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this is the

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international space station flight

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control room at nasa's johnson space

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center in houston

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which is in charge of overall operations

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for the station the payload operations

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integration center at nasa's marshall

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space flight center is in charge of the

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working with the crew on science on

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board the station and monitoring

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autonomous payloads as well there's a

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group of scientists at marshall in

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huntsville alabama that are leveraging

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vantage point of the international space

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station in earth orbit to provide some

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unsurpassed images

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of earth rather than of space

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the iserv camera turns its attention to

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our home planet taking hundreds of

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images a week to record the changing

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landscape of the environment

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the folks at marshall work with the

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iserv team to ensure the camera records

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the desired images as the station orbits

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the earth bill hubshere at marshall

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caught up with burgess howell the iserv

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principal investigator who shared some

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recently captured images

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we've shot about 40 or 45 thousand

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frames don't have the count handy right

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now

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our normal operation mode is we shoot

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three frames per second

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and we start before we reach a target

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and uh end afterwards so

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a normal target we will be getting

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anywhere from 30 to 150 frames now there

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are some targets where we've been

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acquiring a lot more data than that the

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first one is an area called los

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glaciates it's a national park in

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argentina it's right on the argentine

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and chilean border and it's it's

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particularly significant because it's

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one of the few areas where there are

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glaciers specifically a glacier called

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perito moreno which is actually growing

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most of the glaciers in that area in

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that in that particular glaciation field

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there are shrinking but perito moreno is

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growing and there's a lot of research

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there trying to figure out exactly

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what's going on why this one particular

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area as opposed to the other areas are

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are increasing glaciation is one of

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those things that has it's um

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it's a fingerprint of what the current

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climate is and how how things may be

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trending so uh glaciation studies around

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the world are very important the next

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one is uh is is lake titicaca this

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particular image is on the the

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northwestern shore of titicaca right at

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the border between peru and uh and

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bolivia uh titicaca is a very important

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area it's a

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local huge local fishery it's a

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very important local area because of the

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tourism business there and it also is a

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an indicator of the health of the planet

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as the water level rises and falls as

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the water quality increases and

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decreases it's a good indicator of

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what's going on generally in the

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environment the next image that we have

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is the upper nile in sudan this is a

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late afternoon shot

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you can see there's a pink glow cast

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across the landscape from the setting

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sun there

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the nile of course is is is critical for

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agriculture in the area most of the

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population uh in the desert environments

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live along riverbanks denial of course

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is the the focus of the population in

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that area

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what you see here is a set of villages

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that are interspersed with agriculture

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along the banks of the nile

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the nile itself is the the source both

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of the water and the fertilization for

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those fields

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the people in those areas depend on the

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the agriculture that's in their local

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area to survive and modifications of the

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environment the the nile has been

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modified uh over the last 50 years or so

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to

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have some significant effect on on the

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ability of the people to conduct their

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agricultural activities

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next image we've got here is uh is a

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volcano this is vulcan san miguel down

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in el salvador

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one of the activities that we try to

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keep up with here is is monitoring as

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many volcanoes as possible we like to be

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sure that we got a good baseline data

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set

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vulcan's son miguel is interesting to us

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because it erupted very recently it was

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it was active as late as late december

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of last year 2013.

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if you look closely at this image you'll

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see that there's a white area there

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immediately around the cone that's the

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the ash fall from the the most recent

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eruption around that there's a pinkish

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tan area those are pyroclasts that were

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spit out by the uh

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by the volcano during the eruption and

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then downhill you can see in a few

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places where the the sparks from the

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volcano have have lit off and burned

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some of the surrounding landscape the

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the forest at the base of the mountain

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there the last image that i was going to

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show you today was cedar chacoot

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seroshikut is an area in guatemala the

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image that you see here is a spot where

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they've been having persistent

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landslides if you look closely you can

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see that the land has slipped the

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landslides moving from upper right to

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lower left toward the the river there

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and you can see that the river itself

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has widened at the base of that hill

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because of the influx of material coming

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down the hill

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it

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this this particular landslide is is is

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persistent and ongoing it's been going

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on for quite some time now it affects

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the local population that it's dangerous

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for them of course but it also um it

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also is destroying some of the

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agricultural areas as well as modifying

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the river flow downstream

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these are images that we consider fairly

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significant for a variety of purposes a

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variety of reasons not just because

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they're pretty which which we happen to

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think that they are

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but because they they they look at they

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uh they are pertinent to specific areas

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of the research that uh surveil is

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involved with and that nasa supports in

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general

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howell and the iserv group are now

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creating a searchable database that

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would allow anybody to who has access to

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the internet to uh search the photos