2020 EU Sentinel 위성데이터 전송속도 비교 사례

크레오넷의 경우, 유럽 scihub.copernicus.eu 로부터 1.5GB의 데이터를 받는데 73초가 소요됨. (20.5MB/s = 164Mbps)
국내에서 데이터를 공유하는 경우, 회선의 최대 대역폭에 가까운 속도로 전송이 가능함.




전송 속도출처
강원대 학내망

3.2 Mbps

(400 KB/s)

2019.07. 이OO 교수님 랩 방문
세종대 학내망

32Mbps

(4 MB/s)

2019.08. 김OO 교수님 메일 회신
KAIST 학내망

9.2Mbps

(1.15 MB/s)

2020.07. 측정
KREONET

164 Mbps

(20.5 MB/s)

2020.07. 측정 (서울시립대 성능측정서버)


강원대

강원대 학내망

KAIST

전송경로 : KAIST - KOREN(한국-싱가포르) - GEANT (네덜란드-프랑스-독일)

속도 저하 원인 : KAIST 내부 방화벽

KAIST 학내망
$ wget --no-check-certificate --user=$USER --password=$PASS -O sentinel.dat \ 
  "https://scihub.copernicus.eu/dhus/odata/v1/Products('bb4e9fb2-bae2-4b41-a76e-fec900c51b2a')/\$value"
...
--2020-07-30 09:05:38--
...
2020-07-30 09:27:28 (1.15 MB/s) - `sentinel.dat' saved [1578189166/1578189166]


KISTI / KREONET

전송경로 : KISTI - KREONET(한국-시카고-텍사스) - Internet2(미국) - GEANT (영국-프랑스-독일)

KREONET
$ wget --no-check-certificate --user=$USER --password=$PASS -O sentinel.dat \ 
  "https://scihub.copernicus.eu/dhus/odata/v1/Products('bb4e9fb2-bae2-4b41-a76e-fec900c51b2a')/\$value"
...
--2020-07-30 17:05:54--
...
2020-07-30 17:07:09 (20.5 MB/s) - ‘sentinel.dat’ saved [1578189166/1578189166]


참고

EU 코페르니쿠스 데이터 저장소 회원가입
https://scihub.copernicus.eu/dhus/#/home

위성 저장소 데이터 다운로드 스크립트
https://scihub.copernicus.eu/twiki/do/view/SciHubUserGuide/BatchScripting
https://scihub.copernicus.eu/twiki/pub/SciHubUserGuide/BatchScripting/dhusget.sh

스크립트 사용법
./dhusget.sh -help
스크립트 사용 예제 
./dhusget.sh -m Sentinel-1 -i SAR -t 24 -T SLC -o all
================================================================================================================
dhusget version: 0.3.8
Type 'dhusget.sh -help' for usage information
================================================================================================================
LOGIN
'-d option' not specified.
Default Data Hub Service URL is:
https://scihub.copernicus.eu/dhus
Enter username: 
Enter password:
================================================================================================================
SEARCH QUERY OPTIONS
'-m option' mission is set to Sentinel-1.
'-i option' instrument is set to SAR.
'-t option' is set to 24. Search is performed for all products ingested in the last 24 hours.
 Sensing date options not specified ('-S', '-E').
'-c option' not specified. No specified Area of Interest. Search is performed on the whole globe.
'-T option' product type is set to SLC.
SEARCH RESULT OPTIONS
'-l option' not specified. Default Maximum Number of Results per page is 25.
'-P option' not specified. Default Page Number is 1.
'-q option' not specified. OpenSearch results are stored by default in ./OSquery-result.xml.
'-C option' not specified. List of results are stored by default in the CSV file ./products-list.csv.
DOWNLOAD OPTIONS
'-o option' is set to all. Downloads are active. By default product downloads are stored in ./PRODUCT unless differently specified by the '-O option'.
'-N option' not specified. By default the number of wget download retries is 5.
'-R option' not specified. By default the list of products failing the MD5 integrity check is saved in ./failed_MD5_check_list.txt.
'-n option' not specified. By default the number of concurrent downloads (either products or manifest files) is 2.
================================================================================================================
HTTP request done: https://scihub.copernicus.eu/dhus/search?q= platformname:Sentinel-1 AND instrumentshortname:SAR AND producttype:SLC AND ingestiondate:[NOW-24HOURS TO NOW] &rows=25&start=0
--2020-07-30 09:20:51--
HTTP request sent, awaiting response... 200 OK
Length: unspecified [application/xml]
Saving to: ‘OSquery-result.xml’
2020-07-30 09:20:53 (133 KB/s) - ‘OSquery-result.xml’ saved [73416]

     1	Displaying 0 to 24 of 952 total results. Request done in 0.054 seconds.
     1	https://scihub.copernicus.eu/dhus/odata/v1/Products('00f6c0b5-28c8-4ed6-b733-9aac9619cae0')
     1	S1A_WV_SLC__1SSV_20200729T210223_20200729T211058_033674_03E721_ABF1
     2	https://scihub.copernicus.eu/dhus/odata/v1/Products('27525e4f-bc45-4e92-853b-a960161c5647')
     2	S1B_IW_SLC__1SDV_20200729T205618_20200729T205648_022691_02B11C_429C
    ....
    24	https://scihub.copernicus.eu/dhus/odata/v1/Products('822ce76f-57e1-43da-98c5-7c07619860f2')
    24	S1B_IW_SLC__1SDV_20200729T185715_20200729T185742_022690_02B112_DAEE
    25	https://scihub.copernicus.eu/dhus/odata/v1/Products('18b95680-a91e-4073-9ced-5f88175a42e2')
    25	S1B_IW_SLC__1SDV_20200729T185740_20200729T185807_022690_02B112_F1BD
Downloading manifest S1A_WV_SLC__1SSV_20200729T210223_20200729T211058_033674_03E721_ABF1 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('00f6c0b5-28c8-4ed6-b733-9aac9619cae0')/Nodes('S1A_WV_SLC__1SSV_20200729T210223_20200729T211058_033674_03E721_ABF1.SAFE')/Nodes('manifest.safe')/$value
Downloading manifest S1B_IW_SLC__1SDV_20200729T205618_20200729T205648_022691_02B11C_429C from link https://scihub.copernicus.eu/dhus/odata/v1/Products('27525e4f-bc45-4e92-853b-a960161c5647')/Nodes('S1B_IW_SLC__1SDV_20200729T205618_20200729T205648_022691_02B11C_429C.SAFE')/Nodes('manifest.safe')/$value
Manifest S1B_IW_SLC__1SDV_20200729T205618_20200729T205648_022691_02B11C_429C successfully downloaded at  60.1 MB/s
Downloading manifest S1B_IW_SLC__1SDV_20200729T205711_20200729T205738_022691_02B11C_F50B from link https://scihub.copernicus.eu/dhus/odata/v1/Products('9661c4c2-e0c7-4b2a-8ca4-8be667485b6d')/Nodes('S1B_IW_SLC__1SDV_20200729T205711_20200729T205738_022691_02B11C_F50B.SAFE')/Nodes('manifest.safe')/$value
Manifest S1A_WV_SLC__1SSV_20200729T210223_20200729T211058_033674_03E721_ABF1 successfully downloaded at  186 KB/s
Downloading manifest S1B_IW_SLC__1SDV_20200729T205646_20200729T205713_022691_02B11C_5F18 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('21f24126-fa60-48ff-826d-1e666823b4fb')/Nodes('S1B_IW_SLC__1SDV_20200729T205646_20200729T205713_022691_02B11C_5F18.SAFE')/Nodes('manifest.safe')/$value
Manifest S1B_IW_SLC__1SDV_20200729T205711_20200729T205738_022691_02B11C_F50B successfully downloaded at  130 MB/s
Downloading manifest S1B_IW_SLC__1SDV_20200729T205736_20200729T205754_022691_02B11C_A336 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('502f2a13-28b5-4774-ad15-8a3fa0041dd8')/Nodes('S1B_IW_SLC__1SDV_20200729T205736_20200729T205754_022691_02B11C_A336.SAFE')/Nodes('manifest.safe')/$value
Manifest S1B_IW_SLC__1SDV_20200729T205646_20200729T205713_022691_02B11C_5F18 successfully downloaded at  61.3 MB/s
Downloading manifest S1A_WV_SLC__1SSV_20200729T192335_20200729T194058_033673_03E719_3B3C from link https://scihub.copernicus.eu/dhus/odata/v1/Products('9efc3ae1-107e-4dd9-9fa2-b52533d69ea7')/Nodes('S1A_WV_SLC__1SSV_20200729T192335_20200729T194058_033673_03E719_3B3C.SAFE')/Nodes('manifest.safe')/$value
Manifest S1B_IW_SLC__1SDV_20200729T205736_20200729T205754_022691_02B11C_A336 successfully downloaded at  79.5 MB/s
Downloading manifest S1A_IW_SLC__1SDV_20200729T201610_20200729T201639_033674_03E71E_6046 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('db0cd2cd-2b85-4d1e-8895-7fdb8a2d4b35')/Nodes('S1A_IW_SLC__1SDV_20200729T201610_20200729T201639_033674_03E71E_6046.SAFE')/Nodes('manifest.safe')/$value
Manifest S1A_IW_SLC__1SDV_20200729T201610_20200729T201639_033674_03E71E_6046 successfully downloaded at  87.5 MB/s
Downloading manifest S1A_IW_SLC__1SDV_20200729T194807_20200729T194837_033674_03E71A_6D66 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('bc7fe9c4-f186-45b3-94f3-775e86b10629')/Nodes('S1A_IW_SLC__1SDV_20200729T194807_20200729T194837_033674_03E71A_6D66.SAFE')/Nodes('manifest.safe')/$value
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Downloading manifest S1A_IW_SLC__1SDV_20200729T194835_20200729T194903_033674_03E71A_5F9D from link https://scihub.copernicus.eu/dhus/odata/v1/Products('7ddd34f7-1d37-46c1-85f2-28a61f0ba8ca')/Nodes('S1A_IW_SLC__1SDV_20200729T194835_20200729T194903_033674_03E71A_5F9D.SAFE')/Nodes('manifest.safe')/$value
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Downloading manifest S1A_IW_SLC__1SDV_20200729T194950_20200729T195016_033674_03E71A_8A89 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('a6c74911-3621-41e5-b105-88ba9a21bb44')/Nodes('S1A_IW_SLC__1SDV_20200729T194950_20200729T195016_033674_03E71A_8A89.SAFE')/Nodes('manifest.safe')/$value
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Downloading manifest S1A_IW_SLC__1SDV_20200729T194925_20200729T194952_033674_03E71A_ECE0 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('fe4733c8-d945-40e4-a04b-e980dd4d1738')/Nodes('S1A_IW_SLC__1SDV_20200729T194925_20200729T194952_033674_03E71A_ECE0.SAFE')/Nodes('manifest.safe')/$value
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Downloading manifest S1A_IW_SLC__1SDV_20200729T194901_20200729T194927_033674_03E71A_86EF from link https://scihub.copernicus.eu/dhus/odata/v1/Products('f611881a-7217-49c0-a5ea-b792020a2f53')/Nodes('S1A_IW_SLC__1SDV_20200729T194901_20200729T194927_033674_03E71A_86EF.SAFE')/Nodes('manifest.safe')/$value
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Downloading manifest S1B_IW_SLC__1SDV_20200729T192031_20200729T192100_022690_02B116_7DA1 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('4ec96bf6-ea2d-4bf7-b756-18589a7853c0')/Nodes('S1B_IW_SLC__1SDV_20200729T192031_20200729T192100_022690_02B116_7DA1.SAFE')/Nodes('manifest.safe')/$value
Manifest S1A_IW_SLC__1SDV_20200729T194901_20200729T194927_033674_03E71A_86EF successfully downloaded at  130 KB/s
Downloading manifest S1B_IW_SLC__1SDV_20200729T191940_20200729T192008_022690_02B116_5E56 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('03260584-8673-4493-b824-fbfb6b15a239')/Nodes('S1B_IW_SLC__1SDV_20200729T191940_20200729T192008_022690_02B116_5E56.SAFE')/Nodes('manifest.safe')/$value
Manifest S1B_IW_SLC__1SDV_20200729T192031_20200729T192100_022690_02B116_7DA1 successfully downloaded at  86.0 MB/s
Downloading manifest S1B_IW_SLC__1SDV_20200729T192006_20200729T192033_022690_02B116_7E59 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('b4342141-6c0f-4ce9-a0dd-c0ea9bb723a5')/Nodes('S1B_IW_SLC__1SDV_20200729T192006_20200729T192033_022690_02B116_7E59.SAFE')/Nodes('manifest.safe')/$value
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Downloading manifest S1B_IW_SLC__1SDV_20200729T191912_20200729T191942_022690_02B116_C3AE from link https://scihub.copernicus.eu/dhus/odata/v1/Products('ab7d8b8e-7d52-414d-b617-7f65e11f692b')/Nodes('S1B_IW_SLC__1SDV_20200729T191912_20200729T191942_022690_02B116_C3AE.SAFE')/Nodes('manifest.safe')/$value
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Downloading manifest S1B_IW_SLC__1SDV_20200729T185855_20200729T185922_022690_02B112_F141 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('e86b0e1b-bda7-4172-a394-22e52ddec0b3')/Nodes('S1B_IW_SLC__1SDV_20200729T185855_20200729T185922_022690_02B112_F141.SAFE')/Nodes('manifest.safe')/$value
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Downloading manifest S1B_IW_SLC__1SDV_20200729T185920_20200729T185945_022690_02B112_6E13 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('9c5936ab-b417-4949-8e20-c65f28e68799')/Nodes('S1B_IW_SLC__1SDV_20200729T185920_20200729T185945_022690_02B112_6E13.SAFE')/Nodes('manifest.safe')/$value
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Downloading manifest S1B_IW_SLC__1SDV_20200729T185830_20200729T185857_022690_02B112_1C18 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('283e4939-36f5-443f-8dc5-0b361eb0e9be')/Nodes('S1B_IW_SLC__1SDV_20200729T185830_20200729T185857_022690_02B112_1C18.SAFE')/Nodes('manifest.safe')/$value
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Downloading manifest S1B_IW_SLC__1SDV_20200729T185557_20200729T185627_022690_02B112_96A1 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('44764837-acd3-47ec-aa0f-f591059bbfa0')/Nodes('S1B_IW_SLC__1SDV_20200729T185557_20200729T185627_022690_02B112_96A1.SAFE')/Nodes('manifest.safe')/$value
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Downloading manifest S1B_IW_SLC__1SDV_20200729T185650_20200729T185717_022690_02B112_023A from link https://scihub.copernicus.eu/dhus/odata/v1/Products('1fa5fcd1-04c3-43cf-815c-0369186a7b91')/Nodes('S1B_IW_SLC__1SDV_20200729T185650_20200729T185717_022690_02B112_023A.SAFE')/Nodes('manifest.safe')/$value
Manifest S1B_IW_SLC__1SDV_20200729T185624_20200729T185652_022690_02B112_1986 successfully downloaded at  52.7 MB/s
Downloading manifest S1B_IW_SLC__1SDV_20200729T185805_20200729T185832_022690_02B112_B45B from link https://scihub.copernicus.eu/dhus/odata/v1/Products('74d319bb-09f1-4051-b020-0eb12f095fd8')/Nodes('S1B_IW_SLC__1SDV_20200729T185805_20200729T185832_022690_02B112_B45B.SAFE')/Nodes('manifest.safe')/$value
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Downloading manifest S1B_IW_SLC__1SDV_20200729T185715_20200729T185742_022690_02B112_DAEE from link https://scihub.copernicus.eu/dhus/odata/v1/Products('822ce76f-57e1-43da-98c5-7c07619860f2')/Nodes('S1B_IW_SLC__1SDV_20200729T185715_20200729T185742_022690_02B112_DAEE.SAFE')/Nodes('manifest.safe')/$value
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Downloading manifest S1B_IW_SLC__1SDV_20200729T185740_20200729T185807_022690_02B112_F1BD from link https://scihub.copernicus.eu/dhus/odata/v1/Products('18b95680-a91e-4073-9ced-5f88175a42e2')/Nodes('S1B_IW_SLC__1SDV_20200729T185740_20200729T185807_022690_02B112_F1BD.SAFE')/Nodes('manifest.safe')/$value
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Downloading product S1A_WV_SLC__1SSV_20200729T210223_20200729T211058_033674_03E721_ABF1 from link https://scihub.copernicus.eu/dhus/odata/v1/Products('00f6c0b5-28c8-4ed6-b733-9aac9619cae0')/$value
Downloading product S1B_IW_SLC__1SDV_20200729T205618_20200729T205648_022691_02B11C_429C from link https://scihub.copernicus.eu/dhus/odata/v1/Products('27525e4f-bc45-4e92-853b-a960161c5647')/$value
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