ligne de relief

English translation: contour (line)

07:45 Sep 1, 2011
French to English translations [PRO]
Science - Geology / Study of location for hydroelectric power plant
French term or phrase: ligne de relief
This text discusses the merits of a particular location for the site of a future hydroelectric power plant in a mountainous region.

"La rivière coule essentiellement dans les formations du complexe de base datant du précambrien [...].
L'orientation des unités est NNE-SSW et la rivière suit tantôt cette direction, tantôt sa normale où elle va couper une ligne de relief. C'est le cas au site X où cette ligne de relief, orientée à peu près Nord-Sud, est traversée par la rivière selon une direction Est-Ouest. Cette ligne de relief fait partie d'une unité de granites..."

I'm considering "topographic line" and "line of topography" but am unsure whether "line" is indeed the right word here.
David Goward
France
Local time: 11:37
English translation:contour (line)
Explanation:
I would use "contour", not "contour line" here because those are lines on maps plotted at specific, regular heights and I think that though this is a theoretical line tracing points of the same height, it is not necessarily at one of those specific heights.

www.persee.fr/web/revues/.../abpo_0003-391x_1944_num_51_1_1...
de A Meynier - 1944 -
" ancienne vallée coupant perpendiculairement une ligne de relief, et qui, par ...... il faudrait éliminer tout le Léon... et changer la définition habituelle du bocage. ..."

sudwall.superforum.fr/t925p30-radar-air-murane-cavalerie-...
"... même si leurs murs de protection sont écroulés, sur une ligne de relief à 820 .... faute d'une bonne définition sur Google Earth, ..."

www.ciria.org.uk/suds/cs_exwick heights.htm
"Where these flows cross the contour, they drop down in stone filled baskets to prevent erosion before entering the biodiversity pond at the bottom of the site. ..."

www.fireandfury.com/scenarios/jupiter1.pdf
"Similarly, the Germans cannot see the British setup area until they cross the contour. Terrain, Umpire Notes, and Options. •. The map is 4' long by 3' wide. ..."

www.strings.ph.qmul.ac.uk/~jmc/sefp/week1.pdf
"just as the paths of steepest descent cross the contour lines at right angles. (which is why rivers and streams cross the contour lines on a ..."







--------------------------------------------------
Note added at 3 hrs (2011-09-01 11:08:19 GMT)
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The verb "to contour" is also used by walkers, climbers and skiers to mean traversing the slope of a hill maintaining the same height.

www.scottishsport.co.uk/walking/caerketton.htm
"... another path and a fence running across the hill from the top of the lifts. Follow the path to the left (east), as it runs parallel to the fence contouring the hillside. ..."
Selected response from:

B D Finch
France
Local time: 11:37
Grading comment
Thank you.
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +1high contour, line of relief
Bourth (X)
4 +1contour (line)
B D Finch
3ridge, line of hills
Rachel Fell


  

Answers


10 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5
ridge, line of hills


Explanation:
that's how it seems to me - I think you could use ridge in some instances, line of hills in others

Rachel Fell
United Kingdom
Local time: 10:37
Native speaker of: Native in EnglishEnglish

Peer comments on this answer (and responses from the answerer)
neutral  Guy Bray: I would say "higher ground"
7 hrs
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33 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
high contour, line of relief


Explanation:
I like "high contour", but a) there is not a lot of evidence for it, and b) we don't know (do we?) that "relief" here necessarily means "high".

"Line of relief", which is also nicely vague, gets some ghits.

www.michigan.gov/documents/deq/GIMDL-MAS09_302438_7.pdf
Yet, whether a LINE OF RELIEF or not, each seismotectonic line is throughout ..... valley of the Escanaba river fifteen miles southwest of. Ishpeming, there is an exceedingly broad ..... stratigraphical acting along the lines of strike of the rock ..... presence, elevation, dip, and nature of the outcrop of the ...

pubs.aina.ucalgary.ca/arctic/Arctic38-3-231.pdf
Mackenzie River, Great Bear Lake, Eldorado, Cameron Bay, Yellowknife, Chipewyans, John Hornby, George M. Douglas, Paul “King” ..... and syncline finally dipping below the black bituminous sands. .... Looking back, a high, distant blue LINE OF RELIEF can be ..... the crossing the full force of the wind began to strike, but there ...

earthquake.usgs.gov/research/external/reports/02HQGR0100.pdf
(which we use as a proxy for the dip of the underlying Compton thrust ramp) we assign slip rates on ... Joaquin Hills anticline indicates abrupt changes in its strike where segments include a. NW-SE .... highstand system track, the shoreline recedes and rivers carrying sediment further .... The NORTHWEST TRENDING LINE OF RELIEF ...

c8.credit-bucket.info/ - Cached
22 Sep 2010 – ... political frontier of India was defined by the LINE OF RELIEF dividing the ..... The series of parallel ranges which strike off from the eastern end of .....

www.ags.gov.ab.ca/publications/BUL/PDF/BUL_003.pdf
Along the northern flanks of the Peace River HIGH CONTOURS trend in a general .... south-dipping Cambrian and pre-Devonian succession (Guthrie, 1956;. DeMille ...

Now, bear with me while I tell you my life - and potentially death - story. In 1990 I went hiking in Sarek National Park in Sweden, with a couple of cousins and a friend. We had planned to cross the park from south to north, but the weather was atrocious, the rivers rose, and we started hearing about drownings. We pitched our two tents and sat inside drinking tea and playing bridge, hoping the storm would subside and we could continue. Anxious Swedes retreating would stick their heads into our tent and marvel at these crazy Englishmen sipping hot tea or cocoa, with a spot of brandy, while outside the elements had let all Hell loose.
Eventually we decided it would be unwise to continue north so we headed east, back to civilization. At one point this involved crossing a stream in a deep cut running down the side of the hill. For a certain distance the river flowed down the bedding of the rock, then cascaded 5 metres over the edge of the rock layer, ran perpendicular to the main slope, then ran back down it again, over the top of the next bedding layer down, before doing another right turn, etc.
We sensed a fresh storm was already bucketing rain down in the higher ground, and feared a flash flood, so wanted to get across the stream, already strong, quickly. Using a rope, I anchored while the other three "pendulumed" across the stream on the end of the rope. When all were across, a cousin anchored when I was to "pendulum" across. But the "angle of attack" of the rope, the stream traversing direction, and the stream current was not ideal, and I didn't have the best support from the rope. I slipped and went under. With my backpack on, tethered at the end of the line, I went under and was held under by the current. Suddenly I felt I was moving downstream and had visions of the line having snapped, and of me going down the river and over the 5m rocky drop. I felt my glasses coming off and grabbed them, which meant I was largely one-handed scrabbling for grip (I scratched the lenses badly in the attempt). But as I was no longer tethered, the current no longer held me under, and I came up to the surface and was able to take a breath. Suddenly I was jerked to a halt and went under again. And I realized that cousin Chris was "playing" me like a fish, letting the line out and running down the bank while shortening the line, so I could get a breath, then anchoring me again. After what seemed like an awfully long time I rolled into the shallows, exhausted, but not so exhausted that I could not clamber to the top of the high bank for fear of the flash flood.

Bref, while we know the strike of the rock formation we do not know the dip so cannot say if your "relief" is a drop, as in my case, or a rise, a bar across the river which causes it to change direction and find a low spot through the bar.

--------------------------------------------------
Note added at 34 mins (2011-09-01 08:20:18 GMT)
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With the name of the river and, ideally, the site, we might be able to GoogleEarth it and see.

Bourth (X)
Local time: 11:37
Specializes in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 142
Notes to answerer
Asker: I'm rather reluctant to use "line of relief" as I think of aid to disaster-struck regions (even if the wider context suggests that this is not the case). I've used GoogleEarth... it's a blur! In the area in question, the altitude of the river falls from over 800 m to just under 200 m.


Peer comments on this answer (and responses from the answerer)
agree  chris collister
1 hr

neutral  cchat: Some of the references are really old and scientific language changes quite quickly.
2 hrs
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3 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
contour (line)


Explanation:
I would use "contour", not "contour line" here because those are lines on maps plotted at specific, regular heights and I think that though this is a theoretical line tracing points of the same height, it is not necessarily at one of those specific heights.

www.persee.fr/web/revues/.../abpo_0003-391x_1944_num_51_1_1...
de A Meynier - 1944 -
" ancienne vallée coupant perpendiculairement une ligne de relief, et qui, par ...... il faudrait éliminer tout le Léon... et changer la définition habituelle du bocage. ..."

sudwall.superforum.fr/t925p30-radar-air-murane-cavalerie-...
"... même si leurs murs de protection sont écroulés, sur une ligne de relief à 820 .... faute d'une bonne définition sur Google Earth, ..."

www.ciria.org.uk/suds/cs_exwick heights.htm
"Where these flows cross the contour, they drop down in stone filled baskets to prevent erosion before entering the biodiversity pond at the bottom of the site. ..."

www.fireandfury.com/scenarios/jupiter1.pdf
"Similarly, the Germans cannot see the British setup area until they cross the contour. Terrain, Umpire Notes, and Options. •. The map is 4' long by 3' wide. ..."

www.strings.ph.qmul.ac.uk/~jmc/sefp/week1.pdf
"just as the paths of steepest descent cross the contour lines at right angles. (which is why rivers and streams cross the contour lines on a ..."







--------------------------------------------------
Note added at 3 hrs (2011-09-01 11:08:19 GMT)
--------------------------------------------------

The verb "to contour" is also used by walkers, climbers and skiers to mean traversing the slope of a hill maintaining the same height.

www.scottishsport.co.uk/walking/caerketton.htm
"... another path and a fence running across the hill from the top of the lifts. Follow the path to the left (east), as it runs parallel to the fence contouring the hillside. ..."

B D Finch
France
Local time: 11:37
Native speaker of: English
PRO pts in category: 30
Grading comment
Thank you.

Peer comments on this answer (and responses from the answerer)
agree  AgriTech: I would also say "contour" or "contour line"
18 hrs
  -> Thanks Jacinda
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