ABoVE/ASCENDS：合并大气二氧化碳、甲烷和气象数据，2017
【摘要】 ABoVE/ASCENDS: Merged Atmospheric CO2, CH4, and Meteorological Data, 2017简介该数据集提供了大气二氧化碳 (CO2)、甲烷 (CH4)、水蒸气浓度、气温、气压、风速和风向的现场机载测量数据，以及在 2017 年 7 月 20 日至 2017 年 8 月 8 日在美国阿拉斯加、加拿大育空地区和西北地区部署的夜间、白天和...
ABoVE/ASCENDS: Merged Atmospheric CO2, CH4, and Meteorological Data, 2017
简介
该数据集提供了大气二氧化碳 (CO2)、甲烷 (CH4)、水蒸气浓度、气温、气压、风速和风向的现场机载测量数据，以及在 2017 年 7 月 20 日至 2017 年 8 月 8 日在美国阿拉斯加、加拿大育空地区和西北地区部署的夜间、白天和季节二氧化碳排放主动感知 (ASCENDS) 期间收集的柱平均二氧化碳的机载遥感测量数据。二氧化碳和甲烷由美国宇航局的地球对流层二氧化碳大气垂直观测 (AVOCET) 仪器测量。水蒸气和相对湿度用二极管激光比重计测量。测量是在一架 DC-8 飞机上进行的。ASCENDS 飞行与 2017 年北极-北方脆弱性实验 (ABoVE) 活动协调进行。数据以 ICARTT 格式提供，并附有飞行视频存档。
摘要
| Variable | Unit Conversion, if changed | Original Name | Description | Data-ID |
|---|---|---|---|---|
| UTC | ("seconds (from midnight UTC)" to "s") | N/A | Mid-time of the interval in seconds since midnight UTC on the flight date | Merge code |
| JDAY | N/A | Julian day of the flight start date | Merge code | |
| INDEX | 1 | N/A | Sequential index of the data record starting with the flight number | Merge code |
| FLIGHT | 1 | N/A | Flight number | Merge code |
| LOCAL_SUN_TIME | degrees | N/A | Local sun time at the sampling longitude and time | Merge code |
| LATITUDE | degrees_north | N/A | Latitude | Ascends-Hskping |
| LONGITUDE | degrees (0-360) | Longitude | Longitude | Ascends-Hskping |
| ALTP | ("ft" to "km") | Pressure_Altitude | Aircraft pressure altitude derived from air pressure sensor | Ascends-Hskping |
| PRESSURE | ("mb" to "hPa") | Static_Pressure | Static air pressure | Ascends-Hskping |
| TEMPERATURE | ("Celcius" to "K") | Static_Air_Temp | Static air temperature | Ascends-Hskping |
| THETA | K | N/A | Potential temperature | Merge code |
| O3COLUMN | Du | N/A | Ozone column | OMI |
| SZA | 1 | N/A | Solar zenith angle | Merge code |
| WNS | ("m/s (limited to where Roll_Angle <= 5 degrees)" to "m/s") | Wind_Speed | Wind speed, limited to where Roll_Angle <= 5 degrees | Ascends-Hskping |
| WND | ("deg (0-360" to "deg") | Wind_Direction | Wind direction, 0-360 degrees, clockwise from +y | Ascends-Hskping |
| DOY | ("day beginning January 1" to "DOY") | Day_Of_Year | Fight day of year, beginning January 1 | Ascends-Hskping |
| MSL_GPS_ALT | ("m (height above mean sea level)" to "km") | MSL_GPS_Altitude | Aircraft GPS altitude above mean sea level | Ascends-Hskping |
| HAE_GPS_ALT | ("m (height above ellipsoid WGS84)" to "km") | HAE_GPS_Altitude | Aircraft GPS altitude above WGS84 ellipsoid | Ascends-Hskping |
| RadarAlt | ("ft" to "km") | Radar_Altitude | Aircraft radar altitude | Ascends-Hskping |
| GRD_SPD | ("m/s" to "m s-1") | Ground_Speed | Aircraft ground speed | Ascends-Hskping |
| TAS | ("kts" to "m/s") | True_Air_Speed | Aircraft true airspeed | Ascends-Hskping |
| IAS | ("kts" to "m/s") | Indicated_Air_Speed | Aircraft indicated airspeed | Ascends-Hskping |
| MachNumber | Mach_Number | Aircraft speed in mach number | Ascends-Hskping | |
| VerticalSpeed | ("m/s" to "m s-1") | Vertical_Speed | Aircraft vertical speed | Ascends-Hskping |
| HDG | ("deg (0-360" to "degs") | True_Heading | Aircraft true heading, 0-360 degrees, clockwise from +y | Ascends-Hskping |
| TRK | ("deg (0-360" to "degs") | Track_Angle | Aircraft track angle, 0-360 degrees, clockwise from +y | Ascends-Hskping |
| DriftAngle | ("deg (+-180" to "degs") | Drift_Angle | Aircraft drift angle, +/-180 degrees, clockwise from +y | Ascends-Hskping |
| PITCH | ("deg (+-180" to "degs") | Pitch_Angle | Aircraft pitch angle, +/-180 degrees, up+ | Ascends-Hskping |
| ROLL | ("deg (+-180" to "degs") | Roll_Angle | Aircraft roll angle, +/-180 degrees, right+ | Ascends-Hskping |
| PotentialTemp | ("Kelvin" to "degK") | Potential_Temp | Potential temperature | Ascends-Hskping |
| Dewpoint | ("Celcius" to "K") | Dew_Point | Dew point temperature (data are missing or not included for all files) |
Ascends-Hskping |
| TotalAirTemp | ("Celcius" to "K") | Total_Air_Temp | An intermediate product of air temperature measurement, not corrected for air motion | Ascends-Hskping |
| IR_SurfTemp | ("Celcius" to "K") | IR_Surf_Temp | Surface temperature | Ascends-Hskping |
| CabinPressure | ("hpa" to "hPa") | Cabin_Pressure | Aircraft cabin pressure | Ascends-Hskping |
| SolarZenithAngle | ("deg" to "degs") | Solar_Zenith_Angle | Solar zenith angle | Ascends-Hskping |
| AircraftSunElevation | ("deg" to "degs") | Aircraft_Sun_Elevation | Sun elevation angle with respect to aircraft | Ascends-Hskping |
| SunAzimuth | ("deg" to "degs") | Sun_Azimuth | Sun azimuth angle | Ascends-Hskping |
| AircraftSunAzimuth | ("deg" to "degs") | Aircraft_Sun_Azimuth | Sun azimuth angle with respect to aircraft | Ascends-Hskping |
| MixingRatio | ("g/kg" to "g kg-1") | Mixing_Ratio | Atmospheric water mass mixing ratio (data are missing or not included for all files) |
Ascends-Hskping |
| VaporPresWater | ("mb" to "hPa") | Part_Press_Water_Vapor | Partial pressure of water vapor (data are missing or not included for all files) |
Ascends-Hskping |
| SatVaporPresWater | ("mb" to "hPa") | Sat_Vapor_Press_H2O | Saturated vapor pressure over liquid water | Ascends-Hskping |
| SatVaporPresIce | ("mb" to "hPa") | Sat_Vapor_Press_Ice | Saturated vapor pressure over ice | Ascends-Hskping |
| RelativeHumidity | ("percent (with respect to water)" to "%") | Relative_Humidity | Relative humidity (data are missing or not included for all files) |
Ascends-Hskping |
| CH4_ppmv | ("ppmv" to "ppbv") | CH4_ppmv | Measurements of dry methane (CH4) in volumetric mixing ratio (from the AVOCET instrument) |
ASCENDS-AVOCET-CH4 |
| CO2_MixingRatio | ppmv | CO2_ppmv | Measurements of dry carbon dioxide (CO2) in volumetric mixing ratio (from the AVOCET instrument) |
ASCENDS-AVOCET-CO2 |
| XCO2_Sounder | ppm | XCO2_Sounder | Measurements of column-averaged dry-air mole fraction (XCO2) (from the CO2 Sounder Lidar instrument) |
ASCENDS-CO2SOUNDER-XCO2 |
| Aircraft_Altitude | ("m" to "km") | Aircraft_Altitude | GPS height above mean sea level | ASCENDS-CO2SOUNDER-XCO2 |
| H2O_vapor_DLH | ppmv | H2O_ppmv | Water vapor mixing ratio | ASCENDS-DLH |
| RHi_pct_DLH | % | RHi_pct | Relative humidity with respect to ice | ASCENDS-DLH |
| RHw_pct_DLH | % | RHw_pct | Relative humidity with respect to liquid | ASCENDS-DLH |
代码
!pip install leafmap
!pip install pandas
!pip install folium
!pip install matplotlib
!pip install mapclassify
import pandas as pd
import leafmap
url = "https://github.com/opengeos/NASA-Earth-Data"
df = pd.read_csv(url, sep="\t")
df
leafmap.nasa_data_login()
results, gdf = leafmap.nasa_data_search(
short_name="ABoVE_ASCENDS_Merge_2114",
cloud_hosted=True,
bounding_box=(-165.68, 34.59, -98.15, 71.27),
temporal=("2017-07-20", "2017-08-08"),
count=-1, # use -1 to return all datasets
return_gdf=True,
)
gdf.explore()
#leafmap.nasa_data_download(results[:5], out_dir="data")
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