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1. APR-2 Dual-frequency Airborne Radar Observations, Wakasa Bay [NSIDC-0195]
In January and February 2003, the Airborne Second Generation Precipitation Radar (APR-2) collected data in the Wakasa Bay AMSR-E validation campaign over the sea of Japan on board a NASA P-3 aircraft. ...


2. CLPX-Airborne: Airborne GPS Bistatic Radar [NSIDC-0156]
This data set consists of measurements of GPS signals reflected from the Earth's surface and collected on an airborne platform. A modified GPS Delay Mapping Receiver (DMR) tracks and measures the ...


3. CLPX-Airborne: Airborne Synthetic Aperture Radar (AIRSAR) Imagery [NSIDC-0153]
Airborne Synthetic Aperture Radar (AIRSAR) is a side-looking imaging radar that is able to collect data irrespective of daylight or cloud cover. The AIRSAR instrument was operated in two modes over ...


4. CLPX-Airborne: Polarimetric Ku-Band Scatterometer (POLSCAT) Data [NSIDC-0159]
This data set contains Ku-band polarimetric scatterometer (POLSCAT) data collected as part of the Cold Land Processes Field Experiment (CLPX) to enable the development of a retrieval algorithm for ...


5. CLPX-Ground: Ground-Based Frequency Modulated Continuous Wave (FMCW) Radar [NSIDC-0164]
This data set is comprised of FMCW radar measurements, which are sensitive to electromagnetic discontinuities in the snowpack, made during the 2002 and 2003 Cold Land Processes Field Experiment (CLPX). ...


6. CLPX-Ground: Ground-based L and Ku band polarimetric scatterometry [NSIDC-0166]
This data set includes ground-based radar observations carried out at the Fraser Experimental Forest Headquarters, Colorado, USA (39.95 N, 105.9 W), between 17-26 February and 26-30 March 2003. Truck-mounted ...


7. CLPX-Satellite: Radarsat Synthetic Aperture Radar Imagery [NSIDC-0146]
This data set consists of time-series spaceborne Synthetic Aperture Radar (SAR) imagery of the three Cold Land Processes Field Experiment (CLPX) Meso-cell Study Areas (MSAs) (Fraser, Rabbit Ears, ...


8. DISP Yearly Satellite Photographic Mosaics of Greenland 1962-1963 [NSIDC-0118]
The Declassified Intelligence Satellite Photographs (DISP) Yearly Satellite Photographic Mosaics of Greenland are composites of black-and-white photographs of Greenland taken from American satellites ...


9. RAMP AMM-1 SAR Image Mosaic of Antarctica [NSIDC-0103]
In 1997, the Canadian RADARSAT-1 satellite was rotated in orbit so that its Synthetic Aperture Radar (SAR) antenna looked south towards Antarctica. This permitted the first high-resolution mapping ...


10. SMEX02 Landsat Thematic Mapper Imagery, Iowa [NSIDC-0199]
This data set provides imagery developed from Landsat 5 and 7 Thematic Mapper (TM) data for use in studying land cover features during the Soil Moisture Experiment 2002 (SMEX02). The images are the ...


11. SMEX02 Passive and Active L and S band System (PALS) Data [NSIDC-0183]
This data set contains calibrated sensor measurements acquired by the Passive and Active L- and S-band (PALS) airborne microwave sensor during the Soil Moisture Experiment 2002 (SMEX02). This data ...


12. Surface Elevation and Ice Thickness, Western Marie Byrd Land, Antarctica [NSIDC-0119]
This data set provides surface elevation and ice thickness data for a portion of the Marie Byrd Land sector of West Antarctica, including the Ford Ranges, the Sulzberger Ice Shelf, much of the Edward ...


13. Ionosonde Stations [gov.noaa.ngdc.stp.ionosonde.G10145]
Ionograms are recorded tracings of reflected high frequency radio pulses generated by an ionosonde. Unique relationships exist between the sounding frequency and the ionization densities which can ...


14. SMAPVEX12 UAVSAR Incidence-Angle Normalized Backscatter Data [SV12UBK]
This data set contains backscatter data obtained by the Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) instrument. The data were collected as part of the Soil Moisture Active Passive ...


15. GPM Ground Validation Advanced Microwave Radiometer Rain Identification (ADMIRARI) GCPEx [gpmadmirgcpex]
The GPM Ground Validation Advanced Microwave Radiometer Rain Identification (ADMIRARI) GCPEx dataset measures brightness temperatures at three frequencies (10.7, 21.0 and 36.5 GHz) and at two polarized ...


16. TRMM Ground Validation (GV) Calibrated Radar Reflectivity Product (TRMM GV Product 1C51) [GES_DISC_TRMM_baseUW_KWAJ_V4]
The Tropical Rainfall Measuring Mission (TRMM) is a joint U.S.-Japan satellite mission to monitor tropical and subtropical precipitation and to estimate its associated latent heating. TRMM was successfully ...


17. TRMM Ground Validation (GV) Calibrated Radar Reflectivity Product (TRMM GV Product 1C51) [GES_DISC_TRMM_1C51_V4]
The Tropical Rainfall Measuring Mission (TRMM) is a joint U.S.-Japan satellite mission to monitor tropical and subtropical precipitation and to estimate its associated latent heating. TRMM was successfully ...


18. TRMM Ground Validation (GV) Radar Reflectivity Product (TRMM GV Product 1B51) [GES_DISC_TRMM_GV_HSTN_1B51_V2]
The purpose of the TRMM Ground Validation (GV) program is to develop validation methods and to obtain reliable surface-based data during the TRMM mission, for verifying ...


19. Airborne Cloud Radar (ACR) Reflectivity, Wakasa Bay, Japan [NSIDC-0212]
This data set includes 94 GHz co- and cross-polarized radar reflectivity. The Airborne Cloud Radar (ACR) sensor was mounted to a NASA P-3 aircraft flown over the Sea of Japan, the Western Pacific ...


20. Baltic Sea Experiment (BALTEX) Ground-Based Radar Polar Volume Data [NSIDC-0209]
This data set includes non-Doppler polar volume reflectivity data from the Baltic Sea Experiment (BALTEX). Data were collected on Sweden's Gotland Island, using an Ericsson radar mounted at 56 m above ...


21. SMAPVEX12 PALS Backscatter Data [SV12PLBK]
This data set contains backscatter data obtained by the Passive Active L-band System (PALS) microwave aircraft instrument as part of the Soil Moisture Active Passive Validation Experiment 2012 (SMAPVEX12).


22. SMEX02 Airborne Synthetic Aperture Radar (AIRSAR) Data, Iowa [NSIDC-0206]
This data set contains radar backscatter measurments taken over the Soil Moisture Experiments 2002 (SMEX02) Walnut Creek Watershed area in Iowa, USA. The Airborne Synthetic Aperture Radar (AIRSAR) ...


23. SMEX02 QuikSCAT/SeaWinds Backscatter Data, Iowa [NSIDC-0233]
This data set includes data collected over the Soil Moisture Experiment 2002 (SMEX02) area of Iowa, USA, during June and August, 2002. The SeaWinds scatterometer on NASA's QuikScat satellite collected ...


24. BYU Daily Browse Images of QuikSCAT Sigma-0 Measurements [NSIDC-0256]
The SeaWinds on QuikSCAT scatterometer provides normalized radar cross section (sigma-0) measurements of the Earth's surface. While originally designed for wind observation, scatterometers have proven ...


25. BYU Daily Browse Images of SeaWinds Sigma-0 Measurements [NSIDC-0257]
The SeaWinds on ADEOS-II (Midori-II) scatterometer provides normalized radar cross section (sigma0) measurements of the Earth's surface. While originally designed for wind observation, scatterometers ...


26. BYU High Resolution Images of ERS Sigma0 Measurements [NSIDC-0260]
The C-band scatterometers on ERS-1 and ERS-2 provided normalized radar cross section (sigma0) measurements of the Earth's surface. While originally designed for wind observation, scatterometer sigma0 ...


27. BYU High Resolution Images of NSCAT Sigma0 Measurements [NSIDC-0259]
The NASA scatterometer (NSCAT) provided normalized radar cross section (sigma0) measurements of the Earth's surface. While originally designed for wind observation, scatterometer sigma0 measurements ...


28. BYU High Resolution Images of Seasat Sigma0 Measurements [NSIDC-0258]
The Seasat scatterometer (SASS) provided normalized radar cross section (sigma0) measurements of the Earth's surface. SASS data were acquired at 4.45 km resolution. While originally designed for wind ...


29. BYU Scatterometer Climate Record Pathfinder (SCP) Data Sets [NSIDC-0261]
Brigham Young University (BYU) Center for Remote Sensing holds various data from the Scatterometer Climate Record Pathfinder (SCP) program. The SCP is a NASA-sponsored project to develop scatterometer-based ...


30. SMEX02 Airborne GPS Bistatic Radar Data, Iowa [NSIDC-0275]
This data set contains measurements of Global Positioning System (GPS) signals reflected from the Earth?s surface and collected on an airborne platform. The measurements were taken over the Soil Moisture ...


31. US International Trans-Antarctic Scientific Expedition 400 MHz Subsurface Radar Profiles [NSIDC-0254]
This data set includes subsurface radar profiles that were recorded between core sites during the November-December seasons for 1999-2002. Data were collected using an ice-penetrating radar to survey ...


32. Glaciological Investigations of the Bulge and Trunk of Kamb Ice Stream, West Antarctica [NSIDC-0380]
This data set contains radar data from the Kamb Ice Stream (KIS), formerly known as Ice Stream C, in West Antarctica. The project was part of a larger study to assess the likelihood of ice stream ...


33. HDF4 Data Used to Assess Long-Term Access to Remote Sensing Data with Layout Maps [NSIDC-0397]
Notice to Data Users: The documentation for this data set was provided solely by the Principal Investigator(s) and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support ...


34. SMEX03 Airborne GPS Bistatic Radar Data [NSIDC-0376]
This data set contains measurements of Global Positioning System (GPS) signals reflected from the Earth?s surface and collected on an airborne platform. The measurements were taken over the Soil Moisture ...


35. SMEX03 Airborne Synthetic Aperture Radar (AIRSAR) Data: Oklahoma [NSIDC-0370]
Notice to Data Users: The documentation for this data set was provided solely by the Principal Investigator(s) and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support ...


36. SMEX03 ENVISAT ASAR Data, Alabama [NSIDC-0357]
This data set is comprised of browse images acquired over the regional study areas of Alabama, Georgia, and Oklahoma USA as part of the 2003 Soil Moisture Experiment (SMEX03). The experiment was conducted ...


37. Co-Registered AMSR-E, QuikSCAT, and WMO Data [NSIDC-0450]
Notice to Data Users: The documentation for this data set was provided solely by the Principal Investigator(s) and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support ...


38. Ice Flow History of the Thwaites Glacier, West Antarctica [NSIDC-0463]
This data set contains past flow lines of Thwaites Glacier. The flow lines were identified using layer patterns tracked between parallel radar layers, from a radar profile of the Thwaites Glacier ...


39. NEXRAD Rainfall Data: Eureka, California [NSIDC-0300]
Next-Generation Radar (NEXRAD) Weather Surveillance Radar 1988 (WSR-88D) measurements were used to support AMSR-E rainfall validation efforts in Eureka, California, USA. WSR-88D radar has a measurement ...


40. Radar Investigations of Antarctic Ice Stream Margins, Siple Dome, 1998 [NSIDC-0303]
This data set consists of surface-based radar measurements, including geometry of the bed, surface, and internal layers, and bed reflectivity measurements at two sites along ice stream margins at ...


41. SMEX03 QuikSCAT/SeaWinds Backscatter Data, Alabama [NSIDC-0333]
This data set includes data collected over the Soil Moisture Experiment 2003 (SMEX03) areas of Alabama, Georgia, and Oklahoma, USA during May to August 2003, and Brazil during November to December ...


42. SMEX04 ENVISAT ASAR Data: Arizona [NSIDC-0417]
This data set is comprised of browse images acquired over the regional study area of Arizona, USA for the 2004 Soil Moisture Experiment (SMEX04). The experiment was conducted using the Advanced Synthetic ...


43. SMEX04 QuikSCAT/SeaWinds Backscatter Data: Sonora [NSIDC-0340]
This data set includes data collected over the Soil Moisture Experiment 2004 (SMEX04) area of Sonora, Mexico during 1 June to 30 September 2004. The SeaWinds scatterometer on NASA's Quick Scatterometer ...


44. SMEX05 QuikSCAT/SeaWinds Backscatter Data: Iowa [NSIDC-0448]
Notice to Data Users: The documentation for this data set was provided solely by the Principal Investigator(s) and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support ...


45. PacIOOS High Frequency Radio (HFR) Radial Velocity: Kaena Point, Oahu [knaagg]
High frequency Doppler Radios (HFDR) are used to measure surface currents averaged half-hourly to a distance of more than 100 km (60 miles). They consist of a low-power transmitter sending radio waves ...


46. PacIOOS High Frequency Radio (HFR) Radial Velocity: Kakaako (Waikiki), Oahu [kakagg]
High frequency Doppler Radios (HFDR) are used to measure surface currents averaged hourly to a distance of more than 100 km (60 miles). They consist of a low-power transmitter sending radio waves ...


47. PacIOOS High Frequency Radio (HFR) Radial Velocity: Kalaeloa (Barbers Point), Oahu [kalagg]
High frequency Doppler Radios (HFDR) are used to measure surface currents averaged half-hourly to a distance of more than 100 km (60 miles). They consist of a low-power transmitter sending radio waves ...


48. PacIOOS High Frequency Radio (HFR) Radial Velocity: Keaukaha, Big Island [kkhagg]
High frequency Doppler Radios (HFDR) are used to measure surface currents averaged hourly to a distance of more than 100 km (60 miles). They consist of a low-power transmitter sending radio waves ...


49. PacIOOS High Frequency Radio (HFR) Radial Velocity: Koko Head, Oahu [kokagg]
High frequency Doppler Radios (HFDR) are used to measure surface currents averaged half-hourly to a distance of more than 100 km (60 miles). They consist of a low-power transmitter sending radio waves ...


50. TRMM Precipitation Radar (PR) Level 1 Power and Reflectivity Products (TRMM Product 1B21) [GES_DISC_TRMM_1B21_V7]
The Tropical Rainfall Measuring Mission (TRMM) is a joint U.S.-Japan satellite mission to monitor tropical and subtropical precipitation and to estimate its associated latent heating. ...


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