| Glacier advance and retreat - how to tell the diff | blt | 10/31/06 10:19 PM | With a quick look around our Earth we can find many glaciers. Some are retreating, some advancing and some maintaining a steady state. Most however are retreating. You can pretty much discern which glaciers are retreating or advancing by the way they |
| Re: Glacier advance and retreat - how to tell the | blt | 11/1/06 10:52 PM | Here is an interesting set of glaciers in the Juneau Icefield. Taku Glacier on the right is clearly advancing. The more recent 2006 high res image confirms it. You can see it is just slightly advanced over the low res image. Norris Glacier on the lef |
| NSIDC Glacier database | blt | 11/4/06 10:16 PM | Here are several thousand glaciers from the GLIMS database. The color of the placemark is a guide to the state of the glacier. Red indicates a retreating glacier and blue an advancing glacier. (White indicates no information is available) |
| Re: Glacier advance and retreat - how to tell the | blt | 11/5/06 11:07 AM | Here is another set of glaciers which have been tracked over the last 40 years. For each glacier in the study, the yearly mass balance was calculated and used to set the color of the placemark. The data was taken from this Glacier mass balance sprea |
| Re: NSDIC Glacier database | Frank4 | 12/3/06 6:05 AM | Nice work blt! Did you find the KMZ file of the NSIDC GLIMS database or make it yourself? I posted a story about this thread of posts you've done on glaciers at Google Earth Blog. Read the story here._________________________ Frank Taylor - Author |
| Re: NSIDC Glacier database | blt | 12/4/06 12:55 PM | Hi Frank: Thanks for the write up. As you say, GE makes it possible for each of us to take a look the earth's glaciers. You can't see everything from space, but it's great to have access to the things you can see. With glaciers, you can take an educa |
| Re: Galcier advance and retreat - how to tell the diff | mspelto | 12/12/06 5:34 AM | As a glaciologist who contributes considerable data to the World glacier Monitoring Service and the NSIDC I am glad to see the excellent work done here. The piedmont glaciers shown below however are not advancing as you note. In fact some trimlines a |
| Re: Galcier advance and retreat - how to tell the | mspelto | 12/12/06 7:24 AM | Beautiful view of this interesting glacier. I am impressed at what you can see. i have lived an worked on this glacire for many months. The glacier has been advancing non stop for 120 years, due to a positive mass balance. The glacier stopped calving |
| Re: Glacier advance and retreat - how to tell the | blt | 12/16/06 10:21 AM | Mspelto: Quote: |
| A wish for the future | Gerardo64 | 12/17/06 5:38 AM | Quote: |
| Re: NSDIC Glacier database | mspelto | 12/22/06 6:08 AM | I have reviewed the data from the World Glacier Monitoring Service which is recent and up to date and compared it to the GLIMS data. The GLIMS data shows numerous advancing glaciers in the Alps Bossons, Brenva, Tscheriva etc. that are in fact retreat |
| Re: NSIDC Glacier database | blt | 12/22/06 9:33 AM | That's the problem with data, it's often wrong. In this case I may have messed the translation to a .kml file, or it might just be out of date. I pulled the NSIDC data from a file I found named 'wgi05042005.dat'. I formatted it myself and used the 't |
| Re: NSIDC Glacier database | mspelto | 12/22/06 10:38 AM | I doubt it is what you did, and in fact I love how it is all displayed. The thing is that many of the glaciers were advancing 25 years ago, and if data is old, and NSIDC specializes in old you get what you get. Did you notice some of their old photog |
| Re: NSIDC Glacier database | blt | 12/22/06 4:28 PM | Quote: The Juneau Icefield project looks great, is there another step we can through to make it better? That really depends on how extensive you want to make the project. You can make each Glacier in the tour a folder which contains a placemark, |
| Re: Glacier advance and retreat - how to tell the diff | RobertJMUNDAY | 3/7/11 8:30 AM | Having spent 50 years wandering around various glaciated regions, have to wonder if the general retreat of glaciers is from either ... and there's not much doubt there is a general retreat ... 1) less winter snowfall ... I live in Canada and for su |