Yes that is the primary disadvantage of visible satellite imagery.
Cloud cover, poor lighting conditions, or the angle of the satellite's view could obscure the erupting volcano from being visible in the image. Additionally, the timing of the satellite pass may not coincide with the eruption.
photosphere
Track its direction, and estimate its strength.
A light microscope produces an image of a specimen by passing visible light through it. This light passes through the specimen, is refracted and magnified by the lenses in the microscope, and then projected to create a magnified image that can be viewed through the eyepiece or captured using a camera.
A virtual image in optics is an image that is formed where light appears to converge, but does not physically intersect. This type of image cannot be projected onto a screen because it is perceived to be located behind the mirror or lens that produced it.
You can't. Tornadoes descend from thunderstorms, and so cannot be seen from above. You can, however, see the thunderstorms in a satellite image. See the link below for a satellite time lapse of storms tha produce tornadoes.
Cloud cover, poor lighting conditions, or the angle of the satellite's view could obscure the erupting volcano from being visible in the image. Additionally, the timing of the satellite pass may not coincide with the eruption.
Photos taken of Earth from an orbiting satellite
Quite simply, a visible image is an image that is clear and perfectly able to be seen through the naked eye.
The satellite image taker?
The satellite image shows topography, natural and manmade features without political borders.
The satellite image will have more realistic surface of the Earth compared to photograph.
The satellite image will have more realistic surface of the Earth compared to photograph.
Pixels
Visible images are only of use when taken during daylight hours because they require sunlight to make the image exposure. Infrared images relies on temperature differences to distinguish between objects and can be taken at night or daytime.
Satellite imaging. If you superimpose a satellite image of the Earth at a specific point with a satellite image of air pressure, and then expand those two images forward in time, you can get a decent estimate of what the whether is and is going to be at that point.
Exposure of photographic film is an irreversible change because it permanently alters the chemical composition of the film, creating a latent image that is later developed into a visible image. Once the film is exposed, the image cannot be undone or erased.