← LeaderboardsInvestigatorsiAttributed = a PI's even-split share of each grant — a $1M grant with 2 PIs counts $500K each.
Adnet Systems Inc
$1,168,212
Total funding
9
Grants
Funding over time
peak $408.5K · FY2014–21$500K$375K$250K$125K$0
'14
'15
'16
'17
'18
'19
'20
'21
Funding mix
By agency
NASA$1,168,212 · 9
By mechanism
—$1,168,212 · 9
Investigators at Adnet Systems Inc
InvestigatorsiAttributed = a PI's even-split share of each grant — a $1M grant with 2 PIs counts $500K each.
Exposure= the full size of every grant they're on ($1M each).
Rising Stars
First grant in the last 5 yrs
Not enough data
Emerging Leaders
6–10 yrs in
Not enough data
All-Time
Most funded here, all years
Not enough data
Largest grants
WE AIM TO UNDERSTAND THE UNDERLYING PHYSICS THAT CONNECTS THE FEATURES WITH A SIZE-SCALE OF UP TO 3000 MM IN THE LOW CORONA TO THE SOLAR WIND BY ANALYZING SOLAR IMAGING DATA FOR SEVERAL TIME PERIODS AT DIFFERENT PARTS OF SOLAR CYCLE 24.$369,483
· FY2020 · National Aeronautics and Space Administration
THE ONGOING DATA RODS ACCESS PROJECT (NNH11ZDA001N-ACCESS), BY REMOVING A LONGSTANDING BARRIER TO ACCESSING AND USING NASA DATA (I.E., THE DIGITAL$198,548
· FY2014 · National Aeronautics and Space Administration
THIS PROJECT AIMS TO LINK STRUCTURES IN THE SOLAR WIND MEASURED IN SITU BY THE PARKER SOLAR PROBE (PSP) TO OUTFLOWS OBSERVED IN EXTREME ULTRAVIOLET (EUV) AND WHITE LIGHT (WL) IMAGES OF THE SUN AND SOLAR CORONA. INVESTIGATING THE CONNECTION BETWEEN$181,888
· FY2021 · National Aeronautics and Space Administration
NOVEL APPROACHES FOR COMPUTING ATMOSPHERE PATH DELAY USING NUMERICAL WEATHER MODELS. AS OUR EXPERIENCE OF VLBI HARDWARE UPGRADE SHOWED, IMPROVEMENT O$154,614
· FY2014 · National Aeronautics and Space Administration
OUR PROJECT TARGETS ENHANCEMENT OF THE INFRASTRUCTURE OF SITE POSITION MONITORING DETERMINED WITH GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) AND SATEL$129,890
· FY2015 · National Aeronautics and Space Administration
MOTIVATION. A LONGSTANDING AND SIGNIFICANT "DIGITAL DIVIDE" IN DATA REPRESENTATION EXISTSBETWEEN HYDROLOGY AND CLIMATOLOGY AND METEOROLOGY. TYPICALLY$55,331
· FY2014 · National Aeronautics and Space Administration
PROCESSING SATELLITE ALTIMETRY DATA REQUIRES THE COMPUTATION OF PATH DELAY IN THE NEUTRAL ATMOSPHERE THAT IS USED FOR CORRECTING RANGES. THE PATH DELAY IS COMPUTED USING NUMERICAL WEATHER MODELS AND THE ACCURACY OF ITS COMPUTATION DEPENDS ON THE ACCURACY OF NUMERICAL WEATHER MODELS. ACCURACY OF NUMERICAL MODELS OVER LAND CAN BE EVALUATED BY COMPARISON WITH GROUND METEOROLOGICAL STATIONS ATMOSPHERIC SOUNDINGS AND WITH ESTIMATES OF PATH DELAY FROM SPACE GEODESY OBSERVATIONS. HOWEVER THE ACCURACY OF NUMERICAL WEATHER MODELS OVER ANTARCTICA AND GREENLAND WHERE THERE IS A VERY SPARSE NETWORK OF GROUND STATIONS IS NOT WELL KNOWN. THEREFORE THE ACCURACY OF THE PATH DELAY COMPUTATION OVER THESE REGIONS IS NOT KNOWN. THE ESSENCE OF THIS PROPOSAL IS TO USE GPS RADIO OCCULTATION DATA FOR COMPARISON OF OBSERVED PATH DELAYS FROM THESE OBSERVATIONS WITH PREDICTED PATH DELAYS FROM THE NUMERICAL WEATHER MODELS THAT ARE USED FOR PROCESSING ICESAT DATA. THE DIFFERENCES WILL BE USED FOR DERIVING THE ERROR MODEL OF ATMOSPHERIC PATH DELAY CORRECTIONS OF ALTIMETRY DATA OVER ANTARCTICA AND GREENLAND. SINCE THERE ARE TOO FEW METEOROLOGICAL STATIONS IN THE INNER PARTS OF ANTARCTICA AND GREENLAND THE GPS RADIO OCCULTATIONS WILL BE USED AS THE GROUND TRUTH. THE NEAR TERM GOAL IS TO EVALUATE THE CONTRIBUTION OF THE UNCERTAINTY OF OUR KNOWLEDGE OF THE STATE OF THE ATMOSPHERE TO ESTIMATES OF ICE MASS LOSS IN ANTARCTICA AND GREENLAND AND ITS SEASONAL VARIATIONS. IN PARTICULAR WE WILL EVALUATE SYSTEMATIC ERRORS IN PATH DELAY SEASONAL VARIATIONS AND THE SECULAR TREND. SEASONAL ERRORS MAY CAUSE BIASES IN ESTIMATES OF ICE MASS BALANCE DERIVED FROM SATELLITE ALTIMETRY. AS A LONG TERM GOAL WE WILL EVALUATE THE FEASIBILITY OF USING RADIO OCCULTATION DATA NOT ONLY FOR THE CHARACTERIZATION OF PATH DELAY ERRORS BUT FOR AN IMPROVEMENT IN COMPUTATION OF PATH DELAY FOR PROCESSING ICESAT-2 DATA. WE WILL DERIVE AN EMPIRICAL MODEL OF BIASES IN PATH DELAYS AND EVALUATE WHETHER THE BIAS CORRECTION MERITS PROCESSING ICESAT-2 DATA OVER ANTARCTICA AND GREENLAND. IN A CASE IF THE EVIDENCE WILL BE COLLECTED IN FAVOR OF THIS MODEL THE EXPERIENCE GAINED IN PROCESSING RO DATA WILL HELP TO FORMULATE RECOMMENDATIONS FOR MODIFICATION OF THE DATA ANALYSIS PROCEDURE TAKING INTO ACCOUNT ALL ISSUES OF LOGISTICS.$53,011
· FY2016 · National Aeronautics and Space Administration
THE TWITTER DATA SET IS POTENTIALLY A RICH SOURCE OF INFORMATION FOR SCIENCE APPLICATIONS. OVER THE PAST SEVERAL YEARS AS RESOURCES PERMIT WE HAVE BEEN INVESTIGATING THE FEASIBILITY OF EXTRACTING FROM THE TWITTER DATA STREAM--WITHOUT ACTIVELY SOLICITING INPUTS-- USEFUL INFORMATION FOR APPLICATION TO NASA PRECIPITATION RESEARCH. THERE HAVE BEEN SIMILAR USES OF TWITTER AND OTHER SOCIAL MEDIA MOSTLY RELATED TO NATURAL HAZARDS MONITORING AND MANAGEMENT IN WHICH THE PARTICIPANTS KNOWINGLY AND ACTIVELY CONTRIBUTE. TWO EXAMPLES ARE THE SNOWTWEETS PROJECT (HTTP://SNOWCORE.UWATERLOO.CA/SNOWTWEETS/) AND METEOROLOGICAL PHENOMENA IDENTIFICATION NEAR THE GROUND (MPING; HTTP://MPING.NSSL.NOAA.GOV/). OTHER SUCH USES DEAL WITH EARTHQUAKES VOLCANOES AIR POLLUTION ETC. BOTH CASES OF PASSIVE AND ACTIVE ENGAGEMENTS BY PARTICIPATING CITIZEN SCIENTISTS HOLD POTENTIAL FOR E.G. AUGMENTING VALIDATION PROGRAMS OF NASA SATELLITE PRECIPITATION MISSIONS. IN THE PASSIVE CASE WE HAVE EXPERIMENTED WITH LISTENING TO THE TWITTER STREAM FOR RAIN AND RELATED TWEETS IN DIFFERENT LANGUAGES AND MAPPING THEIR RESULTING DISTRIBUTION. OUR APPROACH SEEMS PROMISING FOR DEMONSTRATING NOT ONLY A UNIQUE APPLICATION OF TWITTER BUT ALSO A DEEPER POWER RESIDING WITHIN THE TWITTER DATA SET. THE TIME-VARYING SET OF RAIN TWEETS E.G. CAN BE THOUGHT OF AS AN ORGANIC NETWORK OF RAIN GAUGES. ISSUES THAT WE NEED TO MORE FULLY ADDRESS INCLUDE (1) FILTERING FOR QUALITY TWEETS (2) GEOLOCATION QUALITY AND (3) IRREGULAR LOCATIONS OF TWEETS. IN THE ACTIVE CASE WE HAVE CONDUCTED VERY PRELIMINARY EXPERIMENTS TO EVALUATE DIFFERENT METHODS OF ENGAGING WITH POTENTIAL PARTICIPANTS. FOR EXAMPLE WE HAVE REPLIED TO RAIN TWEETS WITH TRMM IMAGES GENERATED BY NASA GIOVANNI CENTERED ON THE TWEET LOCATIONS. (FOR THE PURPOSE OF THE EXPERIMENT OUR REPLIES ACTUALLY WERE DIRECTED TO A SPECIALLY CREATED TWITTER ACCOUNT OF OURS.) WE HAVE ALSO CONSIDERED USING ONLINE GAMES TO RECRUIT POTENTIAL ACTIVE PARTICIPANTS. WE BELIEVE OUR APPROACH WHICH DOES NOT REQUIRE PARTICIPANTS TO EXPLICITLY SIGN UP TO CONTRIBUTE AS CITIZEN SCIENTISTS EVEN IN THE ACTIVE CASE IS MORE ROBUST. PARTICIPANTS WHO ROUTINELY USE TWITTER WOULD CONTINUE TO DO SO. THE SCIENCE RATIONALE FOR MINING RAIN AND RELATED TWEETS IS TO POTENTIALLY OBTAIN A WIDESPREAD VIEW OF RAIN OCCURRENCE. ASSUMING THE TWEETS ARE OF REASONABLE QUALITY THE TWO MAIN SCIENCE ISSUES ARE (1) THE RESULTS ARE MOSTLY ONLY QUALITATIVE (NO RAIN RATE INFORMATION) AND (2) THE RESULTS ARE ONLY POSITIVE (NO DIRECT NO-RAIN REPORTS) THOUGH THERE ARE POSSIBLE WAYS TO MITIGATE THESE ISSUES. CURRENTLY THE RAIN/NO-RAIN BOUNDARY IS SUBJECT TO CONSIDERABLE UNCERTAINTY WHEN GAUGE STATIONS OR SATELLITE OVERPASSES ARE SPARSE. RAIN TWEETS COULD HELP CONSTRAIN THIS BOUNDARY. THE DEVELOPMENT OF SUCH AN APPLICATION OF TWITTER WOULD TAKE PLACE MAINLY IN THE U.S. WHERE THERE IS A HIGH DENSITY OF DATA. ACTUAL APPLICATIONS WOULD BE MOSTLY OUTSIDE THE U.S. BECAUSE IN MANY OF THOSE REGIONS THE RELEVANT MEASUREMENTS ARE FREQUENTLY SPARSE INACCESSIBLE OR NON-EXISTENT. OUR PROPOSED PROJECT GOAL IS TO MINE THE TWITTER DATABASE TO AUGMENT THE VALIDATION PROGRAM OF THE NASA GLOBAL PRECIPITATION MEASUREMENT (GPM) MISSION. OUR PROJECT WOULD ALSO HELP EXTEND THE APPLICATION REALM OF TWITTER AS A PLATFORM FOR CITIZEN SCIENCE TO SIMILAR SCIENCE MISSIONS IN GENERAL. SUCH A DEMONSTRATION OF THE VALUE OF TWITTER TO THE SCIENCE RESEARCH COMMUNITY WOULD$24,855
· FY2017 · National Aeronautics and Space Administration
EXCITATION AND DISSIPATION OF THE FREE CORE NUTATION THE FREE CORE NUTATION (FCN) IS ONE OF EARTH'S FUNDAMENTAL ROTATIONAL NORMAL MODES. IT ARISES BECAUSE THE FLUID CORE IS CONFINED WITHIN AN ELLIPSOIDAL MANTLE WHOSE ROTATION AND FIGURE AXES NEED NOT COINCIDE. IN THE TERRESTRIAL REFERENCE FRAME THE ASSOCIATED MOTION IS A NEARLY DIURNAL FREE WOBBLE (NDFW). ANALYSIS OF THE FCN (OR THE NDFW) ALLOWS US TO STUDY CERTAIN UNIQUE PROPERTIES OF THE EARTH; A CLASSIC EXAMPLE (GWINN 1986) WAS USING THE FCN TO DETERMINE THE ELLIPTICITY OF THE CORE-MANTLE BOUNDARY. OUR PROPOSAL AIMS TO IMPROVE OUR KNOWLEDGE OF THE FCN EXCITATION AND DISSIPATION AND THE GEOPHYSICAL INTERPRETATION OF FCN EFFECTS. AN IMPORTANT ASPECT IS TO IMPROVE THE MODELING OF ATMOSPHERIC AND OCEANIC CONTRIBUTIONS TO THE OBSERVED NUTATION SINCE AN IMPROPER ACCOUNTING OF THESE CAN BIAS THE RESPONSE ESTIMATES. THE MAIN GOALS OF OUR STUDY ARE (A) TO OBTAIN IMPROVED AND SELF-CONSISTENT ESTIMATES OF COMPLIANCES THAT DESCRIBE THE RESPONSE OF THE NON-RIGID EARTH TO EXTERNAL TORQUES AND GEOPHYSICAL EXCITATIONS ALONG WITH REALISTIC ERROR ESTIMATES; (B) TO CLOSE THE BUDGET OF THE EXCITATION AND DISSIPATION OF THE FCN OR TO ESTABLISH THAT THE BUDGET CANNOT BE CLOSED WITHIN UNCERTAINTIES OF GEODETIC OBSERVATIONS. OUR PRIMARY GEODETIC DATA WILL BE VERY LONG BASELINE INTERFEROMETRY (VLBI) GROUP DELAYS. THIS WILL BE ACHIEVED BY (1) INCORPORATING INTO OUR DATA ANALYSIS THE NON-GRAVITATIONAL FORCINGS FROM THE LATEST ADVANCED TIDAL AND NONTIDAL OCEANIC MODELS AND ATMOSPHERIC MODELS; (2) IMPROVING THE OCEAN TIDE MODEL AT PSI1 TIDE (CRITICAL BECAUSE ITS FREQUENCY IS SO CLOSE TO THE NDFW FREQUENCY); AND (3) ESTIMATING PARAMETERS OF THE NUTATION TRANSFER FUNCTION DIRECTLY FROM VLBI GROUP DELAYS WITHOUT RESORTING TO INTERMEDIATE TIME SERIES. IN PAST EFFORTS THE PSI1 OCEAN TIDE HAS NEVER BEEN HANDLED CORRECTLY. THIS IS BECAUSE UNLIKE ANY OTHER TIDE IT IS FORCED ABOUT EQUALLY BY THE GRAVITATIONAL TIDAL POTENTIAL AND BY RADIATIONAL EFFECTS OF THE ATMOSPHERIC TIDES. WE PROPOSE TO DETERMINE THE PSI1 BAROMETRIC PRESSURE TIDE FROM SEVERAL MODERN ANALYSES AND REANALYSES OF NUMERICAL WEATHER CENTERS. WE WILL BE GUIDED BY AN EXTENSIVE NETWORK OF BAROMETER MEASUREMENTS THAT WE HAVE BUILT UP OVER SEVERAL YEARS AND WHICH WE HAVE PREVIOUSLY USED TO STUDY THE S1 AND S2 AIR TIDES. WE WILL USE THE RESULTING AIR-TIDE MODEL TO FORCE A NUMERICAL OCEAN-TIDE MODEL THAT WE HAVE PREVIOUSLY USED TO STUDY THE S1 OCEAN TIDE. THE RESULTS COMBINED WITH THE NOMINALLY EASIER GRAVITATIONAL PART SHOULD RESULT IN A MUCH MORE REALISTIC MODEL OF THE PSI1 OCEAN TIDE THAT IS ESSENTIAL TO MITIGATE SYSTEMATIC ERRORS IN DETERMINING THE STRENGTH AND SHAPE OF THE FCN. WE WILL MODIFY THE WELL-KNOWN NEMO OCEAN MODEL TO COMPUTE OCEANIC ANGULAR MOMENTUM AND BOTTOM PRESSURE ON THE FLY AND TO STORE THESE DATA WITH A TIME RESOLUTION OF ONE HOUR. THE OCEAN DATA COMBINED WITH PRESSURE AND WIND DATA FROM NUMERICAL WEATHER CENTERS WILL SUPPLY NEW ANGULAR MOMENTUM CORRECTIONS FOR REANALYSIS OF VLBI NUTATION DATA AGAIN LEADING TO BETTER DETERMINED FCN PARAMETERS. WE ANTICIPATE THE NEMO DATA WILL BENEFIT A WIDE RANGE OF EARTH SCIENCE STUDIES NOT JUST OUR OWN. WE PROPOSE TO REANALYZE VLBI GROUP DELAYS FROM 1984 THROUGH PRESENT. WE WILL FIT PARAMETERS OF THE MODEL THAT RELATE THE OBSERVED SPECTRUM TO THE EXTERNAL GRAVITATIONAL EXCITATION EXERTED BY THE MOON SUN AND PLANETS AND TO INTERNAL EXCITATIONS CAUSED BY THE OCEANIC AND ATMOSPHERIC DYNAMICS. THE PARAMETERS OF THE MODEL WILL INCLUDE COMPLIANCES SUCH AS DYNAMIC ELLIPTICITY OF THE WHOLE EARTH AND THE CORE COMPLEX ELASTIC COMPLIANCES COUPLING AT THE CORE-MANTLE BOUNDARY AND OTHER PARAMETERS. WE WILL INVESTIGATE THE POSSIBILITY OF INCLUDING AD HOC EXCITATIONS TO EXPLAIN THE RESIDUAL SPECTRUM. FINALLY WE WILL FIT PARAMETERS OF THE MODEL DIRECTLY TO VLBI GROUP DELAY WITHOUT USING AN INTERMEDIATE SPECTRUM. WE WILL PERFORM A THOROUGH ERROR ANALYSIS AND DETERMINE REALISTIC UNCER$591
· FY2017 · National Aeronautics and Space Administration