This dataset is contains orthorectified imagery from the Advanced Visible and Near Infrared Radiometer type 2 (AVNIR-2) sensor on-board the Advanced Land Observing Satellite (ALOS) "DAICHI".
The AVNIR-2 ORI product was created from AVNIR-2 1B1 data after stereo matching with reference to ALOS's Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM)-derived DSM AW3D30. The orthorectification process used AW3D30 DSM data when available and SRTM (The Shuttle Radar Topography Mission) DSM data otherwise.
该数据集包含来自高级陆地观测卫星 (ALOS)“DAICHI”上的高级可见光和近红外辐射计类型 2 (AVNIR-2) 传感器的正射校正图像。
AVNIR-2 ORI 产品是根据 AVNIR-2 1B1 数据在参照 ALOS 的立体映射全色遥感仪器 (PRISM) 衍生的 DSM AW3D30 进行立体匹配后创建的。正射校正过程在可用时使用 AW3D30 DSM 数据,否则使用 SRTM(航天飞机雷达地形任务)DSM 数据。
Dataset Availability
2006-04-26T00:00:00 - 2011-04-18T00:00:00
Dataset Provider
JAXA Earth Observation Research Center
Collection Snippet
ee.ImageCollection("JAXA/ALOS/AVNIR-2/ORI")
Resolution
10 meters
Bands Table
Name | Description | Min* | Max* |
---|---|---|---|
B1 | Blue (0.42 - 0.50 µm) | 1 | 255 |
B2 | Green (0.52 - 0.60 µm) | 1 | 255 |
B3 | Red (0.61 - 0.69 µm) | 1 | 255 |
B4 | Near-Infrared (0.76 - 0.89 µm) | 1 | 255 |
* = Values are estimated
影像属性:
Name | Type | Description |
---|---|---|
CENTER_ALTITUDE | Double | Satellite alitutude at scene center (km) |
CENTER_FRAME_NUMBER | Double | Frame number of scene center (0000 to 7198) |
CENTER_HEADING_ANGLE | Double | Satellite heading angle including Earth rotation at scene center (radians) |
CENTER_SKEW_ANGLE | Double | Image skew angle at scene center (milli-radians) |
CENTER_SOLAR_AZIMUTH | Double | Azimuth angle of the sun at scene center (°) |
CENTER_SOLAR_ZENITH | Double | Solar elevation (zenith) angle of the sun at scene center (°) |
CENTER_START_TIME | String | Scene center time (UTC). |
INCIDENT_ANGLE | String | Incident angle "SNN.NNN" (S: Incident direction R/L, NN.NNN degrees) |
ORBIT_DIRECTION | String | Orbit direction ("A"/"D": ascending/descending) |
ORBIT_INCLINATION | Double | Nominal satellite orbit inclination (°) |
ORBIT_CYCLE_PERIOD | Double | Nominal satellite orbit cycle period (min) |
ORIENTATION_ANGLE | Double | Angle of the vertical axis of image frame from the map northing axis. |
PROCESSING_DATE | String | Processing date (JST) |
PROCESSING_FACILITY | String | Processing facility. |
PROCESSING_SOFTWARE_VESRION | String | Processing software version. |
PROCESSING_TIME | String | Processing time (JST) |
PRODUCT_ID | String | Product ID e.g: "ABBBCCDE" * A: Observation mode ("O") * BBB: Processing level ("ORI") * CC: Framing ("RF" Geo-reference, "GT", Geo-coded True-north "GM", Geo-coded Map-north), * D: Map projection ("U": UTM, "P": PS) * E: Sensor type ("N": nadir 35km, "F": forward 35km "B": backward 35km "W": nadir 70km) * A: AVNIR-2 |
PRODUCT_NUMBER | Double | Product version number |
RSP_ID | String | RSP ID e.g: "MPPPFFFFSN" * M: Oribit direction ("A": ascending, "D": descending) * PPP: RSP path number (0 to 671) * FFFF: RSP frame number (0000 to 7199) * SN: Scene shift ("-2" to " 2") |
SATELLITE_NAME | String | Satellite name. |
SCENE_ID | String | Scene ID e.g. "AABBBCDDDDDEEEE" * AA: Satellite code ("AL": ALOS) * BBB: Sensor code ("PSM": PRISM, "AV2": AVNIR-2) * C: Sensor type ("N": nadir 35km, "F": forward 35km, "B": backward 35km "W": nadir 70km, "A": AVNIR-2) * DDDDD: Total orbit number of scene center ("00001" to "99999") * EEEE: Frame number of scene center, including scene shift ("0000" to "7199") |
SENSOR_CODE | String | Sensor code ("PSM": PRISM, "AV2": AVNIR-2) |
SENSOR_TYPE | String | Sensor type ("N": nadir 35km, "F": forward 35km, "B": backward 35km "W": nadir 70km, "A": AVNIR-2) |
TOTAL_ORBIT_NUMBER | Double | Total orbit number of scene center. |
使用说明:
The Japan Aerospace Exploration Agency (JAXA) releases the ALOS Orthorectified Image Product (ALOS-ORI) free of charge and open to the public with the following conditions:
代码:
var dataset = ee.ImageCollection('JAXA/ALOS/AVNIR-2/ORI')
.filter(ee.Filter.date('2011-01-01', '2011-04-01'));
var avnir2OriRgb = dataset.select(['B3', 'B2', 'B1']);
var avnir2OriRgbVis = {
min: 0.0,
max: 255.0,
};
Map.setCenter(138.7302, 35.3641, 12);
Map.addLayer(avnir2OriRgb, avnir2OriRgbVis, 'AVNIR-2 ORI RGB');