PROMOTIONS :
Réf T26S : Sky-Watcher 114/900
Réf E324 : Ecusson Aviation
Réf D03 : JUPITER, VOYAGER 1 ET 2 - Série de 31 Diapositives
Réf C001 : CASQUETTE AU SIGLE DE LA NASA
Réf D10 : LES COLONIES SPATIALES DU FUTUR - Série de 20 Diapositives
Réf DC2 : 1985 - 1995 PERSPECTIVES SPATIALES EUROPÉENNES - Série de 12 Diapositives
Réf : Toutes les Photos Carrées
La Photothèque Pro
Espace Revendeurs
Nos produits
Tirages Photos
Stylo de l'Espace - Fisher Space Pen
Matériel d'Observation
Télescopes
Lunettes Astronomiques
Jumelles et Binoculaires
Planétariums
Posters
Casquettes NASA
Diapositives
Message aux E.T.
Cartes Murales
Cartes Postales
Ecussons Aviation
Liste des produits
Nos liens favoris
*****************
Franck et flo
Rechercher
Recherche avancée
Newsletter
Se désincrire
Information
Livraison & retour
Confidentialité
Nous contacter
PageRank
Accueil
»
Tirages Photos
»
Terre vue de l'espace - Villes
»
V01564
Réf V01564 : A Multi-spectral Look at El Reno, Oklahoma
Sélectionnez ci-dessous le format de tirage
que vous souhaitez commander
DIMENSIONS
TIRAGE Haute Définition
TRANSPARENT*
40 x 60 cm
23.00 €
20.70 €
125.00 €
50 x 75 cm
29.90 €
26.91 €
140.00 €
60 x 90 cm
45.00 €
40.50 €
170.00 €
80 x 120 cm
75.00 €
220.00 €
100 x 150 cm
109.00 €
290.00 €
*Le transparent est un support translucide
que l'on applique devant un néon
Thème :
Terre vue de l'espace - Villes
Description
:
(La description de cette image n'existe qu'en anglais)
On September 4, 2000, the satellite acquired these multi-spectral data over the U.S. Department of Agriculture's Grazing Lands Research Laboratory near El Reno, Oklahoma. This series of false-color composite images demonstrates some of the many remote-sensing measurements that scientists can make with high-resolution (up to 15 square meters per pixel), multi-spectral data. In the top image, bright red colors indicate green vegetation, which at this time of year only includes irrigated lands and riparian zones. Gray-green colors represent harvested winter wheat fields. Dendritic drainage patterns are clearly depicted in the lower left and upper right portions of the scene. The second two images show that there is a strong correlation between the abundance of green vegetation (referred to as Normalized Difference Vegetation Index, or NDVI) and land surface temperature. Vegetated areas have NDVI values of greater than 0.3 (blue and green pixels) and are relatively cool (315-320 Kelvin). Bare soil surfaces have NDVI values close to zero (orange and yellow) and are relatively hot (325-330 Kelvin). Water bodies have a very low NDVI of -0.2 (red) and cool temperatures of about 300-305 Kelvin (blue). The fourth and fifth images represent components of the surface energy balance over the region at 11:30 a.m. local time. Surface energy balance shows the relationship between incoming solar energy, energy absorbed by the surface, and energy reflected or emitted from the surface back up into the overlying atmosphere. These images provide insights into the complex processes of direct radiation, conduction, and convection that are important for scientists in studies of both weather patterns and the water cycle. The fourth image shows sensible heat and the fifth image shows latent heat, which represents energy flowing from the Earth's surface into the atmospheric boundary layer. Sensible heat is energy flow due to temperature gradients, while latent heat is energy flow due to evapotranspiration. The Team derives sensible and latent heat by combining measurements of surface temperature and vegetation abundance (NDVI) with surface meteorological measurements. Together, they show that heat flow from bare fields is dominated by sensible heat, while heat flow from vegetated areas and water bodies is dominated by latent heat. The latent heat flux measurements derived from data can be converted into rates of evaporation, shown in the sixth image, and is therefore a direct measure of water lost to the atmosphere. Before thermal infrared satelllite imagery became available, spatial changes in evaporation could not be measured.
Les clients qui ont acheté ce produit ont aussi acheté
Réf S00226 : Astronaute pendant une sortie extra-Véhiculaire
Réf T01712 : Rocky Mountains, Idaho, Montana, and Wyoming, U.S.A. April 1994
Réf T02667 : Salar de Coipasa, Bolivia November 1984
Réf E202 : Ecusson Aviation
Réf E325 : Ecusson Aviation
Réf SF1007 : Le Fisher Space Pen Pocket Chromé à capuchon amovible orné d'une Navette Spatiale
Réf T95GPE : PERL-VIXEN 106/1000 GPE
Réf T89 : Lunette ED 93/1000 GP
Mon compte
Créer un compte
Mon Panier
Votre panier est vide
Langues
Informer un ami
Promotions
Réf DC2 : 1985 - 1995 PERSPECTIVES SPATIALES EUROPÉENNES - Série de 12 Diapositives
5.95 €
-
2.00 €
Nouveautés
Réf C304 : CELESTRON NEXSTAR 4 GO-TO
999.00 €
Devises
US Dollar
Euro
Critiques
Ecrire une critique sur ce produit
Meilleures ventes
Réf T67GP : Lunette FLUORITE 106/920
3,541.00 €
Dernière Mise à Jour mardi 21 mai 2024