಼༲
• 0. ͺͣΌͶ• 1. ΩϟϧϪϱθͶΓΖ‫ش‬Ձึਜ਼ʤޭָద‫ش‬Ձึਜ਼ʥ͹ٗढ़֋൅• 2. ෵਼ΩϟϧΝૌΊ߻Κͦͪ৿ͪ͵؏଎घ๑͹֋൅• 3. ՆࢻԿߓਭླྀྖ؏଎༽͹ηϜʖφϓΧϱΠϕϨ֋൅• 4. ͕ΚΕͶժ଀Νཤ༽ͪ͢ߓਭླྀྖ؏଎घ๑Ͷ‫ͤؖ‬Ζ‫ڂݜ‬໌‫ݻ‬Բ୉ָ୉ָӅӅ ޽ָ‫ڂݜ‬ՌՌ ०‫گ‬द௶ ྍଢ120ɿͺͣΌͶͺͣΌͶ• ߓਭླྀྖ؏଎ͺɾՑઔ؇ཀྵ৏͹॑གྷ͵‫ۂ‬ແͲ͍Ζ͗ɾූࢢ๑ͶΓΖླྀྖ‫ࢋ׷‬ͺड़ਭ‫ޛ‬ͶߨΚΗʤ༁1೧‫ޛ‬Ͷ֮ఈͳ͵ΕʥɾΉͪɾ஦ঘՑઔͲ؏଎ࣙରͺΆͳΞʹߨΚΗͱ͏͵͏ɿ• ໃਕͲ࿊କ‫ܯ‬଎Ն೵͵ɾժ଀‫ܯ‬଎Ͷ΍ͳͰ͚Ցઔླྀ͹‫ܯ‬଎ͺɾ͞ΗΔ͹՟ୌΝմভͤΖ๏๑Ͳ͍Εɾࠕ‫ޛ‬͹෕‫ٶ‬͗‫ࠒݡ‬ΉΗΖɿ• ϨΠϩν΢ϞͶླྀྖ‫ܯ‬଎஍͗खಚͲ͘Ηͻɾͨ͹৚ๅͺ௜ંɾਭ๹͵ʹ͹൓இͶༀཱིͬɾΉͪߓਭ༩૟‫ࢋܯ‬Ͷཤ༽ͤΖ͞ͳͲߓਭ༩଎͹੠ౕ޴৏ʀ੠ౕ֮ฯͶༀཱིͯɿ• ຌ‫Ͳڂݜ‬ͺɾಝͶժ଀Νཤ༽ͪ͢ߓਭླྀྖ؏଎घ๑Ͷ஥໪͢ɾժ଀ΝखಚͤΖΩϟϧ͹ഓ஖͹੏‫ݸ‬ΏɾླྀΗಝ௅ͶΓΕɾߓਭླྀྖࢋఈ͹‫͗ࠫޣ‬୉͚͘͵Ζয়‫Ͳڱ‬͹ଲԢࡨΝ‫ݗ‬౾ͤΖɿ• ࣑ਭ҈સౕ͗૮ଲదͶঘ͠͏஦ঘՑઔͲ΍ఴ֋Ն೵͵ླྀྖ؏଎ٗढ़͹෕‫ٶ‬ͺɾ஦ঘՑઔ͹‫ؽث‬؇ཀྵͳՑઔ‫ܯ‬ժ͹ྈ໚ͲՃ஍͍͗Ζɿ• ౏৏ࠅΉͲࢻ໼Ν߁͝Ζͳɾ୉ՑઔͲ͍ͮͱ΍ླྀྖ؏଎͹࣎‫ؔۯ‬ద͵ືౕͺఁ͚ɾͨ͹͞ͳ͗ɾ୻‫غ‬ద͕Γ;ௗ‫غ‬ద͵ߓਭ͹ଲԢࡨ͹‫ݗ‬౾Νೋ͚͢͢ͱ͏Ζɿ• ۫ରదͶͺɾࢀͯ͹γϔτʖϜΝਬ਒ͤΖɿ
34

1. ΩϟϧϪϱθͶΓΖ‫ش‬Ձึਜ਼ʤޭָద‫ش‬Ձึਜ਼ʥ͹ٗढ़֋൅

Figure 2. Examples of (a) an image taken at a side bank (853 by 480 pixels), (b) a 32 by 32 pixel grid
overlaid on the image, and (c) an ortho-rectified 32 by 32 pixel grid. Quantities depicted using red andblue vectors indicate local resolution for the streamwise and transverse directions near the opposite
side bank and the near side bank, respectively.

௪৙͹ՆࢻԿླྀྖ‫ܯ‬଎ͺࠪ͹Γ͑͵ժ଀ΝͳΖɿ͞ΗΝ‫ش‬Ձึਜ਼ͤΖͳӊ͹ਦ͹Γ͑Ͷࣰ࣯ద͵մ଀ౕ͗รԿͤΖɿԥஇ๏޴Ͷͳ͚ͶӀ͘Ԉͻ͠ΗΖɿSTIVͺ͞͹ԥஇ๏޴ͶӀ͘Ԉͻ͠ΗΖͳ͏͑͞ͳΝյඈͤΖ๏๑ʤͨ͹ͪΌɾ‫͖ڰ‬ΔླྀΗͶดߨͶժ଀ΝࡳӪͤΖࡏͶͺ͞͹఼Ͷঙ͢‫ـ‬Νͯ͜ͱΆ͢͏ʥ

5Frontiers in Water | doi: 10.3389/frwa.2021.700946
Optical ortho-rectification for image-based stream surface flow
observations using a ground camera

Figure 4. The optical system used in this study (left) and the image of the regular grid located in
front of the camera (right).

㉸▷↔Ⅼ䝥䝻䝆䜵䜽䝍䞊䛸䛔䛖〇ရ䛜䛒䜛䠊䛣䜜䛿䠈ቨ㠃䛾┿ୗ䛻⨨䛔䛶䠈ቨ㠃䛻⏬ീ䜢ᢞᙳ䛩䜛䛸䛔䛖䜒䛾䛷䠈㒊ᒇ䛾䝇䝨䞊䝇䜢᭷ຠά⏝䛧䜘䛖䛸䛔䛖䜒䛾䛷䛒䜛䠊䛣䜜䜢ቨ䛷䛿䛺䛟Ỉᖹ㠃䛻౑䛖䛸䛔䛖䛾䛜ᮏ䝃䝤䝔䞊䝬䛾ᇶᮏⓗ䛺䜰䜲䝕䜰䛷䛒䜛䠊
Frontiers in Water | doi: 10.3389/frwa.2021.700946㉸▷↔Ⅼ䝥䝻䝆䜵䜽䝍䞊䜢ศゎ䛧䛶䠈ගᏛ⣔䜢䛸䜚䛰䛩䠄ᕥ䠅䠊䝥䝻䝆䜵䜽䝍䞊䛾ሙྜ䛿ගᏛ⣔䛾ᚋ䜝䛻ᫎീ⣲Ꮚ䛸ග※䛜䛒䜛䠊䛣䜜䜙䛾௦䜟䜚䛻䠈䜲䝯䞊䝆䝉䞁䝃䞊䜢⨨䛔䛶䠈䜹䝯䝷䛸䛧䛶౑䛖䠊䛣䛾⿦⨨䛾┿ṇ㠃䛻䜾䝸䝑䝗䜢⨨䛔䛶᧜ᙳ䛩䜛䛸䠈ྑ䛾⏬ീ䛾䜘䛖䛻䜖䛜䜣䛰⏬ീ䛜䛘䜙䜜䜛䠄ᬑ㏻䛾䜹䝯䝷䛷䛿䜾䝸䝑䝗䛜䛭䛾䜎䜎᧜ᙳ䛥䜜䜛䠅䠊
Frontiers in Water | doi: 10.3389/frwa.2021.700946

250m
m

1.
250m

gr
id0.790 m㉸▷↔Ⅼ䝥䝻䝆䜵䜽䝍䞊䛾≉ᚩ䜢ά䛛䛧䛶䠈ୖ䛾ᅗ䛾䜘䛖䛻ᖹ㠃䛻㓄⨨䛧䛯䜾䝸䝑䝗䜢ᩳ䜑䛛䜙᧜ᙳ䛩䜛䠊
Frontiers in Water | doi: 10.3389/frwa.2021.700946⌧ᆅィ
Frontiers in Water | doi: 10.3389/frwa.2021.700946

ᕥ䛜䠈᧜ᙳ䛧䛯⏬ീ䛷䛒䜚䠈ᩳ䜑䛛䜙᧜ᙳ䛧䛶䛔䜛䛡䛹䠈ᗋ䛻⨨䛔䛯䜾䝸䝑䝗䛿᧜ᙳ⏬ീ䛾ẁ㝵䛷䠈䛰䛔䛯䛔ṇ䛧䛟᧜ᙳ䛥䜜䛶䛔䜛䠊䠄࿘䜚䛾⟽䜔ቨ䛺䛹䛾❧యⓗᙧ≧䛿䜖䛜䜣䛷䛔䜛䠊䠅䛖䜎䛟タ⨨䛩䜜䜀䠈ᚋ䛿㛗䛥䝇䜿䞊䝹䛾⿵ṇ䛰䛡䛩䜜䜀䜘䛔䠊⌧ᆅィ 䜢⪃䛘䜛䛸䠈ከᑡ䛾䜖䛜䜏⿵ṇ䜢๓ᥦ䛸䛧䛯䜋䛖䛜⌧ᐇⓗ䛷ྑ➃䛿䜖䛜䜏⿵ṇ䜢䛧䛯䜒䛾䠊䠄⮬ື䝺䝧䝹䛾䜘䛖䛻ጼໃ䜢ไᚚ䛩䜛䛣䛸䜒୍䛴䛾᪉ྥᛶ䛷䛒䜛䠊䠅
Frontiers in Water | doi: 10.3389/frwa.2021.700946

䛾఩⨨ᅗୖẁ䛜ᥦ᱌ᡭἲ䛾⏬ീ䠈ୗẁ䛜ᚑ᮶䜹䝯䝷䛾⏬ീ䠊ྑഃ䜢䜏䜛䛸䠈ୖẁ䛷䜒䜾䝸䝑䝗䛜䜖䛜䜣䛷䛔䜛䛜䠈ୗẁ䛾ᚑ᮶ᡭἲ䛾䜖䛜䜏ලྜ䛸䛟䜙䜉䜛䛸䠈䜖䛜䜏䛿ᑡ䛺䛔䠊
Frontiers in Water | doi: 10.3389/frwa.2021.700946

ᕥ䛜ᥦ᱌ᡭἲ䛾⤖ᯝ䠈ྑ䛜ᚑ᮶䜹䝯䝷䛾⤖ᯝ䠄୍䛴๓䛾䝨䞊䝆䛾ୖẁ䛾ᣑ኱䠅䠊ᕥഃ䛜ᥦ᱌ᡭἲ䛾⤖ᯝ䠈୰ኸ䛜ᚑ᮶䜹䝯䝷䛾⤖ᯝ䠊

Frontiers in Water | doi: 10.3389/frwa.2021.700946

ᕥ䛜ᥦ᱌ᡭἲ䛾⤖ᯝ䠈ྑ䛜ᚑ᮶䜹䝯䝷䛾⤖ᯝ䠄୍䛴๓䛾䝨䞊䝆䛾ୖẁ䛾ᣑ኱䠅䠊▮༳䛿ᖹᆒὶ㏿䝧䜽䝖䝹䛷䠈⣸Ⰽ䛾䜂䛧ᙧ䛿䠈ὶ㏿ᡂศ䛾ᶆ‽೫ᕪ䜢䛒䜙䜟䛩䠊ྠ䛨ሙᡤ䜢䛸䛳䛶䛔䜛䛡䛹䠈ᶆ‽೫ᕪ䛾ศᕸ䛜㐪䛖䠊ᚑ᮶䜹䝯䝷䛾᪉䛜ᶆ‽೫ᕪ䛜䜔䜔኱䛝䛔䠊䠄ᖹᆒὶ㏿䛿䛒䜎䜚ኚ䜙䛺䛔䠅㐲᪉䛷䛿ᶓ᩿᪉ྥ䛻ὶ㏿䛜䛖䛽䛳䛶䛔䜛䠊䛣䜜䛿ᜍ䜙䛟Ỉ㠃䛾㉳అ䛾ᙳ㡪䛷䛒䜛䠊
Frontiers in Water | doi: 10.3389/frwa.2021.700946

ྑ䛿䠈Ỉ㠃䛾ᶍᵝ䛜䜺䜽䜺䜽䛧䛶䛔䜛䛜䠈ᕥ䛿䛭䛖䛷䜒䛺䛔䠊ᗄఱኚ᥮䛻䜘䜛ゎീᗘపୗ䛾ຠᯝ䛷䛒䜛䠊㏻ᖖ䛿䝢䜽䝉䝹⿵㛫䛻䜘䛳䛶䠈䛺䜑䜙䛛䛺⏬ീ䛻䛺䜛䛾䛷䛣䛾䛣䛸䛻Ẽ䛵䛝䛻䛟䛔䛜䠈᝟ሗᐦᗘ䛜ୗ䛜䛳䛶䛔䜛䛣䛸䛿䝢䜽䝉䝹⿵㛫䛷䛿䛹䛖䛻䜒䛺䜙䛺䛔䠊
Frontiers in Water | doi: 10.3389/frwa.2021.700946

ᶓ᩿ὶ㏿ศᕸ䜢ẚ㍑䛧䛶䜏䜛䛸䠈䛒䜎䜚ኚ䜙䛺䛔䠊
Frontiers in Water | doi: 10.3389/frwa.2021.700946

ΉͳΌ• ‫ش‬Ձึਜ਼Νޭָ‫Ͳܧ‬ଲԢͤΖͳմ଀ౕ͹໲ୌΝ؉࿪Ͳ͘Ζ• մ଀ౕ͹Ӫ‫ڻ‬ͺ؉࿪͠ΗΖ͗ɾฑ‫ླྀۋ‬ଐͺ͍ΉΕรΔ͵͏ɿรಊ‫ౕͬ͗ک‬Βͮͳঘ͚͠͵Ζɿ– รಊ‫ౕک‬ͺਭ਄Ώන໚ླྀଐ͹ߏਜ਼‫਼݀ܐ‬ఈ͹ͪΌ͹৚ๅͳ͢ͱԢ༽͗Ն೵Ͳ͍Ζɿ• ਭ໚‫ܙ‬͹ً෮͹Ӫ‫ڻ‬ͺ͹͞Ζɿ• ਭ໚‫ܙ‬͹ً෮͹Ӫ‫ڻ‬͹ଲॴͶͯ͏ͱͺɾ෵਼ֱౕ͖Δժ଀ΝࡳӪ͢ͱɾ࠹ঘ್৒దͶॴཀྵͤΖ๏๑ʤTsubaki, Meas. Sci.
Technol. 2020ɾγϔτʖϜ2)͗Ҳͯ͹๏๑• ਭ໚‫ܙ‬͹ً෮͹Ӫ‫ڻ‬Ν‫͓ͥߡͳࠫޣ‬Ͷɾً෮͹ηίʖϩ͖Δɾਭ਄ΏՑজ͹য়ସ͵ʹΝྪਬͤΖͳ͏͑๏޴੓΍॑གྷ

2. ෵਼ΩϟϧΝૌΊ߻Κͦͪ৿ͪ͵؏଎घ๑͹֋൅
Ryota Tsubaki, 2020, Multi-camera large-scale particle image velocimetry, Measurement Scienceand Technology, Volume 31, Number 8, 084004, doi: 10.1088/1361-6501/ab85d518‫خ‬ຌద͵Π΢υΠ• ̏হͲͺɾΩϟϧϪϱθ͹޽෋Ͳɾժ଀͹dմ଀ౕb͹෈‫ۋ‬Ҳ੓Νଲॴͪ͢ɿ• ̐হͲͺɾ෵਼͹ΩϟϧͲࡳӪ͢ɾͨΗͩΗ͹ժֱͲ૮ଲదͶժ଀͗߶෾մ೵Ͳ͍Εɾ߶੠ౕ͵‫ܯ‬଎͗‫غ‬ଶͲ͘Ζ๏޴͹ଐౕ੔෾Ν࢘͏ʤӊਦ͹ྭͲͺaiͳai+1ʥΝ࢘ͮͱɾଐౕϗέφϩbΝ
ࢋఈͤΖɿ

ਦ2.4. յ఺ԃ൭͹ಊժ͖Δ͹γϱϕϩժ଀. ௜‫ܚ‬0.25m͹ԃ൭Ͷฑ‫׊‬Կͪ͢ΪΤεΠϱό΢θϏνʖϱΝహΕ෉͜Ήͪ͢. ԃ൭ͺԃ൭͹ԾͶઅ஖͠Ηͪࣅऄ෉͘ుಊ‫ؽ‬ͶΓΕҲఈ͹ֱଐౕͲյ఺ͤΖ.

Forward/backward direction

Depression angle 3.9°̲̲
5.5°̲̲
9.2°̲̲

Ĺ&LUFXODUGLVNURWDWHGE\a geared motor.

ᅗ ࣋ࢡࢺࣝ b ࡜ ai ࡢ㛵ಀ
Tsubaki, Meas. Sci. Technol. 31, 084004, 䠄2020䠅

Rotating direction

19

Transverse direction

Tsubaki, Meas. Sci. Technol. 31, 084004, 䠄2020䠅

20

Rotating direction

Original velocityTransverse component
1 (1/s)y/r=1

Tsubaki, Meas. Sci.
Technol. 31, 084004,
䠄2020䠅

ਦ2.8. 45˅ͳ90˅͹ϘΠ͖Δ࠸ߑ੔͠Ηͪ2࣏‫ݫ‬͹ଐౕ෾ාͳླྀΗ৖y/r=1

y/r=-1x/r=-1

PIV single view
PIV reconstructed 0°-90°
PIV reconstructed 0°-45°
1 (1/s)x/r=1

Tsubaki, Meas. Sci.
Technol. 31, 084004,
䠄2020䠅

Pair of 90° different angle
Pair of 45° different angle(a) 45˅ͳ90˅͹ֱౕ͗ҡ͵
Ζ2ૌ͹Ωϟϧ͹ໝࣞద͵ฑ໚ਦ(b) ‫ݫ‬͹ଐౕ෾ාʤࡋ͏ഃતϗέφϩʥ͖Δபड़͠Ηͪԥ๏޴ଐౕ੔෾ʤଢ͏ࣰતϗέφϩʥ͹෾ා

ਦ2.6. 45˅ͳ90˅͹ֱౕ͹ϘΠΝࡠΖΩϟϧ͹ૌΊ߻Κͦʤaʥͳ,பड़͠Ηͪԥ๏޴͹ଐౕ੔෾෾ාʤbʥ
21

ਦ2.9. १‫ݩࣰླྀ؂‬͹ιρφΠρϕ. Angle 1 ͳAngle
2 ͹၈ֱͺͨΗͩΗ༁18˅ͳ༁14˅Ͳ͍ͮͪ.

Tsubaki, Meas. Sci. Technol. 31, 084004, 䠄2020䠅

23

y/r=-1x/r= 1

22x/r=1

ਦ2.10. ৏͖ΔࡳӪͪ͢ժ଀ʤ੼໾һʥ, Angle 1ʤ੪໾һ, ਦ͹Ծ͖ΔࡳӪͪ͢ժ଀ʥ, Angle 2ʤྚ໾һ, ӊ͖ΔࡳӪͪ͢ժ଀ʥ, Angle
1ͳAngle 2͖Δ࠸ߑ੔ͪ͢ଐౕʤΨϪϱζ໾һʥ͹ླྀଐϗέφϩ.

Tsubaki, Meas.
Sci. Technol. 31,084004, 䠄2020䠅

24

ਦ2.13. ઔ‫͖؝‬ΔಚΔΗͪ
ʤaʥ2ͯ͹ࢻ໼ֱ͹2࣏‫ݫ‬ଐౕ෾ා, ͕Γ;ʤbʥ৏‫ࢻى‬໼ֱ͹2࣏‫ݫ‬ଐౕ͹ԥ๏޴ଐౕ੔෾Νபड़͢࠸ߑ஛ͪ͢ଐౕ෾ා (ഐ‫ࣺܢ‬ਇड़ఱ:ࠅౖஏཀྵӅϙʖϞϘʖζʥᅗ 㻞㻚㻝㻝㻚㻌㻟䛴䛾㏿ᗘศᕸ䛾Ỵᐃಀᩘ㻔㻾㻞㻕ᅗ㻞㻚㻝㻞㻚㻌㻟䛴䛾㏿ᗘศᕸ䛻ᑐ䛩䜛㏿ᗘ᪉ྥ䛾㻾㻹㻿㻱䠄ᖹᆒ஧஌ㄗᕪ䠅
Tsubaki, Meas. Sci. Technol. 31, 084004, 䠄2020䠅

25

Tsubaki, Meas. Sci. Technol. 31, 084004, 䠄2020䠅26

ຌহ͹ΉͳΌࠕ‫ޛ‬͹ఴ֋1ɿ੠ౕͶΓΖ॑Ί෉͜• ෵਼͹ࢻ໼ֱ͖ΔಚΔΗͪժ଀ΓΕಚͪఁ੠ౕ͹ଐౕ෾ාυʖνΝૌΊ߻Κͦ, ΓΕ੠ౕ͹߶͏2࣏‫ݫ‬ଐౕ෾ාΝ࠸ߑ
੔ͤΖ৿͢͏๏๑Ν఑Ҍͪ͢.

• ఑Ҍघ๑ͺεϱϕϩͲ͍Ε, ͏͚͖ͯ͹൅ఴ͹༪ஏ͍͗Ζɿ• Ήͥͺɾఁ၈ֱ͖ΔಚΔΗͪժ଀ͶLSPIVΝన༽͢ͱಚ
ΔΗͪ݃Վ͹෈͖֮͠Ͷ‫ͱؖ͢‬, ͠Δ͵Ζ‫ેخ‬ద͵‫ݗ‬౾ͶΓΕཀྵմΝ਄ΌΖ͞ͳ͗චགྷͲ͍Ζ.

• ߸ରյ఺ԃ൭ࣰ‫ͳݩ‬१‫ݩࣰླྀ؂‬͹ͨΗͩΗͲɾఁ၈ֱժ଀
͖Δࢋड़͠ΗΖଐౕ෾ා͹‫ࠫޣ‬͹‫خ‬ຌద͵ಝ੓Ν௒΄ͪ.
• ఑Ҍघ๑Ν, ၈ֱ͗ඉ৙Ͷঘ͠͏ͪΌͶɾඬ६ద͵LSPIVͲͺླྀΗ͹ಝ௅͗͑Ή͚பड़Ͳ͘͵͏‫ݳ‬ஏ؏଎Ͳ͓ΔΗͪժ଀Ͷన༽ͪ͢. ఑Ҍघ๑Ν༽͏Ζ͞ͳͲ, ླྀΗ͹ಝ௅Νபड़ͤΖ͞ͳͶ੔ޯͪ͢.

• ͞͹Γ͑͵ఈྖద͵෈͖֮͠͹඲ՃͶ‫͘Ͱخ‬, ΓΕ߶ౕͲ‫ݐ‬࿜͵ଐౕ৖࠸ߑ੔๑͗֋൅Ͳ͘Ζͳߡ͓ΔΗΖ.

2728

ࠕ‫ޛ‬͹ఴ֋2ɿॢؔ஍ͳSTIV• ຌহͲͺ, ฑ‫ۋ‬ଐౕ৖ΝಚΖ͞ͳͶ঱఼Ν౲ͱͪ.
͖͢͢, ఑Ҍघ๑ͺ, ฑ‫ۋ‬ଐౕ৖ͫ͜Ͳ͵͚ɾॢ࣎ଐౕ෾ා͹෰‫ݫ‬΍‫ݬ‬ཀྵదͶͺՆ೵Ͳ͍Ζ.

3. ՆࢻԿߓਭླྀྖ؏଎༽͹ηϜʖφϓΧϱΠϕϨ֋൅• LSPIV͹େΚΕͶ΍ͳ΍ͳҲଐౕ੔෾Νபड़ͤΖSTIVΝཤ༽ͪ͢෵਼ΩϟϧΠϕϫʖο΍, ༙๮͵‫ݜ‬‫ڂ‬͹๏޴੓͹Ҳͯͳߡ͓Ζɿ

29

30

Open to the publicࢀͯ͹‫خ‬ຌժ໚Apple App Store䛒䜛䛔䛿Google PlayStore䛷LSPIV䛸ධຊᕥ䛛䜙䝥䝺䝡䝳䞊⏬㠃䠈タᐃ⏬㠃䠈ゎㄝ⏬㠃ᕥྑ䛾䝇䝽䜲䝥᧯స䛷⏬㠃䛜㑄⛣ᕥ䛾䝥䝺䝡䝳䞊⏬㠃䛾ሙྜ䛿[Mailsetting]䝪䝍䞁䛷䜒㑄⛣ྍ⬟୰ኸୗ䛻䛒䜛୕䛴䛾୸䜢䜽䝸䝑䜽䛧䛶䜒㑄⛣ྍ⬟3132

ඬ߶෾ාυʖνͳΨϩλժ଀͹ξΤϱϫʖχϕϪϑϣʖժ໚ฎ⌮᪉ἲ䛾䝇䜲䝑䝏⩌DEM䛾䝎䜴䞁䝻䞊䝗䜸䝹䝋⏬ീ䛾䝥䝺䝡䝳䞊䜹䝯䝷䛾䝥䝺䝡䝳䞊䜲䝯䞊䝆䝸䜰䝹䝍䜲䝮ฎ⌮䛾䝥䝺䝡䝳䞊䜲䝯䞊䝆䝁䝬䞁䝗䝪䝍䞁⩌䛸䝟䝷䝯䞊䝍䞊⾲♧ᯟ䜸䝹䝋⏬ീ䛾䝎䜴䞁䝻䞊䝗33Ψϩλժ଀Ν༽͏ͪ࠴ඬ௒੖ਦ3.3. અఈͲ͘ΖΩϟϧඬ߶͕Γ;ਭҒઅఈ๏๑h1• Ψϩλժ଀ΝಣΊࠒ΋ͳɾΠϕϨ಼ͲΩϟϧժ଀Ν‫ش‬Ձึਜ਼ͪ݃͢Վ͗ɾΨϩλժ଀৏ͶΨʖώʖϪ΢͠ΗΖɿ• Ωϟϧͳਭ໚ͳ͹߶͠͹‫ࠫޣ‬Ώɾ*36ͶΓΖҒ஖΍ऑ‫ͥױ‬Η͗ΊΔΗΖ৖߻͍͗Ζɿ5HFWLI\η΢ροΝRQͶ͢ͱනࣖ͠ΗΖ)L[%DFNη
΢ροΝRQͶͤΖͳɾ‫ش‬Ձึਜ਼͠Ηͪժ଀͹Ғ஖Ώγ΢θΝηϭ΢
ϕ͕Γ;ϒϱο૤ࡠͲ௒੖ͤΖ͞ͳ͗Ͳ͘Ζɿh2

Zg (DEM)

Datum

Z (GPS,On-line,Direct input)䛣䜜䜎䛷䛿䠈⮬ศ䛷䝕䞊䝍䜢⏝ព䛧䛶䠈䜰䝥䝸䛻ㄞ䜏㎸䜎䛫䜛ᚲせ䛜䛒䛳䛯䠊ᗄఱ⿵ṇ䛥䜜䛯䜹䝯䝷⏬ീWL (Direct input)• υώ΢η͹߶͠ͺGPSͲͺ੠ౕ͗ड़͵͏͹Ͳɾพ౏‫ܯ‬଎ͪ͢ඬ߶Ν༫͓Ζ͖ɾDEM͖Δஏ൭߶͠Νड़͢ͱɾͨ͞Ͷஏ໚͖Δυώ΢η͹߶͠Ν༫͓Ζ͞ͳͲ੠ౕΝ֮ฯͤΖɿ䝎䜴䞁䝻䞊䝗䛧䛯䜸䝹䝋⏬ീ35䝕䝞䜲䝇䛾఩⨨䛜ኚ䜛䛸⮬ືⓗ䛻䜸䝹䝋⏬ീ䜢෌䝎䜴䞁䝻䞊䝗ᗄఱ⿵ṇ䛥䜜䛯⏬ീୖ䜢䝢䞁䝏䛩䜛䛸䠈ᗄఱ⿵ṇ⏬ീ䜢ᣑ኱⦰ᑠ䛷䛝䜛䠊ྠᵝ䛻䝇䝽䜲䝥䛩䜛䛸ᗄఱ⿵ṇ㡿ᇦ䜢䝅䝣䝖䛷䛝䜛䠊䝎䝤䝹䝍䝑䝥䛩䜛䛸䠈ᗄఱ⿵ṇ㡿ᇦ䛜ึᮇ≧ែ䛻ᡠ䜛䠊

36

ਦ3.4. ஏཀྵӅஏਦͲනࣖͪ͢໨ૂઔʀௗྒྷઔ͹ඬ߶෾ාՑઔεϱϛͲDX3738໪ࢨͤͳ͞ΘʁͫΗͲ΍घܲͶՑઔླྀྖ؏଎• અఈߴ໪ΝͲ͘Ζͫ͜‫ݰ‬Δͤɿ– ͨ΍ͨ΍ɾ΋͖͚ͥ͢ΦϧʖགྷҾͳ͵Ζ͞ͳ΍͍Ζ‫ش‬Ձึਜ਼Νυώ΢η͹ιϱγ৚ๅΝ࢘ͮͱࣙಊԿͤΖͳ͏͑͞ͳ͗ɾ
LSPIVΠϕϨ͹࠹॑གྷ͵αϱιϕφͲ͍Ζɿ– ࠕյɾඬ߶ΏΨϩλժ଀Ν६ඍͦͥͶ͓࢘Ζ༹Ͷ͵ͮͪɿ

4. ͕ΚΕͶ• ླྀྖ‫׮‬સͶͯ͏ͱͺஇ໚‫ܙ‬৚ๅ͗՟ୌͲ͍Ζɿ– ਭҒ• Ϥʖδʖ΢ϱνʖϓΥʖηͲଡঙଲԢՆ೵ʤώʖοϡϩਭҒඬʥ– Ցজ߶͠͹෾ා• ALBυʖν͗સࠅదͶεʖϞϪηͶ੖ඍ͠ΗΖ͞ͳͶ‫غ‬ଶɿ• ླྀଐυʖν͖Δਭ਄Ν‫ͤࢋ׷‬Ζ๏޴੓΍॑གྷʤ౏৏ࠅΏ୉Ցઔʥɿ
3940ΉͳΌ఑‫ݶ‬• ժ଀Νཤ༽ͪ͢ߓਭླྀྖ؏଎घ๑Ͷͯ͏ͱɾࢀͯ͹γϔτʖϜΝઅఈ͢ͱ‫֋ڂݜ‬൅Νࣰࢬͪ͢ɿ• ʹ͞Ͳ΍घܲͶླྀྖ‫ܯ‬଎Νߨ͑ͪΌͶɾԥஇ໚‫ܙ‬ʤՑজ‫ܙ‬য়ʥ͹৚ๅ͗චགྷͲ͍Ζ͗ɾʹ͞Ͳ΍ͫΗͲ΍ΠέιηͲ͘ΖΓ͑͵য়‫ڱ‬Ͷͺ͵͏ɿ• ժ଀Ν༽͏ͪླྀྖ؏଎Ͷ͕͜Ζɾ‫ش‬Ձึਜ਼͹߶ౕԿͳฑ໚ླྀଐ෾ා͹߶੠ౕ͵खಚΝ࣢ͳ͢ͱɾ‫ش‬Ձึਜ਼͹໲ୌΝմভͤΖٗढ़֋൅ʤγϔτʖϜ̏ɾ̐ʥͳɾླྀྖ؏଎Ν؈สͶߨ͑Πϕϫʖο͹఑ҌʤγϔτʖϜ̑ʥΝ਒Όͪɿ• Ցজ‫ܙ‬য়Ν‫؜‬Όͪඬ߶෾ා͹੖ඍͳޮ֋͗ଶͪΗΖɿ– ‫ڗ‬௾ΕΏऺӣɾϪζϡʖ͵ʹ΃͹ཤ༽ͳιρφͲޮ֋ͤΖͳΓ͏ͫΘ͑ɿ– ෵਼ΩϟϧΝ༽͏ΖγϔτʖϜ̐͹घ๑ͺɾηϜʖφϓΧϱΝཤ༽ͤΖγϔτʖϜ̑͹ΠϕϫʖοͶ౹߻Ն೵Ͳ͍ΖʤࣰૹͺΉͫͲ͘ͱ͏͵͏ʥɿ• Ցজ‫ܙ‬য়ͨ͹΍͹΍घܲͶ‫ܯ‬଎Ͳ͘Ζٗढ़͹֋൅ʤύʖχˏλϓφʥͳ෕‫ٶ‬΍ଶ๮͠ΗΖɿ4142