a hand in collecting the data…don’t forget about us," Ms. McNutt exposed the largest glaring weakness of our earth observation program: It doesn’t shout loud enough about its investment, and the ROI on that investment, of remotely sensed data. Since the launch of the Landsat-1 in 1972, satellite data has been under appreciated by the masses and certainly under marketed by the USGS. Until Google Earth.

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RapidEye’s imagery assists in Africa's malaria control project

RapidEye announced that its imagery is being used by the MALAREO project to assist malaria control programmes in South African countries.

While mosquitoes can obviously not be observed via satellite, their habitats, which are considered malaria risk areas, can be. The MALAREO project, funded by the European Commission under FP7, is a mixed European-African consortium which incorporates years of experience in malaria control with the Global Monitoring for Environment and Security (GMES) EO capacity.

Approximately 25,000 square kilometres of RapidEye data was provided via the EC/ESA GMES Space Component Data Access (GSC-DA) covering the MALAREO study area in South Africa, Swaziland and Mozambique. The data was acquired on five different days between July 18 and November 10, 2011, with total cloud cover of less than one percent. RSS - Remote Sensing Solutions GmbH, partner in the project consortium, is responsible for data processing and the development of Earth Observation (EO) products.

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Earth as Art : atlas-swir

Earth as Art : atlas-swir | Remote Sensing News | Scoop.it
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Exploring Aerial Photogrammetry using Bundler and MeshLab

This video shows how MeshLab can be used to convert point cloud data into a triangulated polygonal surface. For more details check out my blog post on the sa...
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