高光谱综合观测卫星首批影像成果
The first batch of imaging achievements of hyperspectral comprehensive observation satellites
3月28日，国家航天局发布了
On March 28, the National Space Administration released
高光谱综合观测卫星首批影像成果
The first batch of image results of hyperspectral comprehensive observation satellite
涉及生态环境监测、大气环境监测
It involves ecological environment monitoring and atmospheric environment monitoring
水环境监测、自然资源监测四个方面
Water environment monitoring and natural resources monitoring
包括可见短波红外高光谱相机影像产品7幅
Including 7 visible short-wave infrared hyperspectral camera image products
大气痕量气体差分吸收光谱仪影像产品4幅
4 atmospheric trace gas differential absorption spectrometer image products
宽幅热红外成像仪影像产品3幅
and 3 wide thermal infrared imager image products
一起来看看吧!
Let's take a look!
生态环境监测
ecological environment monitoring
高光谱综合观测卫星高光谱数据立方体 湖北省黄石市
Hyperspectral data cube of hyperspectral integrated observation satellite Huangshi City, Hubei Province
可见近红外光谱立方体
visible and near infrared cube
短波红外光谱立方体
short-wave infrared spectrum cube
传感器：可见短波红外高光谱相机
Sensor: Visible short-wave infrared hyperspectral camera
接收时间：2023年1月25日
Received: 25 Jan 2023
精细反映地物光谱特性，区分不同地物的细微光谱差异，精准提取各种不同类型的水体、植被、农作物等。
It can accurately reflect the spectral characteristics of ground objects, distinguish the subtle spectral differences of different ground objects, and accurately extract various types of water bodies, vegetation, crops, etc.
高光谱综合观测卫星高光谱数据立方体
Hyperspectral data cube of hyperspectral integrated observation satellite
台湾省桃园市、新北市
Taoyuan City, Taiwan Province
可见近红外光谱立方体
visible and near infrared cube
短波红外光谱立方体
short-wave infrared spectrum cube
传感器：可见短波红外高光谱相机
Sensor: Visible short-wave infrared hyperspectral camera
接收时间：2023年1月16日
Received: 16 Jan 2023
精细反映地物光谱特性，区分不同地物的细微光谱差异，精准提取各种不同类型的水体、植被、农作物等。
It can accurately reflect the spectral characteristics of ground objects, distinguish the subtle spectral differences of different ground objects, and accurately extract various types of water bodies, vegetation, crops, etc.
高光谱数据地物分类图
Hyperspectral data classification map
传感器：可见短波红外高光谱相机
Sensor: Visible short-wave infrared hyperspectral camera
接收时间：2023年2月9日
Received: February 9, 2023
基于AHSI获取的迪拜沿海地区高光谱数据，通过地物分类可准确的识别出水体、建筑、道路、裸土等地物大类信息，并可在每一个大类中细分出3~5类有效亚类，还能识别出远海的船只信息。分类结果表明，高光谱综合观测卫星可支持开展更精细的城市规划、土地利用、生态环境、水质监测、海洋环境监管、渔业活动监管等多方面的应用研究。
Based on the hyperspectral data obtained from AHSI in the coastal area of Dubai, the classification of land features can accurately identify major categories of land features such as water bodies, buildings, roads, and bare soil, and can be subdivided into 3-5 effective subcategories within each category. It can also identify information about ships in the open sea. The classification results indicate that hyperspectral comprehensive observation satellites can support more detailed application research in urban planning, land use, ecological environment, water quality monitoring, marine environmental regulation, fishery activity regulation, and other aspects.
火山监测图
Volcano monitoring map
传感器：宽幅热红外成像仪
Sensor: Wide thermal infrared imager
接收时间：2023年2月14日—2023年2月19日
Received: February 14, 2023-February 19, 2023
上图为WTI获取的日本樱岛火山2023年02月14日的亮温图，下图为该地区不同时刻的亮温图，从不同时刻的亮温图可以判断火山喷发后对周围区域的影响，有效支撑火山周边海域环境的监测等相关工作。
The above picture is the brightness temperature map of Sakurajima volcano in Japan on February 14,2023 obtained by WTI, and the following picture is the brightness temperature map of this area at different times. The brightness temperature map at different times can judge the impact of volcanic eruption on the surrounding area and effectively support the monitoring of sea area environment around the volcano and other related work.
北极航道监测图
Arctic channel monitoring map
传感器：宽幅热红外成像仪
Sensor: Wide thermal infrared imager
接收时间：2023年2月26日
Received: 26 Feb 2023
左图为WTI获取的2023年2月26日07:40:14北极航道图，右图此地区的亮温图，上图可以准确监测碎冰量及海冰融化情况，可以实现全天时海冰变化监测，为航道的安全保障提供重要数据。(中间的位置是北极航道，蓝色表示低温的陆地，绿色和红色的为水体;绿色和红色表示不同的温度，红色表示温度高，是融化的水，绿色表示温度稍低的冰。)
The left picture shows the Arctic channel map obtained by WTI at 07:40:14 on February 26,2023, and the bright temperature map of this area on the right. The above figure can accurately monitor the amount of crushed ice and melting of sea ice, realize the monitoring of sea ice change throughout the day, and provide important data for the safety guarantee of the channel. (The middle position is the Arctic Passage, with blue indicating low-temperature land, green and red indicating water bodies; green and red indicating different temperatures, red indicating high temperatures for melted water, and green indicating slightly cooler ice.)
大气环境监测
atmospheric environment monitoring
大气痕量气体差分吸收光谱仪
Differential absorption spectrometer for atmospheric trace gases
单日观测全球480nm辐亮度图
Global 480nm Radiance Map Observed in a Single Day
传感器：大气痕量气体差分吸收光谱仪
Sensor: Atmospheric trace gas differential absorption spectrometer
接收时间：2023年2月6日
Received: 06 Feb 2023
上图为EMI首次获取紫外可见高光谱分辨率辐射数据。该载荷为我国目前在轨紫外可见波段光谱分辨率最高的载荷，可实现臭氧、二氧化氮、二氧化硫等污染气体观测，一天基本实现全球覆盖。
The above image shows EMI's first acquisition of UV-Vis high spectral resolution radiation data. This load is the load with the highest spectral resolution in the ultraviolet-visible band in orbit in China, which can realize the observation of ozone, nitrogen dioxide, sulfur dioxide and other pollution gases, and basically achieve global coverage in one day.
全球臭氧柱浓度监测图
Global ozone column concentration monitoring map
传感器：大气痕量气体差分吸收光谱仪
Sensor: Atmospheric trace gas differential absorption spectrometer
接收时间：2023年2月6日
Received: 06 Feb 2023
上图为EMI首次获取的单日全球臭氧柱浓度分布，清晰揭示臭氧全球分布，与国外同类卫星的监测结果相比趋势一致，可有力支撑大气污染防治、全球气候变化研究等。(DU代表多布森单位：Dobson Unit，简称DU。用于衡量大气中臭氧柱状密度的单位，1 DU指在标准温度与标准压力下，0.01毫米厚纯臭氧层所含的臭氧数量)
The above figure shows the single-day global ozone column concentration distribution obtained by EMI for the first time, which clearly reveals the global distribution of ozone. Compared with the monitoring results of similar foreign satellites, the trend is consistent, which can strongly support the prevention and control of air pollution and the research of global climate change. (DU The Dobson Unit is the Dobson Unit (DU). A unit of density for measuring the column of ozone in the atmosphere; 1 DU is the amount of ozone contained in the pure ozone layer 0.01 mm thick at standard temperature and pressure.
区域二氧化氮柱浓度监测产品
Regional nitrogen dioxide column concentration monitoring products
中东地区
Middle East
南亚地区
South Asia
北美地区
North America
南美地区
South America
传感器：大气痕量气体差分吸收光谱仪
Sensor: Atmospheric trace gas differential absorption spectrometer
接收时间：2023年2月2日—2023年2月6日
Received: February 2, 2023-February 6, 2023
上图为EMI首次获取的中东、南亚、北美、南美地区的局部二氧化氮高值分布。中东和南亚地区的地中海区域、波斯湾区域内人为排放源导致的二氧化氮高值分布，清晰观测到印度赖布尔、孟加拉达卡、伊拉克巴格达、伊朗德黑兰、埃及开罗、沙特利雅得、阿联酋迪拜等地的显著高值。北美地区的高值点主要包括墨西哥的墨西哥城、蒙特雷，美国的洛杉矶、芝加哥、纽约、丹佛等，以及加拿大的埃德蒙顿。南美地物的高值点主要是智利山火。
The above figure shows the local high value distribution of nitrogen dioxide in the Middle East, South Asia, North America, and South America regions obtained by EMI for the first time. The distribution of high levels of nitrogen dioxide emissions caused by anthropogenic sources in the Mediterranean region and the Persian Gulf region of the Middle East and South Asia has been clearly observed in places such as Raipur, Bangladesh, Baghdad, Tehran, Egypt, Riyadh, Saudi Arabia, and Dubai, United Arab Emirates. The high value points in North America mainly include Mexico City and Monterey in Mexico, Los Angeles, Chicago, New York, Denver in the United States, and Edmonton in Canada. The high value points of South American landmarks are mainly Chilean wildfires.
区域二氧化氮柱浓度监测产品
Regional nitrogen dioxide column concentration monitoring products
厄瓜多尔火山
Volcanoes of Ecuador
2023.01.21
2023.01.21
2023.02.20
2023.02.20
哥伦比亚火山
Volcanoes of Colombia
2023.02.10
2023.02.10
2023.02.15
2023.02.15
传感器：大气痕量气体差分吸收光谱仪
Sensor: Atmospheric trace gas differential absorption spectrometer
接收时间：2023年2月2日—2023年2月6日
Received: February 2, 2023-February 6, 2023
上图为EMI获取的厄瓜多尔火山和哥伦比亚火山二氧化硫柱浓度监测结果。
The above picture shows the results of sulfur dioxide column concentration monitoring obtained by EMI in Ecuador volcano and Colombia volcano.
水环境监测
water environment monitoring
温排水监测图
Monitoring Chart of Warm Water Discharge
传感器：宽幅热红外成像仪
Sensor: Wide thermal infrared imager
接收时间：2023年2月2日—2023年2月13日
Received: February 2, 2023-February 13, 2023
上图为WTI获取的印度某工厂附近的温排水亮温图，下图为该地区不同时刻的亮温图，下图清晰显示了温排水温升扩散范围及变化趋势，可有效支撑电厂、核电厂等周边海域环境的监测等相关工作。
The above figure is the bright temperature map of warm water near a factory in India obtained by WTI, and the following figure is the bright temperature map of the area at different times. The following figure clearly shows the temperature rise diffusion range and change trend of warm water, which can effectively support the monitoring of surrounding sea area environment such as power plant and nuclear power plant.
水质监测产品 滇池
Water Quality Monitoring Products Dianchi Lake
传感器：可见短波红外高光谱相机
Sensor: Visible short-wave infrared hyperspectral camera
接收时间：2023年1月17日
Received: 17 Jan 2023
上图为AHSI获取的云南滇池区域有色溶解性有机物(CDOM)、叶绿素a(Chl-a)、悬浮物浓度(TSM)产品，结果显示，滇池东北沿岸和北部草海有色溶解性有机物浓度较高，其余大部均处于较低水平;滇池东南沿岸和北部草海叶绿素a浓度较高，湖体北部和西南部叶绿素a浓度较低，呈现由西向东叶绿素a浓度增加的趋势;滇池东北沿岸和北部草海悬浮物浓度较高，西北沿岸和中部东岸悬浮物浓度较低，呈现由东北部向西南部方向悬浮物浓度降低的趋势。同时在影像中，除滇池外其他细小河道和湖泊的水质参数也清晰可辨，初步应用结果表明，AHSI具备有色溶解性有机物浓度、湖泊叶绿素a浓度、悬浮物浓度遥感反演能力。
The above figure shows the products of colored dissolved organic matter (CDOM), chlorophyll a(Chl-a) and suspended matter concentration (TSM) obtained by AHSI in Dianchi Lake, Yunnan Province. The results show that the concentration of colored dissolved organic matter along the northeast coast of Dianchi Lake and Caohai in the north is relatively high, while most of the rest are at a relatively low level;Chlorophyll a concentrations were higher in the southeast coast and north Caohai, lower in the north and southwest of the lake, and showed an increasing trend from west to east.The concentration of suspended matter in the northeast coast and north Caohai Lake was higher than that in the northwest coast and east coast of the middle part of Dianchi Lake, showing a decreasing trend from northeast to southwest. Besides, in the image, the water quality parameters of other small rivers and lakes besides Dianchi Lake are also clearly distinguishable. Preliminary application results show that AHSI has the ability to remotely retrieve the concentration of colored dissolved organic matter, lake chlorophyll a concentration, and suspended solids concentration.
水质监测产品 太湖
Water Quality Monitoring Products
传感器：可见短波红外高光谱相机
Sensor: Visible short-wave infrared hyperspectral camera
接收时间：2023年2月26日
Received: 26 Feb 2023
上图为AHSI获取的太湖区域有色溶解性有机物(CDOM)、叶绿素a(Chl-a)、悬浮物浓度(TSM)产品，结果显示，太湖北沿岸有色溶解性有机物浓度较高，由北向南浓度逐渐降低;太湖西岸和中部西山岛北侧叶绿素a浓度均较高，呈现由西向东叶绿素a浓度逐渐减少的趋势;太湖西南沿岸的悬浮颗粒物浓度较高，从中部到东部区域悬浮物浓度较低，呈现由西南部向东北部方向悬浮物浓度降低的趋势。同时在影像中，除太湖外其他细小河道和湖泊的水质参数也清晰可辨，初步应用结果表明，AHSI具备有色溶解性有机物浓度、湖泊叶绿素a浓度、悬浮物浓度遥感反演能力。
The above figure shows the colored dissolved organic matter (CDOM), chlorophyll a(Chl-a) and suspended matter concentration (TSM) products obtained by AHSI in Taihu Lake. The results show that the concentration of colored dissolved organic matter along the north coast of Taihu Lake is relatively high, and the concentration decreases gradually from north to south;The chlorophyll-a concentrations in the west bank of Taihu Lake and the north side of Xishan Island in the middle of Taihu Lake were higher, and showed a decreasing trend from west to east.The concentration of suspended particles in the southwest coast of Taihu Lake is higher, and the concentration of suspended particles in the middle and east regions is lower, showing a decreasing trend from southwest to northeast. Besides, the water quality parameters of other small rivers and lakes except Taihu Lake are also clearly identifiable in the image. The preliminary application results show that AHSI has the ability of remote sensing retrieval of color dissolved organic matter concentration, lake chlorophyll a concentration and suspended matter concentration.
点源甲烷排放监测产品
Point Source Methane Emission Monitoring Products
利比亚、美国
Libya, United States
传感器：可见短波红外高光谱相机
Sensor: Visible short-wave infrared hyperspectral camera
接收时间：2023年3月12日(a)2023年3月5日(b)
Received: 12 March 2023 (a) 5 March 2023 (b)
基于AHSI载荷数据，利用优化的甲烷柱浓度反演算法，在利比亚和美国开展甲烷点源排放遥感监测。其中图(a)为利比亚Dor Marada油井甲烷泄漏监测结果，图(b)为美国二叠纪盆地DCP Midstream油井甲烷泄漏监测结果。成功监测到区域内清晰的甲烷排放羽流。上述监测结果表明高光谱综合观测卫星AHSI载荷具有较高灵敏度和探测精度，能够对天基大范围内的甲烷排放点源进行精准监测，为我国实现“碳达峰、碳中和”战略目标提供有力的技术支撑。
Based on the AHSI data, the optimized methane column concentration retrieval algorithm was used to monitor methane point source emissions in Libya and the United States. Figure (a) shows the monitoring results of methane leakage of Dor Marada oil well in Libya, and Figure (b) shows the monitoring results of methane leakage of DCP Midstream oil well in Permian Basin of the United States. A clear methane emission plume was successfully detected in the area. The above monitoring results show that the hyperspectral integrated observation satellite AHSI payload has high sensitivity and detection accuracy, and can accurately monitor the methane emission point sources in a large range of space-based, providing strong technical support for China to achieve the strategic goal of "carbon peak, carbon neutrality".
自然资源监测
Natural resources monitoring
矿物分布产品图
Mineral distribution product map
传感器：可见短波红外高光谱相机
Sensor: Visible short-wave infrared hyperspectral camera
接收时间：2023年2月28日
Received: 28 Feb 2023
基于AHSI数据，提取的青海都兰地区绢云母、绿泥石两种矿物信息。高光谱卫星数据经过MNF变换后，增强了对岩性与构造地质信息的识别。通过对比绿泥石影像光谱与光谱库光谱发现，绿泥石的2330nm附近的主吸收特征及2255nm附近的次级吸收特征清晰可辨;绢云母矿物2215nm附近的主吸收特征及2350nm附近的次级吸收特征明细，与光谱库中的绿泥石和绢云母的光谱谱形、吸收特征一致性较好。利用该高光谱数据进行地质信息 (岩性、构造) 增强识别以及矿物类型提取，可为后续高光谱矿物填图以及资源和能源勘查提供基础支撑。
Based on AHSI data, the mineral information of sericite and chlorite in Dulan area, Qinghai Province was extracted. The MNF transform of hyperspectral satellite data enhances the identification of lithologic and structural geological information. By comparing the image spectrum with the spectrum library spectrum of chlorite, it is found that the main absorption feature near 2330nm and the secondary absorption feature near 2255nm of chlorite are clearly identifiable.The main absorption characteristics near 2215nm and the secondary absorption characteristics near 2350nm of sericite minerals are detailed, which are in good agreement with the spectral shapes and absorption characteristics of chlorite and sericite in the spectral library. The hyperspectral data are used for enhancing geological information (lithology and structure) identification and mineral type extraction, and can provide basic support for subsequent hyperspectral mineral mapping and resource and energy exploration.
