Planet SkySat Public Ortho Imagery, Multispectral
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說明
這項資料是 2015 年為實驗性「Skybox for Good Beta」計畫，以及各種危機應變事件和其他幾個專案收集而來，資料來源為 Planet Labs Inc. 的 SkySat 衛星。資料可透過 5 波段多光譜/全色集合和全色銳化 RGB 集合取得。
每張圖片的素材資源 ID 都包含擷取日期和時間，例如圖片 s01_20150304T080608Z 是在 2015 年 3 月 4 日 08:06 Zulu (世界標準時間) 擷取。詳情請參閱「Planet Imagery Product Specifications」，並前往「Planet Imagery and Archive」網站。
這個多光譜/全色集合包含五個 16 位元頻帶的圖片，這些頻帶是從原始 12 位元資料向上偏移而來。B、G、R 和近紅外線波段的解析度約為每像素 2 公尺，而全色波段的解析度約為 0.8 公尺 (非天底影像的解析度接近 1 公尺)。
頻帶
頻帶
| 名稱 |
最小值 |
最大值 |
像素大小 |
波長 |
說明 |
B |
878*
|
62089*
|
2 公尺
|
450-515nm |
藍色 |
G |
341*
|
62007*
|
2 公尺
|
515-595nm |
綠色 |
R |
107*
|
63393*
|
2 公尺
|
605-695nm |
紅色 |
N |
16*
|
62874*
|
2 公尺
|
740-900nm |
近紅外線 |
P |
16*
|
65520*
|
0.8 公尺
|
450-900nm |
Panchromatic |
* 預估最小值或最大值
圖片屬性
圖片屬性
| 名稱 |
類型 |
說明 |
| catalogID |
STRING |
與單一收藏事件相應的專屬目錄 ID，在所有三個偵測器中都相同。 |
| collectionEndTime |
STRING |
ISO 8601 收集結束時間 (世界標準時間)。 |
| collectionStartTime |
STRING |
ISO 8601 集合開始時間 (世界標準時間)。 |
| collectionType |
STRING |
「Strip」、「Point」、「Area」或「Path」。 |
| productType |
STRING |
識別產品層級的產品類型 (「正射影像」)。 |
| productionID |
STRING |
這個產品版本的 ID，由 Singer/TileMill 產生。 |
| productionSystemVersion |
STRING |
不適用 |
| resamplingMethod |
STRING |
用於內插像素值的方法。 |
| satelliteAzimuthAngleMax |
DOUBLE |
收集作業期間的衛星方位角上限 (以度為單位)。 |
| satelliteAzimuthAngleMean |
DOUBLE |
收集資料期間的平均衛星方位角 (以度為單位)。 |
| satelliteAzimuthAngleMin |
DOUBLE |
收集資料時的衛星方位角下限 (度)。 |
| satelliteElevationAngleMax |
DOUBLE |
收集資料時的衛星仰角上限 (度)。 |
| satelliteElevationAngleMean |
DOUBLE |
收集資料時的平均衛星仰角 (以度為單位)。 |
| satelliteElevationAngleMin |
DOUBLE |
收集資料時的衛星仰角下限 (以度為單位)。 |
| satelliteName |
STRING |
識別太空船的專屬名稱。 |
| snaptoAlignmentConfidence |
DOUBLE |
不適用 |
| snaptoReferenceAssets |
STRING |
不適用 |
| solarAzimuthAngle |
DOUBLE |
收集資料時的太陽方位角。 |
| solarElevationAngle |
DOUBLE |
收集資料時的太陽仰角。 |
| terrainBlendEpoch |
DOUBLE |
不適用 |
使用條款
使用條款
這項資料集是依據創用 CC 姓名標示授權(CC-BY-4.0) 公開提供。
引用內容
© <year> Planet Labs Inc.
使用 Earth Engine 探索
程式碼編輯器 (JavaScript)
var dataset = ee.ImageCollection('SKYSAT/GEN-A/PUBLIC/ORTHO/MULTISPECTRAL');
var falseColor = dataset.select(['N', 'G', 'B']);
var falseColorVis = {
min: 200.0,
max: 6000.0,
};
Map.setCenter(-70.892, 41.6555, 15);
Map.addLayer(falseColor, falseColorVis, 'False Color');
在程式碼編輯器中開啟
[null,null,[],[[["\u003cp\u003eThis dataset features SkySat satellite imagery collected between July 3, 2014, and December 24, 2016, for the "Skybox for Good Beta" program, crisis response, and other projects.\u003c/p\u003e\n"],["\u003cp\u003eImagery is available in both 5-band Multispectral/Pan and Pansharpened RGB collections, with resolutions around 2m for Multispectral and 0.8m for Panchromatic.\u003c/p\u003e\n"],["\u003cp\u003eBands include Blue, Green, Red, Near-IR, and Panchromatic, provided as 16-bit data (shifted from original 12-bit).\u003c/p\u003e\n"],["\u003cp\u003eThis dataset is made available publicly under the Creative Commons by Attribution license (CC-BY-4.0), with attribution to Planet Labs Inc.\u003c/p\u003e\n"],["\u003cp\u003eUsers can explore and analyze this dataset within Google Earth Engine, a platform for petabyte-scale scientific analysis and visualization of geospatial datasets.\u003c/p\u003e\n"]]],[],null,["# Planet SkySat Public Ortho Imagery, Multispectral\n\nDataset Availability\n: 2014-07-03T00:00:00Z--2016-12-24T00:00:00Z\n\nDataset Provider\n:\n\n\n [Planet Labs Inc.](https://www.planet.com/)\n\nTags\n:\n[highres](/earth-engine/datasets/tags/highres) [multispectral](/earth-engine/datasets/tags/multispectral) [pansharpened](/earth-engine/datasets/tags/pansharpened) [planet](/earth-engine/datasets/tags/planet) [satellite-imagery](/earth-engine/datasets/tags/satellite-imagery) [skysat](/earth-engine/datasets/tags/skysat) \n\n#### Description\n\nThis data from Planet labs Inc. SkySat satellites was collected for\nthe experimental \"Skybox for Good Beta\" program in 2015, as well as for\nvarious crisis response events and a few other projects. The data is\navailable in both a 5-band Multispectral/Pan collection, and a Pansharpened\nRGB collection.\n\nEach image's asset ID contains the acquisition date and time, for\nexample, image s01_20150304T080608Z was acquired on March 4, 2015 at\n08:06 Zulu (UTC). For more information, please see the\n[Planet Imagery Product Specifications](https://www.planet.com/products/satellite-imagery/files/Planet_Combined_Imagery_Product_Specs_December2017.pdf)\nand visit the\n[Planet Imagery and Archive](https://www.planet.com/products/planet-imagery/) site.\n\nThis Multispectral/Pan collection contains images with five 16-bit bands\nshifted up from the original 12-bit data. The B, G, R, and Near-IR bands\nhave a resolution of approximately 2m per pixel, while the Pan band is\napproximately 0.8m resolution (closer to 1m for off-nadir images).\n\n### Bands\n\n**Bands**\n\n| Name | Min | Max | Pixel Size | Wavelength | Description |\n|------|-------|---------|------------|------------|--------------|\n| `B` | 878\\* | 62089\\* | 2 meters | 450-515nm | Blue |\n| `G` | 341\\* | 62007\\* | 2 meters | 515-595nm | Green |\n| `R` | 107\\* | 63393\\* | 2 meters | 605-695nm | Red |\n| `N` | 16\\* | 62874\\* | 2 meters | 740-900nm | Near-IR |\n| `P` | 16\\* | 65520\\* | 0.8 meters | 450-900nm | Panchromatic |\n\n\\* estimated min or max value\n\n### Image Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|-----------------------------|--------|------------------------------------------------------------------------------------------------|\n| catalogID | STRING | Unique catalog ID corresponding to a single collection event; same across all three detectors. |\n| collectionEndTime | STRING | ISO 8601 collection end time (UTC). |\n| collectionStartTime | STRING | ISO 8601 collection start time (UTC). |\n| collectionType | STRING | 'Strip', 'Point', 'Area', or 'Path'. |\n| productType | STRING | Product type identifying the product level ('Orthorectified Imagery'). |\n| productionID | STRING | ID of this version of this product, generated by Singer/TileMill. |\n| productionSystemVersion | STRING | N/A |\n| resamplingMethod | STRING | The method used for interpolated pixel values. |\n| satelliteAzimuthAngleMax | DOUBLE | Maximum satellite azimuth angle over the collection (degrees). |\n| satelliteAzimuthAngleMean | DOUBLE | Mean satellite azimuth angle over the collection (degrees). |\n| satelliteAzimuthAngleMin | DOUBLE | Minimum satellite azimuth angle over the collection (degrees). |\n| satelliteElevationAngleMax | DOUBLE | Maximum satellite elevation angle over the collection (degrees). |\n| satelliteElevationAngleMean | DOUBLE | Mean satellite elevation angle over the collection (degrees). |\n| satelliteElevationAngleMin | DOUBLE | Minimum satellite elevation angle over the collection (degrees). |\n| satelliteName | STRING | Unique name identifying the spacecraft. |\n| snaptoAlignmentConfidence | DOUBLE | N/A |\n| snaptoReferenceAssets | STRING | N/A |\n| solarAzimuthAngle | DOUBLE | Solar azimuth angle at the time of collection. |\n| solarElevationAngle | DOUBLE | Solar elevation angle at the time of collection. |\n| terrainBlendEpoch | DOUBLE | N/A |\n\n### Terms of Use\n\n**Terms of Use**\n\nThis dataset is made available publicly under the Creative Commons by\nAttribution license(CC-BY-4.0).\n\n### Citations\n\nCitations:\n\n- © \\\u003cyear\\\u003e Planet Labs Inc.\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('SKYSAT/GEN-A/PUBLIC/ORTHO/MULTISPECTRAL');\nvar falseColor = dataset.select(['N', 'G', 'B']);\nvar falseColorVis = {\n min: 200.0,\n max: 6000.0,\n};\nMap.setCenter(-70.892, 41.6555, 15);\nMap.addLayer(falseColor, falseColorVis, 'False Color');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/SKYSAT/SKYSAT_GEN-A_PUBLIC_ORTHO_MULTISPECTRAL) \n[Planet SkySat Public Ortho Imagery, Multispectral](/earth-engine/datasets/catalog/SKYSAT_GEN-A_PUBLIC_ORTHO_MULTISPECTRAL) \nThis data from Planet labs Inc. SkySat satellites was collected for the experimental \"Skybox for Good Beta\" program in 2015, as well as for various crisis response events and a few other projects. The data is available in both a 5-band Multispectral/Pan collection, and a Pansharpened RGB collection. Each image's ... \nSKYSAT/GEN-A/PUBLIC/ORTHO/MULTISPECTRAL, highres,multispectral,pansharpened,planet,satellite-imagery,skysat \n2014-07-03T00:00:00Z/2016-12-24T00:00:00Z \n-70 -180 53 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://www.planet.com/)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/SKYSAT_GEN-A_PUBLIC_ORTHO_MULTISPECTRAL)"]]
