S188400200_LEVE_BATHY English utf8 LEVES_BATHY_AVANT_1970.xml dataset Jeu de données Shom +33 (0)2 56.31.23.12 +33 (0)2 56.31.25.80 13, rue du Chatellier CS92803 BREST CEDEX 2 29228 France data-support@shom.fr https://www.shom.fr/ 2025-11-25T16:35:53 ISO 19115:2003/19139 1.0 utf8 surface 2 point false WGS 84 (EPSG:4326) Bathymetric dataset S188400200 Levé bathymétrique S188400200 S188400200 2025-06-30 revision http://www.shom.fr/BATHYMETRIE/LEVES_BATHY_AVANT_1970/S188400200 Shom +33 (0)2 56.31.23.12 +33 (0)2 56.31.25.80 13, rue du Chatellier CS92803 BREST CEDEX 2 29228 France bps@shom.fr http://www.shom.fr/ originator Bathymetric datasets are an extraction of surveys belonging to the Shom public database. For depth up to 50m, the vertical precision of soundings varies from 30cm to 1m and the horizontal precision varies from 1 to 20m. In deep ocean, the vertical precision is mainly around 1 or 2% of the bottom depth. It is sometimes more, it depends on the technology used. The data are referenced to ZH which is assimilated to LAT. Data are corrected for sound velocity variations. Data are acquired during the campaign S188400200 (http://dx.doi.org/10.17183/S188400200). // Instruments: Plomb de sonde // Number of soundings: 7025 Les levés bathymétriques sont des semis de sondes issus de levés provenant de la base des données diffusables par le Shom. Pour les fonds jusqu à 50m, la précision verticale des sondes varie de 30cm à 1m et la précision planimétrique de 1 à 20m. Au-delà, dans les grands fonds, la précision verticale est majoritairement de l ordre de 1 à 2% de la profondeur du fond. Parfois, elle est plus élevée selon la technologie utilisée. Les données sont référencées au ZH qui est assimilé à la Plus Basse Mer Astronomique (PBMA). Les données sont corrigées des variations de la célérité du son dans l eau. Les données proviennent de la campagne S188400200 (http://dx.doi.org/10.17183/S188400200). // Instruments: Plomb de sonde // Nombre de sondes: 7025 Shom +33 (0)2 56.31.23.12 +33 (0)2 56.31.25.80 13, rue du Chatellier CS92803 BREST CEDEX 2 29228 France bps@shom.fr http://www.shom.fr/ custodian asNeeded https://services.data.shom.fr/static/imagettes/LEVES_BATHY_AVANT_1970_PACK_DL/S188400200.png thumbnail png Bathymetry and Elevation Bathymétrie et altitude parameter SeaDataNet Parameter Discovery Vocabulary P02 2022-05-04 revision 120 http://www.seadatanet.org/urnurl/SDN:P02 plummets plomb de sonde instrument SeaDataNet device categories L05 2021-06-15 revision 81 http://www.seadatanet.org/urnurl/SDN:L05 research vessel navire océanographique platform_class SeaVoX Platform Categories L06 2021-03-25 revision 17 http://www.seadatanet.org/urnurl/SDN:L06 Bathymetric Dataset are available under Open License (version 2.0 - April 2017), Etalab mission Les levés bathymétriques sont diffusés sous Licence ouverte (version 2.0 d'avril 2017), définie par la mission Etalab Quote the source as follows: "Shom, bathymetric dataset. DOI: http://dx.doi.org/10.17183/S188400200" Citer la source de la manière suivante: "Shom, levé bathymétrique. DOI: http://dx.doi.org/10.17183/S202001900" Product not certified for navigation Ne pas utiliser pour la navigation Open License (version 2.0 - April 2017), Etalab mission Licence ouverte (version 2.0 d'avril 2017), définie par la mission Etalab Open License (version 2.0 - April 2017), Etalab mission Licence ouverte (version 2.0 d'avril 2017), définie par la mission Etalab No public access restrictions. Pas de restriction d'accès public. English utf8 oceans 8.9192054 9.5114 41.3753333 42.7112833 Coverage polygon 9.1392726 41.389829899999995 9.1396202 41.3895902 9.1370556 41.3868937 9.1380263 41.3864264 9.1391768 41.387301199999996 9.140519 41.3883558 9.1418492 41.3891827 9.142256699999999 41.3888591 9.1396681 41.3872053 9.1393086 41.3865821 9.1407227 41.387133399999996 9.1425923 41.3875169 9.1448573 41.3877686 9.1460078 41.388379799999996 9.147685599999999 41.389410399999996 9.148584399999999 41.3896741 9.150286099999999 41.3900696 9.151149 41.3902493 9.151328699999999 41.3908965 9.1514965 41.391687399999995 9.151868 41.3916634 9.1518561 41.390776599999995 9.1521317 41.390477 9.1528867 41.3905369 9.1536297 41.3906208 9.1542888 41.390201399999995 9.1549 41.3899018 9.1556071 41.3901415 9.1549839 41.3906688 9.155930699999999 41.3910163 9.1554633 41.391603499999995 9.156302199999999 41.3917833 9.1564939 41.391891099999995 9.156601799999999 41.392262699999996 9.156817499999999 41.3922986 9.156817499999999 41.3914597 9.156158399999999 41.391399799999995 9.156733599999999 41.3909684 9.156158399999999 41.3905969 9.155798899999999 41.3905609 9.156673699999999 41.3899737 9.1573089 41.3899617 9.1581837 41.389662099999995 9.1585672 41.3895902 9.1592024 41.389662099999995 9.1601132 41.389745999999995 9.1608562 41.389662099999995 9.1614554 41.389578199999995 9.1621744 41.389374499999995 9.163061299999999 41.389290599999995 9.163660499999999 41.3894344 9.164115899999999 41.3896142 9.164523299999999 41.3895902 9.1648949 41.3895422 9.1652664 41.3891588 9.165146499999999 41.388415699999996 9.1642837 41.388044199999996 9.163792299999999 41.388044199999996 9.163061299999999 41.3880802 9.162162499999999 41.388176 9.1618029 41.388415699999996 9.1613236 41.3885595 9.1608322 41.3885955 9.1600293 41.3885955 9.1596817 41.3885236 9.1592743 41.3883438 9.1585792 41.3883199 9.1578242 41.388248 9.157225 41.3885236 9.156230299999999 41.3884517 9.154888099999999 41.3884397 9.1542649 41.388583499999996 9.1535818 41.388979 9.152635 41.3886434 9.1513767 41.3882839 9.150369999999999 41.388463699999996 9.149591 41.3880562 9.148895999999999 41.3877087 9.1486802 41.3872053 9.1484166 41.3865702 9.148500499999999 41.3861747 9.148800099999999 41.3856354 9.149087699999999 41.385144 9.149842699999999 41.385072099999995 9.1504899 41.385120099999995 9.1528148 41.3856833 9.1550558 41.385275899999996 9.15798 41.3852519 9.1614314 41.385647399999996 9.164918799999999 41.384389 9.1686579 41.3836221 9.170982799999999 41.3812612 9.173152 41.3775221 9.1704435 41.375065299999996 9.1664648 41.3770787 9.1630972 41.375029399999995 9.1606165 41.3765514 9.1583994 41.3750893 9.1560385 41.375436799999996 9.1543128 41.3762158 9.1527189 41.375113299999995 9.1507056 41.376084 9.1494472 41.375940199999995 9.1460917 41.3770907 9.1457201 41.378385 9.145049 41.3794156 9.1455284 41.381021499999996 9.1446056 41.3812372 9.142759999999999 41.3819922 9.1414897 41.3826633 9.1406388 41.382135999999996 9.1393206 41.3827712 9.1370915 41.383921699999995 9.135341799999999 41.384532899999996 9.135557499999999 41.3860548 9.1366721 41.3871933 9.1383019 41.3890149 9.1392726 41.389829899999995 9.0734531 41.4774506 9.0757458 41.476480699999996 9.0754305 41.4760281 9.076691499999999 41.4750151 9.0772646 41.473872799999995 9.0770354 41.4727951 9.0764622 41.471954499999995 9.0753159 41.4719761 9.0753159 41.4706828 9.072708 41.4715019 9.0716477 41.4698637 9.0713325 41.4689153 9.0711892 41.4663287 9.070157499999999 41.466026899999996 9.0680941 41.4663071 9.0674636 41.465358599999995 9.0674636 41.4647335 9.0676642 41.463461699999996 9.067807499999999 41.4625347 9.0693837 41.4605299 9.0675496 41.4601203 9.067721599999999 41.4585034 9.0642826 41.4577057 9.0643113 41.4569943 9.0627064 41.456455299999995 9.0632509 41.4553989 9.066174 41.4562397 9.0664033 41.4546658 9.0657442 41.453781899999996 9.0665179 41.4527254 9.0657442 41.451518 9.064655199999999 41.450547799999995 9.0656868 41.4492325 9.0674636 41.449944099999996 9.068266099999999 41.4482407 9.069441 41.446580399999995 9.0684953 41.4456963 9.0692404 41.4448338 9.0684667 41.4439497 9.0692691 41.4431519 9.0704441 41.442504899999996 9.071361099999999 41.4436047 9.073080599999999 41.442353999999995 9.0745421 41.4421815 9.077321999999999 41.442677499999995 9.078153 41.4414267 9.0807896 41.4402407 9.0813341 41.4416424 9.0841712 41.4417286 9.0848877 41.4430009 9.0858907 41.443108699999996 9.0865212 41.4442947 9.0904186 41.4453513 9.091679599999999 41.445653199999995 9.092654 41.4477663 9.0920808 41.4482407 9.094201499999999 41.448521 9.0935424 41.4474429 9.092911899999999 41.4458041 9.093628299999999 41.445071 9.091393 41.444381 9.0940295 41.440887599999996 9.0911064 41.4399388 9.094172799999999 41.4360354 9.0917082 41.434612099999995 9.0944307 41.431722099999995 9.0921381 41.4300182 9.0947746 41.427796699999995 9.0920235 41.4266967 9.0917656 41.4255966 9.0939722 41.4241514 9.092310099999999 41.4219728 9.0941155 41.4206138 9.0906766 41.419751 9.0832255 41.4183488 9.078582899999999 41.4182194 9.0721062 41.4186724 9.0651137 41.4173565 9.0588663 41.418521399999996 9.055713899999999 41.4192548 9.0503549 41.418974399999996 9.0464574 41.4190176 9.0403246 41.4193411 9.0407155 41.426602599999995 9.0344222 41.427197899999996 9.0385145 41.4409144 9.0340095 41.4415872 9.0362448 41.4490911 9.034766099999999 41.4503589 9.0359353 41.4536965 9.0335281 41.4540846 9.035969699999999 41.4601125 9.0383082 41.4598279 9.0381363 41.456413 9.0403372 41.456438899999995 9.042194199999999 41.4571116 9.0444295 41.4568528 9.0451861 41.459983199999996 9.0474902 41.4611473 9.0505853 41.4599055 9.050310099999999 41.4579135 9.0519608 41.458508599999995 9.0530957 41.4606816 9.0556061 41.4613801 9.0555374 41.4626218 9.0564315 41.463967 9.0590107 41.4650793 9.0584949 41.4663209 9.0618994 41.4674073 9.0628967 41.469347299999995 9.062071399999999 41.4701491 9.0634126 41.471830399999995 9.0658886 41.4710803 9.068674099999999 41.475347899999996 9.0709439 41.475580699999995 9.0721819 41.475891 9.072800899999999 41.4771066 9.0734531 41.4774506 9.291268967946271 41.587282905715306 9.2927112 41.587169499999995 9.2918056 41.585847699999995 9.2898474 41.5866554 9.2881584 41.5876835 9.285784099999999 41.5888829 9.2828223 41.5895438 9.2830426 41.5903515 9.283361057883043 41.5909665212258 9.283341199999999 41.5910702 9.28341474273417 41.5910702 9.2837524 41.5917223 9.2845602 41.5927259 9.2856152032705 41.591624986285225 9.285243399999999 41.592421699999996 9.2847762 41.5933728 9.2881801 41.5958757 9.2878464 41.5968601 9.285660499999999 41.5961593 9.283658299999999 41.5968101 9.2819897 41.5975275 9.2821232 41.5981616 9.2854937 41.5984786 9.2873124 41.5983952 9.2881801 41.6009648 9.2855437 41.602016 9.285744 41.602900299999995 9.2871956 41.605503299999995 9.2866951 41.6066212 9.2892146 41.6088738 9.292184599999999 41.6090407 9.2941369 41.6097915 9.2955218 41.6105924 9.297123599999999 41.6096747 9.2985586 41.6100752 9.2986086 41.611159699999995 9.2999435 41.6117437 9.300961299999999 41.612628099999995 9.3023963 41.6134457 9.3035476 41.6132621 9.304665499999999 41.6133789 9.3058836 41.6144301 9.3072351 41.615347799999995 9.3066511 41.6167995 9.3065844 41.6182845 9.3054498 41.618685 9.305232799999999 41.620737299999995 9.3054831 41.624024399999996 9.307118299999999 41.6254594 9.307668999999999 41.626360399999996 9.308453199999999 41.6268777 9.310388699999999 41.6261101 9.312140699999999 41.6261769 9.313275299999999 41.6253092 9.3145601 41.624525 9.3165958 41.6231234 9.3177972 41.6221556 9.318064099999999 41.621037699999995 9.3162287 41.617567 9.3156447 41.616332299999996 9.3169462 41.615080899999995 9.3191487 41.614296599999996 9.3200664 41.6141465 9.321284499999999 41.6156982 9.3231199 41.616365699999996 9.3246717 41.616032 9.3258563 41.6158651 9.3272579 41.6164157 9.3287263 41.6170665 9.3294771 41.6176004 9.3311791 41.6191355 9.332814299999999 41.6204203 9.3341158 41.6212212 9.3367354 41.6212546 9.3376364 41.6194025 9.340873499999999 41.619001999999995 9.3427756 41.619385799999996 9.345144999999999 41.6175837 9.347164 41.6171666 9.3488993 41.6174669 9.350667999999999 41.6180843 9.3527036 41.6170665 9.3543054 41.616816199999995 9.355122999999999 41.6169163 9.356824999999999 41.6191689 9.3577427 41.6203535 9.3567916 41.6214715 9.3563077 41.6230733 9.3561742 41.6244916 9.3575258 41.627111299999996 9.357726 41.6275784 9.3563578 41.6284461 9.3581598 41.630581899999996 9.3589441 41.631599699999995 9.358710499999999 41.6323005 9.355339899999999 41.6307654 9.353020599999999 41.6299311 9.350985 41.6296141 9.3506846 41.629981199999996 9.350083999999999 41.6333851 9.3500506 41.6348033 9.3501006 41.636271699999995 9.358610299999999 41.6347867 9.3589441 41.635937999999996 9.3525034 41.6405265 9.353321 41.6407768 9.3596115 41.6407435 9.3626233 41.6406523 9.3629981 41.635000999999995 9.3651318 41.6366733 9.3662274 41.635808399999995 9.3700622 41.6366733 9.3754828 41.640075599999996 9.3808168 41.6418921 9.3809898 41.6329251 9.3862951 41.632521399999995 9.386987099999999 41.620613399999996 9.387131199999999 41.6075233 9.3874772 41.5943755 9.3872754 41.5848319 9.3812493 41.585639199999996 9.3769821 41.5863312 9.377356899999999 41.581458399999995 9.375915299999999 41.581516099999995 9.3753674 41.584053399999995 9.3726571 41.5846589 9.372887799999999 41.5898488 9.370783 41.590165899999995 9.370292899999999 41.5965668 9.3654201 41.5975472 9.3634883 41.5958172 9.354377099999999 41.5958172 9.3541753 41.5940584 9.340681499999999 41.594981 9.3403355 41.5967975 9.3404508 41.5984121 9.3392687 41.598729299999995 9.3386632 41.6011513 9.334424799999999 41.6015549 9.3340788 41.6040346 9.3301863 41.6032849 9.3284852 41.602218099999995 9.3277644 41.6023911 9.3278509 41.6043229 9.3245351 41.6044382 9.3196624 41.6048707 9.3132903 41.6010359 9.3111278 41.598123799999996 9.3091672 41.5947792 9.3068894 41.592155399999996 9.304755799999999 41.589993 9.302535599999999 41.589964099999996 9.300575 41.5895316 9.300027199999999 41.5887531 9.2989892 41.587628699999996 9.2962501 41.5853797 9.2937704 41.5855527 9.293338 41.5859564 9.2934821 41.586734799999995 9.292518399999999 41.5873826 9.291984399999999 41.587816499999995 9.291268967946271 41.587282905715306 9.290533203752405 41.5873407603889 9.288981 41.588200199999996 9.288446542697312 41.58807877875498 9.2885011 41.588050599999995 9.2905327 41.5873408 9.290533203752405 41.5873407603889 9.286891731819347 41.58888183595593 9.286328 41.5892348 9.286230156555005 41.58937488857175 9.2862736 41.5892011 9.286891731819347 41.58888183595593 9.285840256993867 41.59093461957067 9.2859442 41.59092 9.285728217744227 41.59138281471674 9.285840256993867 41.59093461957067 9.453298103859085 42.693279777878935 9.453054999999999 42.6932506 9.4522507 42.6934374 9.4517192 42.694371 9.4512165 42.6949168 9.4501967 42.6957643 9.4504839 42.696482499999995 9.4512739 42.6963101 9.4518772 42.6953908 9.4523799 42.6954339 9.452626832642201 42.69524650562975 9.4526111 42.695292599999995 9.4527307 42.6980071 9.4523988 42.699054 9.45232777032926 42.69970706873689 9.4518925 42.6995927 9.4516545 42.7010035 9.4518925 42.7018874 9.4527424 42.7028393 9.453746837963726 42.702683753181354 9.4545376 42.7042413 9.455521343492293 42.70430001045188 9.455496199999999 42.705117099999995 9.4546802 42.7051851 9.454000299999999 42.706528 9.454204299999999 42.7077178 9.454527299999999 42.7086697 9.455071199999999 42.7101316 9.45532119755677 42.71011139577625 9.455815 42.711631399999995 9.4604526 42.711029499999995 9.4607712 42.7101445 9.4741529 42.7092241 9.4809146 42.708834599999996 9.4902606 42.7082682 9.4904865 42.7076253 9.4769059 42.7074785 9.4745568 42.706303999999996 9.4760984 42.7008718 9.4762452 42.6980088 9.4795486 42.697274799999995 9.4973868 42.6911819 9.511863 42.6855979 9.5091371 42.677172399999996 9.507296199999999 42.671968299999996 9.5036144 42.659896499999995 9.502935899999999 42.659250799999995 9.4973874 42.6634478 9.4944993 42.666592 9.492251399999999 42.6665778 9.4905584 42.6654823 9.4863188 42.663888899999996 9.4805995 42.6615414 9.4754066 42.6606166 9.4717503 42.6589379 9.4701284 42.6583545 9.4657749 42.6569176 9.4626165 42.6562063 9.4610516 42.6561494 9.460141 42.6574867 9.4519463 42.6567611 9.450306399999999 42.6606868 9.4487869 42.6643915 9.447643099999999 42.668130399999995 9.4470797 42.6708961 9.446690322547637 42.6732898 9.4457043 42.6732898 9.4455216 42.6763352 9.446318000092383 42.67646791518847 9.4462943 42.6766837 9.4466529 42.678134799999995 9.447233299999999 42.679483499999996 9.446891899999999 42.6812761 9.446857699999999 42.682693199999996 9.4467724 42.685305199999995 9.446891899999999 42.6869783 9.447165 42.687678299999995 9.4479674 42.6895563 9.4489406 42.6903587 9.4496405 42.6911269 9.4500674 42.691400099999996 9.451399 42.691434199999996 9.452389199999999 42.6911099 9.453277 42.692475699999996 9.453345299999999 42.693141499999996 9.453298103859085 42.693279777878935 9.455953878508158 42.70432582442314 9.4561847 42.7043396 9.455942171553204 42.70514010174485 9.4559381 42.705083099999996 9.455953878508158 42.70432582442314 9.455944559712266 42.70517353597174 9.4561356 42.7059376 9.4561356 42.706534671050356 9.4560911 42.706392 9.4559721 42.705559099999995 9.455944559712266 42.70517353597174 8.938875721460922 42.63557051801401 8.938753499999999 42.6354666 8.938422899999999 42.6362339 8.938594646904773 42.6364359400808 8.9383865 42.6372533 8.9371005 42.6371373 8.936066 42.63735 8.9352055 42.6385296 8.9352538 42.6402699 8.9355922 42.640676 8.9365881 42.6410434 8.937230758786704 42.641351526570446 8.937358518769635 42.641569425136254 8.9375936 42.642252 8.9372886 42.6427574 8.9370721 42.6437678 8.9361338 42.644465499999995 8.9356045 42.6439844 8.9343534 42.64384 8.9338482 42.6449467 8.9303838 42.645259499999995 8.930816799999999 42.6442249 8.934497799999999 42.6435272 8.936422499999999 42.6428777 8.9364706 42.6418672 8.9350992 42.6411936 8.9347624 42.640279299999996 8.9346383 42.6388801 8.9334297 42.6382517 8.931583 42.638193699999995 8.9303358 42.638155 8.9291659 42.638077599999995 8.9285858 42.6375169 8.9282474 42.6376716 8.9281893 42.638155 8.9275029 42.6381647 8.9267487 42.638039 8.9252501 42.638183999999995 8.9250761 42.637594199999995 8.9243896 42.6376329 8.924544299999999 42.6386481 8.9232874 42.6389188 8.9220691 42.639063799999995 8.9199614 42.6392089 8.919623 42.638155 8.9187721 42.6382903 8.9190423 42.6399949 8.920658999999999 42.6525246 8.921785 42.6603195 8.9229254 42.6636247 8.9276535 42.6642763 8.929675099999999 42.6652621 8.930610699999999 42.6653289 8.9332171 42.6648444 8.9351217 42.6652286 8.9406853 42.669856599999996 8.9466999 42.6703244 8.9538339 42.6719951 8.959197 42.6706919 8.9656293 42.670307699999995 8.9722955 42.671042799999995 8.980031 42.670909099999996 8.9779927 42.6665318 8.9765225 42.6642763 8.973364799999999 42.6571256 8.9742503 42.6544023 8.9746513 42.650041699999996 8.972813499999999 42.6475022 8.971385399999999 42.6454619 8.9718011 42.6425324 8.9729904 42.6418749 8.9743923 42.640840399999995 8.9724006 42.6397768 8.9702251 42.6386359 8.968968199999999 42.6381332 8.9675663 42.637524 8.966203 42.637079299999996 8.9658743 42.635725699999995 8.9641436 42.6352809 8.963099399999999 42.6352809 8.9605759 42.635889999999996 8.9590772 42.635948 8.957617299999999 42.6359287 8.956147699999999 42.6356967 8.9539336 42.6350489 8.9509363 42.6346235 8.9491766 42.6345074 8.9464694 42.6341594 8.9445163 42.634198 8.9427857 42.6341304 8.9416544 42.6341884 8.9411904 42.6343817 8.9394017 42.6348555 8.938875721460922 42.63557051801401 1884-01-01T00:00:00 1887-12-31T00:00:00 -0.40000000596046448 105 vertical-crs-id-0 not known vertical-cs-01 coordsys-axis0id Z down 16.526704635862991 http://www.seadatanet.org/urnurl/SDN:L11::D01 Lowest Astronomical Tide not known XYZ ASCII 1.0 Shom +33 (0)2 56.31.23.12 +33 (0)2 56.31.25.80 13, rue du Chatellier CS92803 BREST CEDEX 2 29228 France bps@shom.fr http://diffusion.shom.fr/ distributor 0.17599999999999999 https://diffusion.shom.fr WWW:LINK-1.0-http--link Shom marketplace to download surveys Espace de diffusion du Shom pour télécharger les levés Shom marketplace to download surveys Espace de diffusion du Shom pour télécharger les levés https://data.shom.fr WWW:LINK-1.0-http--link Shom Geoportal Portail d information géographique du Shom https://services.data.shom.fr/INSPIRE/wms/v?service=WMS&request=GetCapabilities&version=1.3.0 OGC Web Map Service Service de consultation LEVES_BATHY_AVANT_1970_WMSV Access point WMS Access point WMS http://www.sdn-taskmanager.org/ WWW:LINK-1.0-http--link SeaDataNet web data access with registration dataset Uncertainty_Horizontal 2019-12-05 publication 20 true Uncertainty_Vertical 2019-12-05 publication 0.05z+1 true Bathymetric datasets, collected before 1970, are historical surveys acquired with leadlines (and single-beam echosounders after 1930-1940). Quality controls and qualification, conducted by the Shom, on these datasets are not exhaustive. Datasets may present significant uncertainties and errors may remain. Ask the data centre for details. Levés bathymétriques collectés avant 1970, données historiques principalement acquises au plomb de sondes (et au sondeur monofaisceau après 1930-1940). Le contrôle et la qualification conduits par le Shom sur ces données ne sont pas exhaustifs. Les données peuvent présenter des incertitudes importantes et des erreurs peuvent subsister. Metadata publicly available Métadonnées publiques et gratuites